2004 Chevy Truck A/C compressor does not engage part 2
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- Опубликовано: 10 окт 2017
- Here is a link to part 1 • 2004 Chevy Truck O2 Se...
In this video I will show you how to test an A/C compressor with an empty system and locate the leak. The air checks I have shown in the past do not work on this one. I had to use refrigerant and an electronic leak detector.
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Tools used
- TIF Instruments RX-1A Refrigerant Leak Detector
www.jbtoolsales.com/tif-instr...
- Meguiars M9911 Spray Bottle W/Sprayer
www.jbtoolsales.com/meguiars-...
- Mothers 05664 California Gold Car Wash 64 oz
www.jbtoolsales.com/mothers-0...
- Mastercool 85510 R-134a Can Tap Valve
www.jbtoolsales.com/mastercoo...
- ATD Tools 3695 Deluxe Dual Aluminum A/C Manifold Gauge Set
www.jbtoolsales.com/atd-tools...
- Big Larry Flashlight
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC. 
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its not the tools you own or the advanced technology of the tools. but the knowledge and skill of the tech. good job brother!
+1 on that. I've just fixed the AC on a pretty neglected (botched) Renault Trafic van.
Although there was no turn around from replacing the condenser, due to too many holes. With about 5 new O-rings added to the equation.
The fact is that it's up and running, literally revived from the dead after 5/6 years non working or so I've been told.
Aluminum tab broken on the compressor (welded). Clutch seized and not working, cleaned, repaired, back into service. Orifice tube cleaned back into service. Electrical side "not working" repaired and back into service.
But the "cherry on top" of all the mess that shouldn't have been done in there...
Somebody messed up the cabling and ended up switching the plug for the oil pressure switch, with the plug for the AC clutch. Yeah! that's a new one. LOL :-)
Whoever touched that had no idea of what they're doing so, along with that, went the fuse, cabling insulation, cable routing was all over the place. Main reason why they mixed it all up.
Either case it's done. AC tools used. Can of refrigerant, with basic single hose kit, compressed air, multimeter and a lot of diagnostic. ;-)
Cheers
I love the bloopers . Let's us know you are still human and makes it better for people like me who do this for a living to not think I'm just an angry person at times.
Despite being upset, you pulled through! Happy anniversary to you and your wife! That's great 20 yrs! 🤗😁
Thanks Cuba!
Hey my brother Paul.
What a blessing to have your son being a camera man for a wonderful person. God bless the Danner family.
Thanks Richard. God bless you too.
Excellent diagnostic on this one. I'm really getting better at understanding a/c systems thanks to you. Thanks and happy anniversary!
That's awesome and thank you!
Congrats on 20 years!!! :)
To anyone looking at the comments above this one, they are a scam to steal your instagram and facebook passwords. I'm in IT and I know this. Report The two comments from Zayd Mathew and Pawl Shawn. It's a scam.
I managed a small fleet. Everything we have besides three vehicles has AC. Vehicles and equipment. We don't have the room for a shop quality AC machine. So if I have to do AC work and evacuate a system it goes to the atmosphere. I hate to do it but it is what it is. Never thought of using air and soapy water to find leaks in an AC system. I learn something from your videos every time I watch. Happy anniversary to you and the Mrs. Just celebrated our sixth anniversary on the 8th this month.
nice! stay strong and stay together.
Great Job. I learn something every time I watch you troubleshoot.
Congrats on 20 years. I hope you had a good evening with your wife.
Thanks Fred Flintstone!
Happy wedding anniversary Paul...wishing you and your lovely wife the very best! I used compressed air very sucessfully in the past to find refrigerant leakage so for those who have a problem with this method guess what......no further comment.
Filling in the blanks.... Bite Me!.
I just did a 2002 Siliverado, turned our to be the condenser. Horrible Freight has a sniffer for $70 that worked well. I had to take the grill off to find the leak and R & R condensor, good work, keep them coming
Love your diagnostic videos. I've learned so much from them and have used some of the knowledge to troubleshoot my own vehicle successfully. Thanks for sharing your knowledge and putting out vids
Thanks so much! Come check out ScannerDanner Premium to watch all of my classroom lectures and for hundreds of other case studies. There is a 14 day free trial.
www.scannerdanner.com/join-scannerdanner-premium.html
Hope to see you there.
thanks for makin it real by getting pest off.... & not being an always happy tech.
finally some body with balls to show that on camera!!!
i get that way at times.
Happy anniversary! Above and beyond there you working in çruddy conditions. Your efforts are appreciated!
thanks Justin
Simple, easy. I don't have a problem you using air on a.c as you know what you're doing! I trust your judgement! Also, happy anniversary to you and Kris.
Love the bloopers in the end, made me laugh! :)
Thanks Josh!
Thank you for teaching us and dealing with BS on your Anniversary , Happy 20th and many more ! keep up the great content and I liked the extra's thrown in at the end !
Thanks man
Yes Sir !, I plan to have my own shop in the future and the Diagnostics are what keep me watching !
That's what I'm talking about MrBlazenBruce
You can still provide us with good videos, even when you're grumpy, that's quite something dude. Congrats on the anniversary bro'! Speaking about AC systems and how bad the damage can get, I've once seen one where the desicator's diafragme ruptured and all the silica gel cloged up the entire system: compresor, expansion valve, evaporator, condenser every thing.
Thanks so much! And what a nightmare that must have been
Congrats on 20 years.
Thanks Derrick
Nice job, Paul and congrats on 20 years. I know how you feel cuz i don't want to work any days.
Please do more bloopers on your vids! That was great, especially the for dinger!
No need to explain yourself Paul. People who don't think your "DA" man are parts changers. Cheers bro.
Joe Brito the Japanese are a bit questionable too...i did an evap core on a 09 prius. Omg what an ordeal . Did a heater core on a 02 jetta...just as bad
..sure I beat flat rate but one wonders what the engineer's are thinking.
Love the bloopers! Happy Anniversary!!
thanks Daniel
Haha, love the blooper real, Paul. I've had way too many days like that, for sure! Used to have to get creative back in California; my understanding was that if I knowingly charged a leaking A/C system, I could lose my A/C license in CA. Had to get creative a couple times! One of my customer's kids had a stink bomb. Drew a vacuum on the system, slucked in the vapor, filled with air, and sure enough, leaking evap core!
nice! That's one way to do it
Excellent video ol'' school my gramp's rip did the same thing he built a vac pump out of an old refrigerator! alway's tickled his customers.
I've found Simple Green works great for bubbles! I use about a 5-1 mix. And I can still use it to clean with!
Thank you Paul Danner Enjoy your Anniversary
Thank you for teaching us one more big thing!!!
Loved the bloopers . You sounded just like me on some days. Good to know there are others out there.
lol it is always funny when I'm editing. I wish I would have saved them all over the years.
Congrats on 20 man
Love the outtakes Paul
Thanks for the vid Paul! Congratulations on your 20th anniversary!
Instead of using gas for leak test inject chocolate syrup in and where the ants go that's where the leak is. Great stuff K MAN helping your old man out.
The ending is funny 😂 I get where you're coming from.
I think the heat was getting to you in this one Paul! I was waiting for the fender to fall off that turd when you slammed the drivers door! Enjoyed the video, have a great weekend!
Thanks Oz!
Great video Mr Danner. thank you; Get your air condition fixed and the added value of an engine wash. You Rock.
lol yep
Loved the bloopers man - I swear we're related, LOL! I was laughing my ass off! :D
A/C work is one of my favorites. I invested heavily in it the past few years - finally got a decent scale, a portable recovery machine, and a Bacharach H10 Pro sniffer. I enjoy doing it, & it's easy money, like you said. Great vid as always!
Thanks Smitty!
ScannerDanner, my ac is working and colder than ever, and I can’t thank you enough for helping me through another brutally hot az summer 🙌🏽
Unfortunately winter is almost here and it won’t turn off now lol. Seriously though, it’s not a mechanical issue, it’s definitely not an electrical issue. The front dashboard cluster works except for high setting, and the rear overhead control cluster stays on no matter what. All fuses & relays are good.
ScannerDanner, any suggestions would be greatly appreciated! 🙌🏽💪🏽💯🍻🍻
Happy Anniversary!
Nice ! Happy anniversary to you and your wife Paul !
Thanks Billy
I've been doing that method for about 8 years or so ..
and it works just fine for me ...y get the job done ...
Another interesting vid.. Thanks .. After watching yours and ETCG vids on air con ive ordered myself a set of gauges....thanks
sweet
Good recommendation on what to replace on this AC fix.
Enjoying these awesome AC videos! Part of the compressed air controversy might be that air contains moisture that uses up the Dessicant dryer bag inside the Accumulator/Dryer. In practice I don't know how true that is, might be valid concern though, & possibly already mentioned in comments. *On my air compressors I often have to drain condensation water out of them & never get it all out. I know they sell inline pneumatic water capture products for air hoses I should look into. Maybe already mentioned: Water + R134a = Hydrofluoric Acid; not the ac system's friend.
I've used compressed air to diagnose ac problems. for over 27 years ......and (that's when lots of cars had R12 systems in them) Y learn that from a technician at a Chevrolet dealership .. really old school trick y don't know but we never had any issues . come backs or warrantys..
so I used it just like scanner Danner does .to check the compressor Operation... and also for leaks ....but hey what can I say ..we love what we do ...tricks of the trade ...
Ac kit... compressor, receiver dryer, orifice tube, pag oil, o-ring kit. 2lbs 134A freon.
Happy anniversary buddy.
Thank you!
Happy anniversary man.
Thank you James L
I use the exact technique. I have no problem applying compressed air into the system since after I repair the leak I'm going to evacuate it.
Congratulations PAUL on your anniversary. Hang in there if you don’t like working on cars. One day you’ll be old enough to retire lol.
Thanks for the great vid! Just subscribed.
Oh man I remember those jobs. The ones that'll make you pull out what remaining hair you have left.
Thanks for sharing your bloopers.
Oh and Happy anniversary to you and your wife.
On the plus side of it that job helped you to make some extra cash for taking Mama it on the town though.
Congratulations Mr mrs danner, many more,. Great video Paul, one question, when you add air shop to the system, you open both higth and low valves? Then you closes? Or just open the low side. Thank you Paul .
Hello PAUL, good video and info as always enjoy ur videos always. cheeers
HAPPY ANNIVERSARY TO YOU & MRS. D... {VID AND BLOOPERS GREAT ALSO}
Thanks David!
Hey Paul, I've had good luck finding leaks with a small vacuum hose. Press a brass pipe on one end to make it rigid. Stick it up through the drain hose and in your ear. With compressed air in the system you'll hear a hissing. Also works well on compressor leaks.
That's a great idea!
Thanks for putting all your time and knowledge into making these videos. Love the bloopers at the end. Should do a blooper vid for fun sometime ?
#62 Carl Hagelin comes from Nykvarn in Sweden!! Hell yeah!!! Good player!! /cheers from Stockholm, Sweden!
awesome! We love Hagelin in Pittsburgh. Thanks for the cheers from Sweden!
This guys cheers for the right hockey team that's for sure!!! Lol
Thanks Paul Danner great videos thanks for shering thanks
Hell of good job I joyed it all thank you
hey scanner danner how r u good i hope ? is the PicoScope has more info than the snap on scope is the pico better to use thank u sir
I know this was filmed days ago. But congratulations 20 years of marriage. Been married going on 15 myself. We all get a little bent out of shape when our plans get changed from what we thought would happen in that day. As always thanks for the videos.
Good Video , I have to work on my Chevy 2005 ,
I love A/C work. When I owned my shop 5o plus percent of my income was A/C repairs. I live in Modesto Ca that gets 115 degrees for months. I wonder how many lbs of R134a I have wasted by not "air charging" the system? 1oolbs???
Exactly. Why would...never mind.
I like your style
Great vid
2000 malibu I'm 90% sure refrigerant pressure transducer is the cause of my compressor not kicking on. Compressor clutch engages when I jump pin 30 and 87 ay the relay. the green light is on on the climate module in the dash.
Without the clutch engaged I got 5.02 ref at the pressure sensor under the high pressure service port near the radiator the signal wire is around 4.9 and I get zero when grounding signal to battery. does this pretty much confirm the pressure sensor is shot? Does the compressor need to be engaged to properly test? should it not be between 1 and 4v with car running?
Thanks, in Florida and melting right now lol
the magic of editing ;)
for sure!
great video
First one...you are the man
PAUL why are you not using the yellow hose to charge the air in the system??
Another great vid!! Hmm thinking if another type of inert gas or propane, something would work that can be sensed in place of refrigerant.
Thank you for the video sir. Was just trying to log in to the premium side of your site and watch a video and somehow my subscription was no longer active. Resubscribed and did paypal again....hopefully she'll hold this time lol.
Did you do it twice? Let me look...
I did a search by first name Brandon and I do not see it.
The nice thing about my website is I now have control of the subscription process and can help you guys directly with this type of stuff.
email me at support@scannerdanner.com either me or my web designer Wyatt will fix you up. Evenings and through the night is when he works, so you can even hit him up now. Thanks buddy!
Is that the sniffer from harbor freight?? I've been wanting to buy it. If not lmk where u got urs sir
I’m totally deaf in my right ear with normal hearing in my left. I cannot tell where sounds are coming from. Hearing in stereo would be better. So I have to improvise by using an engine ear to hear sounds when listening to engines. Would an engine ear be helpful at all in locating leaks small and large in automotive AC systems? Have you ever tried to use one?
I'm happy to be back in premium scannerdanner thanks
Awesome! Thank you so much
Happy (belated) Wedding Anniversary Paul
Thank you!
Hello, Scannerdanner! Love your teaching/videos! Have a question. Why does my #10 fuse keeps blowing out on me? My 2007 F150 ac went out. I thought it was the compressor. Went to the junk yard and got another one. I tested it to see if it worked. It'd engage when ran current to it. Then checked if it pushed/sucked air. All function well. I replaced the compressor and added oil and freon. The ac blew COLD air! But don't you know that the original compressor had nothing wrong with it?! The #10 fuse would blow out when I'd suddenly push the gas. It was doing this on both compressors. Can't figure out why. I changed out the ac compressor relay. I put a new one in case the old one was getting hot causing the fuse to blow out. It wasn't the relay. I've done replaced the compressor two times. Fuse blows up on both. But ONLY when suddenly pressing on the gas. Why? Some say it's now an electrical problem. What's your opinion or professional response? Thanks in advance for your reply and assistance.
I would like to bump in to Paul at his local parts store just to hear the conversations. I bet people that know him always asking what could be wrong with their cars.
You have no idea.
I always say, when it comes to a compressor failure:
Mr/Mrs customer, how much is your comfort worth to you because this is about to get expensive :-)
for sure, it can be
More than the cars worth. Alot of vehicles come in barely running and about to fall apart. But all they want fixed is the A/C
Happy 20! Can you make 20 more!?
Add dye and charge with shop air and watch for dye coming from the evap case drain.
So would injecting air in the system work on a swash plate style ac system?
yep
ScannerDanner ever see one where the ac compressor stays on? Tech 2 shows climate controller functions correctly requests ac on and off. However the relay is being energized (good relay) even though ac is off and recirculate is off too...
Have you though of printing a supplement to your book that covers newer 02 sensors and newer fuel trim percents
for sure! I'll add it to the list :-) But in my opinion, not much has changed. Sure the wideband is different but it certainly isn't hard to troubleshoot a bad one. The newer trims would be cool to sit down and put something together. I will eventually. Thanks Nathan
Thanks Paul for share and congrats for your 20 years married =)
Saludos desde chile de ciudad de puerto montt
Hi Paul just a comment where i used to work they would put dye in the refrigerant and use an infra red or ultra violet light to see where the leak was....from Fred in England.
spray your gauge hose connections too, I thought I had a leaky system (wouldn't hold a vacuum) turns out I didn't tighten the low end hose connection good enough at dial gauge set and it had a small leak.
Good video very explanatory friend I ask you a question I want to buy an electronic detector like yours even the same model, I ask you work well does not affect the environment, the wind, and say that in open places it does not work well although I observe that you you use outside the workshop. It is effective and it is true that the mouthpiece wears out and the appliance is useless. Regards my friend.
I removed my dinger it annoyed me so much after I bought it, If I remember it was in the door and was just a plug. Did it like 14 years ago so memory might be off lol.
Atmospheric air is mostly Nitrogen anyways so.....People who question your methods really need to educate themselves.
Good test on the compressor with air but I have to admit I had a mini stroke hearing that run without AC oil.
:-) I've used this method hundreds of times on all types of compressors with absolutely zero issues. I've also been able to identify (on an empty system) faulty compressors and no power issues to compressors using this method. And that is the whole point of using it. Make sense?
I don't want to sell a customer on an AC repair only to find out when I am done that I have no power to my compressor or that the compressor is bad.
Thumbs up good go
why can I not jump my compressor through the relay to force it on, 1999 chevy silverado
Ok how can i tel if my clutch is bd a found a valve leak and fix it but now the compressor wont come on at all all relays and fuses are good but clutch does not engage at all
It sucks you gotta put refrigerant and dye into it to find a large leak knowing you will waste it and it’ll bleed off and peak into the atmosphere and damage the ozone. But people want their cold air and feel comfortable. Sometimes you gotta do what you gotta do. Love your videos bro!
heyitschino 134a doesn't damage the ozone
Joe Shearer i thought it did just not as much as R12
I bet you run your AC in your car and house while you waste gas cruising for no reason! Not good for the environment! Oh well. People do what they're gonna do!
How many times have you encountered multiple leaks on the ac system? Happens to me all the time, i always check the whole system. On european cars where i always work on its 90% ac condensors that leak.
I would say not often, but I definitely have
Yeah, no need to worry about that warning label that tells you R134a can be explosive when combined with shop air. That is like literally one of the first things they tell you in the book that you study for the test to become a certified AC technician.
Study that more. There are specifics to that. Not to mention I'm not adding shop air to a system with refrigerant in it. It was empty.
Why when i put freon in it worked for about three days then it wouldnt take freon so i changef presshure switch it kicked comphressure .but it wont take freon knaw drained air out but i notice black stuff when i un presshurized the hose from freon adapter
what are your AC pressures with the compressor engaged? and at rest?
Love it man. Where did you get the AC detector? HB?
off of the tool truck over 20 years ago but I found an equivalent on Amazon and put it on my page if your interested. Link is in the description. Thanks!
ScannerDanner ,, nice tool leak detector
ScannerDanner how much is it?
Check the Schrader valve I ain't seen you do that
Why is high side and low side on same line?