Dreaded P0300! We know what it's NOT! 2005 6.0 5.3 Lq4 P0455

Поделиться
HTML-код
  • Опубликовано: 30 сен 2024
  • Support the Channel with a Like and Subscribe!
    Become a Channel Member or Patreon at: / rainmanraysrepairs
    Visit our Second Channel on RUclips, RainmanRay Off Duty / rainmanrayoutoftheshop
    Follow on Twitter: @RainmanRay4Real
    TikTok: www.tiktok.com/@rainman_rays_repairs
    More at RainmanRaysRepairs.com
    Check out my Merchandise shop for Men's and Women's Apparel, MUGS and Stickers! rainmanraysrep...
    Support the channel on Patreon: / rainmanraysrepairs
    Patreon is a "Tip Jar" I don't post much there, daily YT uploads are all that I can manage for now
    Amazon List, must have for any toolbox!
    1: Astro Tools 52SL 500x2 Lumen Wirelessly Rechargeable Folding Double-Sided LED Slim Light, & 52SLC 500x2 Lumen Folding Double-Sided LED Slim Light W/Wireless Charging Pad amzn.to/3Jd2h6t
    2: Mountain 5-Piece Metric Double Box Universal Spline Reversible Ratcheting Wrench Set; 8 mm - 18mm, 90 Tooth Design, Long, Flexible, Reversible; MTNRM6 amzn.to/3OJTRp2
    3: NOCO E404 12.25 Oz Battery Terminal Cleaner Spray and Corrosion Cleaner with Acid Detector amzn.to/3ILbdjv
    My Camera Gear:
    Gopro Hero 10 amzn.to/3AaxELe
    Hero 9&10 Dual Battery Charger MUST HAVE! amzn.to/3g5KdAT
    Flexible Camera Mount amzn.to/3Jywrk5
    #brakecleanmafia #wifeunit #rainman #comnissionearned #mechanic #technician #dealer #independent #autorepair
    As an Amazon Associate I earn from qualifying purchases.
    Also, I personally use or have used the products featured in my links and only recommended them if I feel they are of good quality.
    ”Intro Music by Karl Casey @ White Bat Audio”
    Thanks to Jesse for making the intro and graphic for us to enjoy!!!
    “All the videos, songs, images, and graphics used in the video belong to their respective owners and I or this channel does not claim any right over them.
    Copyright Disclaimer under section 107 of the Copyright Act of 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing.”
    Customer Customer States Mechanic Fails Engine Transmission Gas Diesel off road race 4x4 street car daily driver scam dealership dealer technician how to

Комментарии • 985

  • @devinangola3458
    @devinangola3458 Год назад +81

    Not to sure why you’re apologizing for using the scan tool, that was the best part!🙂👍
    Your dedication to solving the problem is amazing, trouble shooting in real time!
    And the wife unit and Troy picking up the slack for you is heart warming.😉
    You have a great day Rainman.🙂

    • @IR-nq4qv
      @IR-nq4qv Год назад +6

      Scan tools are necessary for diagnostics, if an apology is warranted, it should come from the repetitive transmission and engine flush / snake oil product infomercials, they get old after the first flush.

    • @mod_incllc3235
      @mod_incllc3235 Год назад +2

      @@IR-nq4qv but he always say's "not a sponsor" when using said products.

    • @IR-nq4qv
      @IR-nq4qv Год назад +1

      you don't get to have a legit response to an opinion when you use "always" and "said products" in the same sentence. You must know what products that I'm referring to as I never mentioned the name in my previous post otherwise you wouldn't have coined the phrase ''said products'' .With that..,
      It seems you're in denial, you dozed off or weren't paying close attention to the BG thumb nails and the hash tag BG product name used in past brake fluid, engine oil, transmission flush / repair videos and video title descriptions.
      There's nothing worse than someone coming along and trying to steal your eyesight and intelligence at the same time....
      I don't care, it's none of my business if Ray uses Crisco or Corn oil, I don't care if he's a sponsor or not, that's his prerogative.
      Can't a viewer honestly express himself to say he isn't into mundane repetitive flush videos highlighting the same products that look very similar and take on the feel like infomercials?
      How many flush videos are too many?????
      You don't have to give up honest opinions to subscribe to channels you like
      @@mod_incllc3235

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад +1

      ​@@IR-nq4qvyeah...there's flushing going even at Mc Donalds.🤧

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад

      And how many cereals in the grocery store? Cocoa puffs or frosted Luck Charms.

  • @ED-ti5tc
    @ED-ti5tc Год назад +66

    Another reason why i tune in for Ray's repairs! Always learning something!

    • @FourSeasonsNorth4x4
      @FourSeasonsNorth4x4 Год назад +3

      Ray, Eric and Paul…(plus a few others)…not always or necessarily in that order. 😉😁

    • @bengt-ericdahl3322
      @bengt-ericdahl3322 3 месяца назад +1

      I agree with You.

    • @pjrichie2551
      @pjrichie2551 2 месяца назад +1

      Almost every time I learn something also! good vid Ray, didn't mind being in the scan tool at all!

  • @williamdawson3353
    @williamdawson3353 Год назад +78

    This is how we know you guys have a wonderful marriage. Getting under a running truck while your spouse is switching between forward and reverse is just awesome.

    • @mikeyhau
      @mikeyhau Год назад +1

      Not that I don't trust your wife, but I'd chock the wheels. Belt and braces save lives.

    • @quietsignal
      @quietsignal Год назад +5

      He doesn’t have any life insurance😂😂😂

    • @louietramposch4559
      @louietramposch4559 Год назад +1

      Wife unit 👽🤓🎬

    • @maxwellsilver3115
      @maxwellsilver3115 Год назад +1

      But she knew there was a camera rolling 🤨

  • @daniellaughlin9726
    @daniellaughlin9726 Год назад +71

    I get much more out of a diag. videos than just turning wrench videos. Thank you for all your hard work.

    • @GARDENER42
      @GARDENER42 Год назад +5

      Aye, the diagnoses are the most engaging parts for me, especially when they're real puzzlers like this one.

    • @dawsondetrana5496
      @dawsondetrana5496 Год назад +1

      I agree

    • @theronwolf3296
      @theronwolf3296 Год назад +4

      I agree. The value of these videos is that share thought process as opposed to 'how to do it'. I learn a lot even when the vehicles are quite different from mine.

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад

      I think being all day long on the 'tire machine' is the Real "go to" video 🤗

    • @davepoling3049
      @davepoling3049 Год назад

      ​@@theronwolf32963q+

  • @charlessmarr7107
    @charlessmarr7107 Год назад +13

    Since I am mostly an old school mechanic these trips into the controls, inputs and outputs of the Great Black Box are very enlightening to me. Especially your unique ability to translate the data into real world observations.

  • @wboyd33
    @wboyd33 Год назад +70

    You go Troy!!! Give those walls hell & make the shop shine like no other person can!!! You're doing an awesome job...please keep it up!

    • @throttlebottle5906
      @throttlebottle5906 Год назад +7

      poor fella(real trooper) Troy is. I say move everything 1/3rd of shop over and use pressure washer, after soaking with good degreaser. yes it will make a huge mist cloud and cover everything, so cheap plastic(painters drops) will be great.

    • @michaelpressman7203
      @michaelpressman7203 Год назад +2

      And Maya too!🎉

    • @dcbacon1
      @dcbacon1 Год назад +2

      I really like Troy, he stays humble enough to encourage Ray to teach him all he can, but appears sharp enough to show he appreciates the association. Please stay with Ray for a long time...

    • @josepherhardt164
      @josepherhardt164 Год назад

      Actually, in a shop where the boss buys brake clean by the gross, why are you expending this much effort? ;)

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад

      Well who cleans the bathroom(s)? Maybe the Snap-on tool guy?

  • @albertjohnson8108
    @albertjohnson8108 Год назад +11

    I get the videos with scan tools may not be the greatest for everyone. But it definetly lets any of us take the opportunity of seeing how you use the scan tool as an actual tool to eliminate and potentially solve problems!
    Great video. Helps me and everyone else see how to surf on a scanning device rather than getting lost in the numbers.

  • @danielweilert
    @danielweilert Год назад +17

    Troubleshooting is an art form in and of itself. If you have to eventually fire the parts cannon it helps to know which way to point the cannon. Kudos Ray!!!

    • @ChristopherEisele
      @ChristopherEisele Год назад +1

      When it is the right part, it isn't trally the parts cannon.

  • @richardaston6361
    @richardaston6361 Год назад +21

    I do like the in depth scan tool video's 👍

  • @patrickphelan3676
    @patrickphelan3676 Год назад +13

    Hi Ray, the temperature thing for aircraft has to do with Density Altitude; which directly affects the performance parameters of any aircraft. The higher the temperature, the "thinner" the air or DA. The DA is critical for aircraft during emergencies of reduced power, like an engine failure during take-off. Each aircraft has a specific chart for calculation.

    • @ko9446
      @ko9446 Год назад +5

      And avionics don’t like high heat. Been stuck a few times on the ground with high heat

    • @LeverPhile
      @LeverPhile Год назад +2

      "Thinner" air means less lift and the need for faster take off & landing speeds, which means longer runways needed ...

  • @johndesaavedra1040
    @johndesaavedra1040 Год назад +14

    Being of a similar troubleshooting mindset, I followed your deductive process. This is why I follow your channel. I saw the MAF as the potential object once you deducted every other possible factor affecting misfires. I doubted the MAF it too, but noting was left. Thanks for taking us through this journey. All the best to your family and to your company.

    • @i.fishtank
      @i.fishtank Год назад +1

      When you started this video, I thought MAP or MAF, I've had the dreaded P0300 and P0200 on my Peugeot 206 for a good while now, the P0200 was a faulty knock sensor and i've just placed the MAP sensor as the fault..... 2 hours poking and prodding.... try 2 months Ray ! (Amateur DIY mechanic who stripped out the whole throttle body, wiring loom and replaced pretty much everything apart from the Wife Unit)

  • @Andrew-ep4kw
    @Andrew-ep4kw Год назад +103

    2:57 Troy is not afraid of crappy tedious work. This guy is a keeper.

    • @carlmaruyama6863
      @carlmaruyama6863 Год назад +22

      I think everybody has a better attitude when working in a clean and organized environment. I have noticed since Troy has been working, the shop is organized.

    • @forgetfulme1719
      @forgetfulme1719 Год назад +7

      means business slow.

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад +2

      'We don't pay him much"....

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад +2

      Why not weld the ground connections😁 Melt rust and dirt together🎉🎉

    • @DonsJunkmail-vg1wt
      @DonsJunkmail-vg1wt Год назад +1

      So how much more do you pay in taxes for a cleaner gasoline??🤔

  • @weirdwillie
    @weirdwillie Год назад +5

    Ray don't apologize for being on the scan tool most of time. U probably helped a lot of people now and in the future who might run into the same problem with there vehicle. Awesome video.

  • @module79l28
    @module79l28 Год назад +108

    But the million dollar question is: did you tighten the clamps on both sides of the MAF sensor when you finished the job, Ray? Because apparently you went on the test drive with them loose.

    • @CH-oi1dz
      @CH-oi1dz Год назад +10

      I saw that too but he did he like to keep us on your toes

    • @joesilverbliss1721
      @joesilverbliss1721 Год назад +5

      Me too. He probably checked it later

    • @fishflash1
      @fishflash1 Год назад +7

      Just a guess, if they weren't tight, the readings wouldn't look so good.

    • @SiblingCreature
      @SiblingCreature Год назад +11

      There was a jump cut right before that test drive, which I'm pretty sure is when he recorded that bit at the beginning with the air gun, so I think it's fair to say he tightened the clamps in that short period "when [we] weren't looking" as Ray likes to say. 🙂

    • @572Btriode
      @572Btriode Год назад +8

      Yep, the downstream clip wasn't seen to be tightened and it's really doing my OCD. . . . . . .
      I would also have binned those Bosch (made in India) plugs, couldn't care if they're new or old, they have a zero reputation in Europe, NGK are the general go-to.

  • @boblemon2103
    @boblemon2103 Год назад +6

    You don’t need to parts cannon the mass airflow, just unplug it and then it uses some default values, probably would have shown no misfires and then you know you need a new one.

    • @craigsparton
      @craigsparton Год назад

      It didn't need a new one, this did not fix the vehicle. Notice how he took it on a test drive and warmed it up before checking for misfires again? You'd never do that unless you wanted to skew the results. You'd immediately check it in the same conditions.

  • @Conservativetruckeraz
    @Conservativetruckeraz Год назад +16

    The amount of integrity you have makes you one of the best mechanics out there. I'm sure most big shops would have just said to replace the coils you actually take the time to fully check and make sure what needs done.

    • @CameronDC-Grimes
      @CameronDC-Grimes Год назад +2

      Most shops have a 25min Diag limit. Then they ask if customer wants to pay for Diag, most don't because they charge $130-$150 for just looking at it.
      Then the bill is usually above $800. They only give the master technician 20% of the customer cost. Shop takes in 60-70%
      If they say yes charge me $800+ then they allow 2hrs. Which is what Ray did at the start without the charge.
      A professional master tech with extensive electrical knowledge would have done the following:
      Logical Diag Procedure for Misfireing Cylinders:
      1. Mode 3 = Check DTCs take a snapshot or jot down, dont clear them!
      2. Mode 7 = Check Pending Codes, snapshot don't clear anything!
      3. Mode 10 = permanent codes.
      4. Mode 2 = Check Freeze frame data. Freeze Frame Data is the operating conditions recorded at the exact time the ECM lit the MIL check engine light.
      5. Research procedures of changing electric components and integral parts. There can be specific order and requirements.
      6. Read TSB's related to coils, injectors, plugs, engine compression, ECM. Replace or update the TSB component.
      • Notify your client of any TSB's and explain the potential dangers of not fixing the issue, possible cost of repairs.
      If the customer accepts cost of repairs, perform all repairs in a timely manner that matches with book and service protocol by repair manual.
      • If none of that worked you use a oscilloscope with low amp clamp probe after checking all wiring diagrams, hook up to ignition coils and fuel injectors usually from fuse relay, one usually powers the coils separately and another powers injectors. The coils should show a burst, collapse and secondary jump and oscillation after the primary winding collapse charges the secondary winding in coils, it will match timing with injectors amp and voltage surge/drop and collapse in the same millisecond timeframe

    • @lupinesithlord1693
      @lupinesithlord1693 Год назад +1

      Wish you were In The cleveland area

    • @CameronDC-Grimes
      @CameronDC-Grimes Год назад

      @@lupinesithlord1693 get a digital multimeter $15, Digital DC Clamp Meter that measures low Amp in mA it just clamps around a wire and measures amperage in that circuit like fuel injectors. Those can be as cheap as $50.
      A compression test kit is just $30 and it has a rubber side that you put in place of a spark plug and it measures cylinder compression, you do each cylinder while cranking engine, make sure all of them are 20psi from each other let's say all are 110psi and one is 170psi that's over 20% , there are tutorials for compression test on RUclips.
      Testing fuel injectors is done with oscilloscope and low amp clamp with a back probe (a pin that connects on multimeter leads that you insert into the connector pin of the power wire for injectors. Scopes read in hundreds thousandths milliseconds while multimeters only read 500ms so multimeters can fail to detect some misfire problems in injectors and coils.
      Look up wiring diagram for your year, make, model on the ignition coils and injectors.
      4 pillars of engine problems (misfires as well):
      1. Engine Mechanical Condition = specifically the engines ability to compress the air charge and seal the combustion chamber.
      2. Engines ability to breath AKA Volumetric Efficiency: this encompasses any condition that prevents air getting in and out of the cylinders.
      3. Ignition = Ignition coils and Plugs. Covers everything about delivering a strong spark at the right time.
      4. Fuel = this cover's not only fuel delivery but proper fuel mixture. Delivered cleanly and at the right time through injectors and into the combustion chambers at the right spray speed and pressure.
      These are the tests needed:
      • Swap Coils, check spark plugs visually.
      • Do cylinder compression test, anyone can do this if you can remove spark plugs, look up a engine firing sequence diagram on Google, it will show the engine orientation and which spark plug is which # cylinder. This will help you identify which cylinder is misfiring and what plug needs to be replaced and what coil to swap and what cylinder to watch for on compression test.
      • VE test(volumetric efficiency test) for engine breathing.
      • Spark plug tester.
      • 14.7:1 ratio of Air:Fuel test, check MAP, MAF sensor and O2 sensor with fuel trim long term vs short term on scan tool.
      • low pressure guage for fuel injectors
      • injector balance test or look at fuel trims "injector test"

    • @neilmurphy845
      @neilmurphy845 Год назад +1

      ​​@@CameronDC-GrimesThat sounds like exactly what Ivan would do and him and Eric are very good at finding the problem.

  • @edwardcarberry1095
    @edwardcarberry1095 Год назад +10

    Ray, your very good at what you do! Please don't change.
    We watch you because of that!

  • @pud469
    @pud469 Год назад +6

    A toothbrush with some spray works really well for throttle body cleaning. The stiffer the bristle the better, but i typically use which tooth brush needs to be replaced first at home.

  • @mishahendriks3020
    @mishahendriks3020 Год назад +8

    Maybe install some sort of exhaust extraction apparatus/hose so as to prevent (as much as possible) re-grime of the walls? Especially when the car is backed into the shop? Can’t wait to see the shop going to a new level! Good luck!
    Nice diag, not really a parts canon, as you only fired one shot. Based on diag. 👍🏼

    • @bradhaines3142
      @bradhaines3142 Год назад +1

      not likely to help with doors wide open all day. itd likely be best to make it a yearly holiday project to just do a whole shop pressure washing

    • @russellstyles5381
      @russellstyles5381 Год назад

      @@bradhaines3142 This shop is small enough to make this pointless in warm weather, but a good exhaust extraction system might allow heat in winter. Assuming you ever have cold weather there. Hey it does happen, 8 or 9 times a decade.

  • @RT1599
    @RT1599 Год назад +2

    P0300 Suck..every once in awhile just gotta load the ball in the cannon and light the wick!!!!! Enjoy the videos, keep em coming!!

  • @MrCliverlong
    @MrCliverlong Год назад +7

    Respect to Troy for digging into the less glamorous job but are so important for a decent working environment. He's a gem.

  • @scottdowney4318
    @scottdowney4318 Год назад +4

    I would have tried MAF cleaner. The 3 little sensor resistors can get a dirt buildup. I also hate buying parts unless I try everything first. Pretty smart of you to consider the MAF, which does have an effect on misfires. I have even used a light very soft brush on those before which your told not to do as they can break.

  • @legogummybear5
    @legogummybear5 Год назад +22

    It is what it is Ray. If we didn't enjoy it we wouldn't watch :-)

  • @bearpuf
    @bearpuf Год назад +6

    Hi Ray. This video was completely mesmerizing to me for you rethinking what the cylinder misfiring issue was everytime you went through a procedure and it failied. Finding it to be a faulty MAF sensor surprised me as well.
    One of the many things that makes your channel special is that you make the continual effort to share the dead ends to solving a problem and when you make a mistake on your end you don't delete it. I admire you for that, and as I've mentioned before, it builds my own confidence as I'm sure it does for others. Thanks for the terrific ride today.

  • @xunheilvsnipezx3324
    @xunheilvsnipezx3324 Год назад +3

    Not for nothing but i was having the same issue with my 05 Tahoe 5.3..... The fix new knock sensors and a valley cover. My scan tool registered misfires on my scan tool but disnt feel the enging lug, jump, sputter, no physical indication... So i popped the intake and took a look at the knock sensors.... Rust city, so badly i ordered a new valley cover and gasket to remove the corrosion i couldnt see, once replaced the misfires dissapeared.

    • @xunheilvsnipezx3324
      @xunheilvsnipezx3324 Год назад +1

      Also not for nothing, i see lots of new parts everywhere on that vehicle, If it isnt US, Canada, or mexico AC delco, or GM original the parts may be broken, new from china.

  • @peasmold1234
    @peasmold1234 Год назад +7

    That was outstanding work Ray, I've learned so much about using scan tools, (I'm a long retired uk mechanic) never had scanners in my day, a good ear was important then.

    • @peasmold1234
      @peasmold1234 Год назад

      Neither are mine now :)@@peten8767

  • @davidp7163
    @davidp7163 Год назад +4

    Great video Ray!
    I really enjoy the head scratchers, sitting here trying to think along with you what it may or may not be. Have to say, didn’t see the MAF being the cause. Great trigger pull. Good Job!

  • @ronhall9040
    @ronhall9040 Год назад +1

    don't apologize for hang'n out in "scan tool" land...I'd rather see vids like this that baffle even good mechanics/diagnostians

  • @RukarioEnterprisesLLC
    @RukarioEnterprisesLLC Год назад +4

    Here's a few things to point out.
    Vehicles way above 2000s (1990s I do think also) have a few extra parts called Crankshaft Position sensor and Camshaft Position Sensor.
    In my 2011 Sonata, before the Check Engine Light came on, it had a misfire, so we checked it out and it was the Spark Plugs and CPS.
    A ready-to-fail Crankshaft Position Sensor could be the culprit.

  • @jsh6952
    @jsh6952 Год назад +2

    Those GM driveshafts suffer from an oversized bore for the splines, that lets the splines wear out and get sloppy.
    Eric O just loves redoing grounds, especially on Jeeps and Rams.

  • @grahamcockerill2406
    @grahamcockerill2406 Год назад +14

    It's great to be able to understand how the scan tools operate and to remedy a problem. Thanks Ray. Aussie Graham

  • @dond.200
    @dond.200 Год назад +6

    Troy seems to be more comfortable working along side you on the videos. He also seems to help keep your shop more organized.

  • @Rekuzan
    @Rekuzan Год назад +3

    RAY!! DON'T FORGET!!! Every time you turn the key on, the PCM flashes the sensor elements inside the MAF really quickly to burn off any contaminants on the elements present, and this does cause them to wear out over time, and the sensor just gets lazy.

  • @colestowing8695
    @colestowing8695 Год назад +4

    much as i hate the "parts cannon" method, sometimes you gotta go with what experience tells you and take a risk. I might have tried a quick clean of the mass air but "replace with a known good unit" is an option for a reason. I definitely agree with getting the oe part though, cheap parts are f'ing garbage these days (I've gone down some rabbit holes trying to diag problems with brand new parts that are worse than what they replaced-I won't do it anymore)

    • @howiej4084
      @howiej4084 Год назад +1

      I agree. There is a time and a place for everything, even the parts cannon.
      That being said, I kept my old ride. So the parts cannon is really a swaperoo cannon.

    • @colestowing8695
      @colestowing8695 Год назад +1

      @@howiej4084 good for you, keep that old rig going!

  • @ahoytheremate1954
    @ahoytheremate1954 Год назад +3

    Ray i had 2 air cons in my kenworth road train and 2 compressors because of the heat in the centre of aussie in summer about 50c in summer

  • @natersalad889
    @natersalad889 Год назад +2

    MAF grams per second should = 1.0-1.1 gpm per liter of engine displacement. So a 6.0L should read 6-6.6 gpm at idle warmed up, with all loads off. Yes it can be say 5.8-6.8 gpm and still be ok but not more than that, and this little bit of deviation is usually caused by idle not all the way down yet from not being warmed up all the way, or cooling fans on causing a slight load, etc, etc.I've used this technique learned in my engine performance class I'm college years ago and has proven accurate basically every time.. also say an none whole number engine size hss to be exact too, not rounded. a 4.3L would be 4.3×1.0 and 4.3x 1.1= so 4.3gpm to 4.7gpm would be an acceptable range.

    • @mattcat231
      @mattcat231 Год назад

      Yes, exactly this! Only time I find this method slightly inaccurate is when the engine is in the 1 liter range, (eg the 1.3 in the ford ecosport) where I still get over 2 grams, unless you know a formula for the smaller engines im all ears and ready to learn

  • @mtn.homeforge351
    @mtn.homeforge351 Год назад +5

    Thank you Ray. I learned something today. Please keep up the great videos.

  • @BlackCloud82
    @BlackCloud82 Год назад +1

    Ray, I would hope you were laying front to back so that should the truck take off you wouldn't get run over by a wheel; particularly with someone changing gears while you are a laying/lying target.

  • @darkerbinding6933
    @darkerbinding6933 Год назад +3

    Congrats on being able to avoid that Rusty ground bolt on the engine block!! 🤣

  • @AntonioClaudioMichael
    @AntonioClaudioMichael Год назад +1

    Great video Ray Definitely got me thinking trying to figure out the issue which was strange looks like maf under or over reporting was the issue with the random misfires look forward to the next video @Rainman Ray's Repairs

  • @joseramonvargasgonzalez3042
    @joseramonvargasgonzalez3042 Год назад +3

    Have a nice Sunday.First😊

  • @classact9557
    @classact9557 Год назад +2

    Ray went all Pulp Fiction on that Silvery-Raido!!!! “Say P300 again!!! I dare you, I double-dare you!!!!”

  • @davidpederson2905
    @davidpederson2905 Год назад +5

    I really liked the attention given to grounds. So easy to overlook. My standard for parts canon: not really firing the parts cannon until the windshield washer cap has been replaced ... for the second time.

    • @larrybe2900
      @larrybe2900 Год назад

      Unless he did the first ground he showed us off camera or didn't share the work with us he did not do what I feel is an important part. Just deferring to the brain side of the equation grounds does not fully deal with the ground matter. I can think of another variable even if the vehicle starts and that is the strength of the battery.

    • @Bellboy40
      @Bellboy40 Год назад

      @@larrybe2900 He explained later in the video what he did about that first ground he was looking at. He bypassed it with another test wire to a good ground and it didn't fix his problem.

  • @jimsix9929
    @jimsix9929 Год назад +2

    yea the airflow sensors on gm trucks can give you misfire codes or lean mixture codes, cleaning them will help some but I only use that to diagnose that that is the problem, you did the right thing by replacing it

  • @MarzNet256
    @MarzNet256 Год назад +3

    I think cleaning the TB is always an excellent idea before instaliing a new (or cleaned) MAF sensor.

  • @hass1337
    @hass1337 Год назад +1

    Heya,Ray here in saudi it’s around 120 on a daily when it’s summer and the only cars that have REALLY cold acs are the Toyota/Lexus and the Germans granted with quality window tints and parked in a shade

  • @dowh9577
    @dowh9577 Год назад +5

    As someone who is trying to master my own prosumer scan tool, I get a lot out of observing how you collect and interpret the data it provides. Your analysis gives me ideas, even though the UI is different.

    • @Pointlesschan
      @Pointlesschan Год назад

      Do you watch south main auto? His use of the scan tool is great also

  • @caymanchristopher7014
    @caymanchristopher7014 Год назад +3

    You reaaaly trust your wife.

  • @bradleyrorabaugh7764
    @bradleyrorabaugh7764 Год назад +5

    Hey Ray love the videos keep up the work. I had a random misfire that took me a while on a chevy ended up being a intake gaskets. Still finishing the video 😂

  • @michaelanderson8010
    @michaelanderson8010 Год назад +3

    Great video Ray. I enjoyed that, your determination paid off!!👍👍👍

  • @oldcynic6964
    @oldcynic6964 Год назад +1

    I would have put grease or fluid film over those earths that you cleaned up. I've lived in a "rusty" environment !

  • @LilYeshua
    @LilYeshua Год назад +2

    Back in the late seventies and early eighties at my service station job,part of my boss's customer base were little elderly widows who had primo examples of sixties cars that had extremely low mileage and parked under their car ports meaning that they looked practically new. It was my turn to run the station as I and my boss would take turns working every other Sunday,we had one of these widows cars in the work bay for service. It was summer and hot so I started it's engine, raised the hood,put a shop fan in front of the radiator,and turned on the AC. So,in between customers I would get in the car and enjoyed the 23 degree Fahrenheit cold air coming out of the dashboard vents.
    Yeah, you're right,they don't make AC systems like they used to.

  • @imfloridano5448
    @imfloridano5448 Год назад +1

    Ray never trust those Bosch spark plugs. I had a 95 LT1 350 5.7 Trans Am that I replaced the AC Delco platinum plufs with sum Bosch's platinum plugs and they kept miss firing. I replaced with AC Delco and issues went away. They appeared fine from the exterior but sumtin internal was bad on them.

  • @billmurray4895
    @billmurray4895 Год назад +3

    Ray, have you thought about using dialect grease on these grounds? I use it where corrosion is a concern.

  • @paulirvine6336
    @paulirvine6336 Год назад +2

    thats unconditional love ray the girl did not run you over 😂😂🤣

  • @badassbiker1974
    @badassbiker1974 Год назад +4

    Good day to you, Ray!
    Don't worry about this being a scan tool video. It's good to see how your mind thinks during the diagnostic process when faced with a more challenging problem.
    I commend you on this one. You stuck with it, a bit of trial and error, and got to the root issue!
    Well done! 👍 👍

  • @leonardpeters3266
    @leonardpeters3266 Год назад +1

    You would have been proud of me yesterday Ray. My wife and I tore the dashboard out of our Crown Vic and replaced the blend door actuator. I hurt a little this morning. But it worked and it's all back together, 7 hours (with a couple of breaks). Ugly job.

  • @johndernberger1961
    @johndernberger1961 Год назад +4

    Great diagnostic journey! Thx for sharing

  • @Larry_Harvilla
    @Larry_Harvilla Год назад +1

    Regarding the aviation stuff, it's not landing that is ever the issue in extreme heat. The real problem is taking off. Hot air is less dense (fewer molecules per unit of volume), which provides less lift for a given airspeed and wing angle of attack and also reduces the thrust a turbofan engine can produce at a given fuel burn rate.
    As Ray alluded to but only partially fleshed out, the worst-affected aircraft have been the ones that are the farthest behind the power curve. The Boeing 737 tops that list, as the 737 can't get out of its own way, let alone anybody else's way. Ray did, however, correctly identify the 757 as being very powerful for its weight, and the 757 has been an important part of the airlines' adaptation to the heat for exactly that reason. (While heavier than a 737, the 757 is still light enough that it does not require the "heavy" appellation (e.g., "Delta 47 heavy") in conversation with air traffic control.)

  • @matthewsykes4814
    @matthewsykes4814 Год назад +5

    I've been there myself hunting out a fault a long time ago on something a lot more complex. Did the same as you, found out as much as I could that was working properly before spotting something that looked wrong. It was a badly repaired cable in the end. I still remember doubting myself all the time until I got the root cause.
    Like you I didn't give up.
    Great work as always Ray. You are a credit to your profession and it's great to see your lot so full of cars waiting to be fixed.

  • @Dysl3xicDog
    @Dysl3xicDog Год назад +1

    Old GM injectors. I have this same issue on my 2000 5.3L still poking at things and injectors were highly recommended.

  • @Estranged180
    @Estranged180 Год назад +3

    Nice catch, Ray. It's funny how a minor fault in the mass airflow can affect fuel trim so minorly, that it causes major malfunctions that throw people into a spiral of what's not wrong with it. It's also funny that when that minor fault is not quite identified, but shot down with a parts cannon that rectifies the rest. Then there's the feeling that you threatened the engine with an airgun over a P0300.

  • @JohnSmith-lw2bm
    @JohnSmith-lw2bm Год назад +1

    I think we all learned about fuel trims. Most of us didn’t already know.

  • @cranefly23
    @cranefly23 Год назад +3

    An excellent and fascinating bit of detective work there! Well done, Ray. 👍

  • @miiiikeeed
    @miiiikeeed Год назад +1

    Comment on aircraft not being able to land is actually not being able to take off due to heat and it`s nothing new so don`t blame this on global warming. As heat increases air becomes thinner. How this affects aircraft. 1. Engines. thinner air decreases compression ratios in engine which decreases thrust. 2. Aircraft, Thinner air decreases lift of the wings. What do airlines due.1, Swap aircraft with better heat and altitude performing aircraft. 2.block seats (Remove passengers). When you get on an aircraft and see it`s not a full flight in the summertime it`s normally due to the ambient temperature outside. Airlines would rather inconvenience a passenger and NOT remove cargo because they make more money on cargo then a passenger.

  • @kevincurry4735
    @kevincurry4735 Год назад +3

    Good day Ray. Thank you for all the videos that you put out. Your diagnostic ability is awesome. You Sir have a great Sunday.

  • @davidray9504
    @davidray9504 Год назад +1

    Ray I enjoy watching your videos! I'm currently having the dreaded p0300 and this video gave me somethings to look at and to know what it's not. I'm thinking that one of the sensors is having an issue because it stalls and will crank but not start sometimes.

  • @bryannikkila9751
    @bryannikkila9751 Год назад +3

    Good morning from Higgins lake Michigan

  • @AntonioClaudioMichael
    @AntonioClaudioMichael Год назад +1

    Makes me think the maf is under or over reporting or the Tps is Not reportingnthe throttle accurately @Rainman Ray's Repairs

  • @donalddrake6512
    @donalddrake6512 Год назад +17

    Amazes me how just a simple replace on the mass airflow sensor can have such an effect on an engine.
    I felt your frustration Ray and your elation at the end.
    That's what I love about your videos.

  • @AntonioClaudioMichael
    @AntonioClaudioMichael Год назад +1

    Very intriguing Issue for this Silverado 🤔 make me think engine ground being so bad is the main issue @Rainman Ray's Repairs

  • @JBreeze4598
    @JBreeze4598 Год назад +10

    Great work on the walls Troy, your hard work is adding more LUMMINS!! Good job on the Gremlin Code hunt!!

  • @AKChryslertech
    @AKChryslertech Год назад +1

    Ray, when you check the tps position on the Apollo, there is a refresh delay. You need a labscope to see what it is doing in real time. Being a shop owner now, you need to think about a labscope. I switched my Apollo for a Triton and havent looked back. Apollo is a great tool, but you need more than what that thing is capable of.

  • @tomredmond
    @tomredmond Год назад +3

    A good diagnostics video is always welcomed here.

  • @bobbg9041
    @bobbg9041 Год назад +1

    51:49 map sensor, why not someone else parts canned everything else and didnt hit anything, but even if its fixed at 120k miles id chage all the coils and run seafoam in the intake it couldn't hurt and it would probably get better gas mileage.
    The coils as prevention let him keep the old units these electronic coils do go bad and when they do the motors run really bad if the owner dosnt fix it right away it can do serious dammage to the motor.
    Your only looking at about 100 bucks in parts give or take not sure about gm products
    Toyotas cost an arm and a leg for just 4.

  • @markraday8071
    @markraday8071 Год назад +4

    Good morning Ray, outstanding video! Say hello to your wife unit and Troy.
    The process of elimination was outstanding! Just like the title of the video, you need to find out what it's not, to get to what it is.
    Your scan tool is badass as well as your ability to use it.
    The entire video was very entertaining 😁. Say hi to the wife unit and Troy and don't forget to have a great day and stay cool 😁.

    • @mod_incllc3235
      @mod_incllc3235 Год назад +1

      his scan tool is your standard bi-directional . which is why all of us with similar scan tools get so much out of this type of diagnostics. Only thing that would bring it to the next level would be Scope diagnostics. He probably would have gotten to the same result in less than half the time if he would of used something like a pico scope. But there's more than one way to skin a cat.

  • @Patriot-bn9om
    @Patriot-bn9om Год назад +2

    Thanks Ray, this is very useful. I have a Silverado almost identical to that one and around the same mileage. If/when I get a P0300 and misfires, I'll go straight to replacing the MAF sensor.

    • @ORRadtech
      @ORRadtech Год назад +1

      MAF is something to keep in mind but it's far from the most common problem. You really need to follow a logical troubleshooting regime just as Ray did. The MAF was his LAST stop, not his first, because there are so many other things that are much more likely. The parts cannon should be your last option not your first.

  • @robertsensabaugh5785
    @robertsensabaugh5785 Год назад +3

    Ray, thanks for showing us that misfires don't always have to do with ignition parts and that should not just assume that's the problem

    • @dback68
      @dback68 Год назад

      In my opinion, this is why "parts store" error code readings can be somewhat dishonest for the end user. I can guarantee that any major chain store would have sold a whole set of wires, plugs, and coils and the customer would have still been at square one.

  • @AntonioClaudioMichael
    @AntonioClaudioMichael Год назад +1

    How bad is the coaking in the Throttle body? @Rainman Ray's Repairs

  • @phillipw2493
    @phillipw2493 Год назад +3

    The perils of intermittent problems good job and way to go Ray😊

  • @cooksnj
    @cooksnj Год назад +1

    It’s kind of surprising how many new parts don’t work correctly. Very sad, such a waste of time.

  • @EWarnerJr
    @EWarnerJr Год назад +3

    Morning to you too

  • @johnmarino4085
    @johnmarino4085 Год назад +1

    Crossing my I and dotting my T --words !

  • @miwa4783
    @miwa4783 Год назад +3

    Thought Troy was hired as a mechanic and not a cleaning assistant🤔

    • @Gary_in_NoVA
      @Gary_in_NoVA Год назад

      As long as it isn’t a regular thing, and Troy is getting his full pay, I bet he doesn’t mind a bit. It probably is a nice break from doing grungy brake pad jobs all day. When I was Troy’s age, it was a good day when my boss had me go out and shovel snow (I’m up North, obviously) or rake leaves.

    • @aderi31415
      @aderi31415 Год назад

      In a video a few weeks ago, Ray specifically mentioned that cleaning and organizing were in Troy's job description. Over the years, we've seen that Ray can't really be bothered with it.

  • @Neeko_110
    @Neeko_110 Год назад +1

    The taddle tail was the staining on the maf screen... i would bet money thats salt residue ...maf works by heating the wire and calculating by the air temp how fast the wire cools ....the wire has corrosion on it giving it false readings .....

  • @darrelladams4188
    @darrelladams4188 Год назад +3

    For trying to clean the shop panels….. try a good degrease ( like restaurant degrease ) or oven cleaner.. YES GLOVES would be a must

    • @jsh6952
      @jsh6952 Год назад

      Simple Green or Awesome Orange will do the job.

    • @OUTLAWBBQ
      @OUTLAWBBQ Год назад

      ATF will make it shinny. Cleans my tools up to brand new looking.

  • @pedrorivera1459
    @pedrorivera1459 Год назад +1

    Great video I learn a lot from you , may God give more wisdom in Jesus name. Blessing from Houston,Texas Texas

  • @bradhaines3142
    @bradhaines3142 Год назад +3

    when the boss gets right there next to you and starts cleaning, you know you have a good boss. hope you guys mention how much the cleaning helps so he doesnt get too miserable with the low tier labor

    • @gridlore
      @gridlore Год назад

      Ray appears to be a supportive mentor in every way, so I'm sure Troy is getting positive reinforcement on the drudgery tasks involved with running a shop. It's all training to do things right. He's probably learning to be a service writer off-camera.

  • @KennyBaltz
    @KennyBaltz Год назад +2

    Ray, I will bet if that truck had gone into a Chevy dealer for that P 0300 code, they would have changed, plugs, wires, coils, and no telling what else. It would have cost $2 to $3,000. He would have gotten it back with the miss still there and some crazy reason for the miss. Great job Ray. You looked at all the data and went after the one thing that was very slightly askew. That truck is very lucky to have rolled into your shop for repairs! You keep wrenching and we will keep watching! ❤
    -KB Chesterfield VA.

    • @1776Americanpyro
      @1776Americanpyro 8 месяцев назад

      Usually what I've came across is pressure cleaning injectors for po 300 but I'm in a colder climate area. Lean codes for the platinum melting. Any mass air problem I came across would stumble on acceleration. I was able to clean them usually and they failed because of cheap after market air filters. Don't know what chevy dealership throw parts at vehicles but that didn't happen at our facility. Retired from it awhile ago don't miss the flat rate warranty.

  • @richardsmith2721
    @richardsmith2721 Год назад +4

    Did you see the Ferrari plant? They have skylights for natural light and greenspace with plants and trees.

  • @miketrimberger7686
    @miketrimberger7686 Год назад +2

    Give Troy a bonus for cleaning those grody walls!

  • @getonlygotonly
    @getonlygotonly Год назад +3

    its great that you explain how to do specific repairs and you have the experience and knowledge to do things properly as there are so many hacks here on RUclips that dont have a clue what they are doing and want to try to teach others with a pair of vise grips, some priers and a big shade tree

  • @edwardcarberry1095
    @edwardcarberry1095 Год назад +1

    Did I make the comment or just think the comment it should have been pressure washed before you moved in??

  • @brandynstieger4786
    @brandynstieger4786 Год назад +4

    Them p300 man got to love them 😂

  • @lexalford358
    @lexalford358 Год назад +1

    And now we know why so many use the part’s canono to diagnose the problem they are to lazy and usually end up swapping parts until they find the problem anyway so why not swap out everything and see what works unless they have to pay for it all

  • @hmccall3
    @hmccall3 Год назад +5

    You're right about the heat Ray. Here in the Piney Woods of East Texas, it's supposed to be 103 today with a heat index of 111! Thanks for the great content and stay hydrated!

  • @paulmoffat9306
    @paulmoffat9306 Год назад +1

    I took care of some corroded body grounds as you did here, but I added some copper no-sieze to the joint - seemed to do the job (I had no further issues during the life of the car).

  • @TairnKA
    @TairnKA Год назад +1

    In this situation, "If all else fails, trust your hunches" and you did, based on your experience and skills you chose wisely and that issue has been resolved.
    Good work Ray (you should debrief Troy on this resolution?). ;-)

  • @seanwieland9763
    @seanwieland9763 Год назад +2

    2:53 lol, he’s thrilled to be doing literal side work. At least it’s paid work!

  • @StealthMode139
    @StealthMode139 Год назад +2

    Amazing Worx and Master of fastener Extraction. So Glad to be here. FL