Where Is The Fuel Pressure Going?
HTML-код
- Опубликовано: 27 янв 2017
- In this video Eric O. has a look at a Cadillac that will not hold fuel pressure. Fuel pressure on a return type fuel system can leak one of three places. It can leak out the pressure regulator externally and internally allowing fuel to bleed back down the return line. It can leak out of the injectors and it can also leak back on the pressure side if the fuel pump check valve is bad. The question is how do you know where it is going!? Pay attention we are about to find out!
Interested in stuff seen in the videos or the tools and toys Eric O. likes and uses? Check out the S.M.A. "A-Store" and help support the channel! : astore.amazon.com/httpswwwy083...
If an SMA Video has helped you out please consider giving using the "support" link on our RUclips home page. The videos take real time to create and pull us away from real work that pays our bills.
THANKS!
--Eric O.
WANT AN "SMA" STICKER OF YOUR OWN!?!
Simply send and E-mail to SMAstickers@outlook.com including: your shipping address and e-mail address in the text, I in turn will send you a paypal invoice for $5 each USA or $6 each international. Let me know how many you want and as soon as the paypal invoice is paid I will ship them out ASAP! Thanks for your support of our channel!!
--Eric & Vanessa O.
Feel like sending some swag to SMA because you love the videos but don't know where to send it?
Just ship it here:
South Main Auto Repair
47 S. Main St
PO Box 471
Avoca, NY 14809
Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair 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 South Main Auto Repair, 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 South Main Auto Repair. 
Авто/Мото
You have the best videos, informative, clear, no distractions, no distracting music, no dead air time. Just the facts
One of the best fuel leaking teaching, efffective actions, no bubbling. highly respectful. many thanks, 👏👏👏👏
If you had been an instructor years back at vocational school, I’d be an auto mechanic today lol. Excellent video, easy to follow and understand. Great Job!!
Very methodical troubleshooting. I've been fixing cars for 25 years and I'm always learning some new trick or tip from you! Thanks for making all your videos for the RUclips community.
Wow, when you said "it might just be your time" in the beginning, I have never laughed so hard during an SMA video. Pure genius. This is just one of the reasons I'm a big fan. Keep it up!
I'm just a DIYer, but am really learning a lot from your showing how to step through a diagnosis. Thank you.
Been a few years since I pulled wrenches for a living , but apart from a few dribblers and odd shaped spray patterns, injector failure was fairly low on the ladder of anticipated failures. Which is kinda amazing considering how many millions of times they have to cycle to get you down the road...if I'm not mistaken my old 68 square back had Bosch injectors which never seemed to fail.
Hell of a great video! Well explained and now I know how to check the system better! I have a few more issues to check before ripping out the pump. Appreciate your knowledge! Keep up the great work buddy!
Just today-same problem - put pressure guage on fuel line out of tank and found the check valve leaked back. New fuel pump assy being installed. Will check, then recheck at rail. Very good on your presentation.
South Main Auto you TRULY ROCK and your skills are A-1.
Another great South Main Auto Repair - Eric O video! Excellent examples on how to systematically go about diagnosing a fuel pressure problem.
Great methodical diagnosis Eric.
Eric
i got home late and got on the pc and was like damn ,.....no sma videos....and then i hit refresh and bam! you uploaded one.
Timing perfection.
Thank you for your thorough demonstration of isolating this problem. I really appreciate your methods and presentation!
Great video. I have a fuel pressure loss in my Subaru that I need to troubleshoot, and this is spot on for evaluating what's wrong, helps me out a ton for plan of action.
Great job explaining the three places fuel could go! Keep up the good work on your videos.
Excellent demonstration of how those old fuel systems work.
Old?, thats how they work today.
seriously this video is very informative. very precise diagnosis. thank you eric o. thank you very much for great stuff.
thank you for this video. It thoroughly explains in logical fashion how to diagnose a fuel leak. Please keep up the good work.
This is an amazing mechanic! Very good Sir, and you’ve helped me to go somewhere with an issue I’ve got on my older f150 with a 4.9 EFI. Thanks so much Sir! Wow, yes it was definitely spraying like wide open like no injection was there like you have equated on this video! Never will have thought an injector could as you say leak the volume it did… just wow, wide open like not there…
Great video Dr. O! Just had a Yukon on Friday doing that exact same thing, customers bringing it back Monday now I have a new approach for it. thanks for all the helpful information.
Awesome diagnosis sir....1st class !
"Safety squints" Your funny expressions are one of the things that make your channel so much fun.
A nod to AvE for sure. 🤘
i like the term "Bitch Mittens" aka gloves.
You are Very thorough and it is nice to learn from someone that diffenly knows what to do. I greatly appreciate watching your videos. Thank you
One of the best videos I have seen on this subject.
thats crazy! never saw an injector leak that bad either! great video as always keep them coming! wow that injector is crazy
You are The best car RUclipsr! Thank You so much for Your videos, that I can learn from!
This guy has the best informative videos. I'm still catching up on all of them.
This is the best testing procedure that i has ever seem, i really enjoy it thanks for the info.
Great video Eric. Never seen an injector leak like that before!
This is too much of a coincidence. Im currently dealing with residual pressure lost. Thanks so much for video.
Excellent excellent video this individual does an excellent job in explaining so much in almost less than 20 minutes.
great video Eric thank you your videos have helped me advance my wrenching abilities greatly
Eric you're my hero I just love watching your mind diagnose things. You're my mentor. Thank you hope we can meet someday
there's your problem lady
You did a great through video and covered all the fuel diagnoses bases well done and thanks, Old retired wrench!
very informative and in depth fuel diagnostics
Best fuel pressure test video i ever watched. Thanks a lot! Definitely worth the subscribe button
Just the video I was looking on how to test the fuel pressure regulator part. Thanks for sharing
You are wickedly nice at what you do bro. Respect ✊🏿
Very informative. Thank you Eric.
Excellent video and explanations to fuel pressure drops. Thanks
Great video! Good editing. To the point. Made the diagnose look easy
Awesome Diagnostic video Eric !, Keep up the great Content, Even As a Certified Tech It helps to be shown other ways of Diagnosing !
Awesome video - love the clear explanation - thanks Eric O!
Epic injector fail for sure Eric. Sweet catch on video! Lots of good info in this one. Thanks!
My '79 Caddy Seville EFI Olds 350" had that problem... getting 1 MPG... raw gasoline dripping out the end of the tailpipe... Caddy wanted $180 for a new injector, so I blew air through it backwards from an air hose while jumping it open with 12 volts and it cleared the clogging crud out of it... worked fine there after... still have the car... Caddy wanted $400 for pair of new rear air shocks, so bought universal ones for $50/pair... Wanted $90 for front muffler and $60 for rear resonator, so put four $15 turbo mufflers on it... quieter than stock and less back pressure!
im a huge fan of your show i have bin wrenching for over 20 years and im still learning new things with your show
Man I learned a lot...I'm working on a Polaris Ranger and all your information enabled me to fix it and I thank-you!
Wow! That's a bad injector! Great video! Thanks for sharing!
I enjoy your videos. I like the problem solving logic as well as the close ups. I'm a little hard of hearing so the clarity of the audio is important to me.
Wow that's amazing the flow rate of that injector. Again awesome video Mr.O
I like your plumbing setup on your fuel pressure gauge. Like they say, necessity is the mother of invention.
Good find Dr. O., if it was mine a trip to the salvage yard.
Great Video Eric, you are always a step ahead of me:) I was thinking that a thermal camera would be a good way to see if an injector was staying energized by seeing which one was hottest, but then you mentioned the thermal camera! I was also thinking that seeing which injector was COOLEST (due to the fuel flowing through it) might be a quick way to pin down the culprit.
I’m gonna try this on my Pontiac 2.4 1998 GT. Same exact issues, Loss of pressure slowly going to check everything you did in the video. Thanks much I wish I had a mechanic in my area like you
Terrific teaching video, thank you for explaining concepts and tricks of the trade. WOW....
Enjoyed this immensely thankyou.
educational as usual Sir Eric. Ive got a vauxhall (General Motors) Astra active 1.6 inline 4 with fuel injectors similar to those on the cadillac .I ve had problem with the upper sealing rings blowing out cause over presure at the pump in the tank.
Eric O. This is an excellent presentation into diagnosing an event I have seen to date. No one does them better. Process of elimination was right on. Don't want to sound like a brown noser but, you are my hero. All that in twenty minutes. if your not getting paid somehow on these videos, something is wrong in internetville . Bless you sir.
💯💯💯💯💯💯💯💯💯
Agreed. One of the best diagnosis videos I've seen on the Tube. Thx for posting it!
3es ree redd er by ßßaaaaaaaaaaaaààààßaasaaaaaàaaàaàaaaàaaaaaaaaaaaaaàaaaàaaàaaaàaaaaaaaààaaaaàaaaaaaaaaaaaaaaàà sea aa area At
I want to thank you for this video! My 2000 LeSabre, while hard starting, was running pretty well. It wasn't backfiring like with a leaky pressure regulator. (I'd changed it 5 yrs ago only later to find it had been the subject of a recall a decade before it failed.) While I don't have your tools, I do have a gauge manifold and a small compressor. Following your method, with no external leaks, I determined it must have a faulty pump and replaced it. Inspecting the old part, I found a pin hole leak in the plastic flex line, bleeding pressure back into the tank, between the pump discharge and the top of the assembly. Oh yeah! Bonus. I also now have a working gas gauge.
Very Nice Diagnosis. You know your stuff !! Nice to see. Gonna check out my 454 she is leaking off her fuel pressure at about the same rate. Thanks a lot, I appreciate you explanation and time. Thanks again..
great work Guys...
now if I just had all those tools
Eric, you're awesome. Great video as seems to always be the case. Thanks for sharing your knowledge.
Bro you are a BOSS. I hope I can get to your level of experience and knowledge someday. Thank you for sharing
YOUR VERY GOOD AT WHAT YOU PRESENTED EASY TO UNDERSTAND THANK YOU
Thanks, I appreciate your time and videos...
Outstanding details explanation.
I enjoy watching your diagnosis....you make
What you're doing look easy. Your experience has obviously been gained through many hours of work. I only wish I could find someone like you to fix my car in barrie Ontario Canada!
Thanks and ( look out scotty ) this guy knows his stuff too!
Look out Scotty if you are talking about Scotty Kilmer he has never put out a video near as good as Eric. If he does know as much as Eric he has never shown it in a video I have seen.
Thanks for the explanation
Im having lean issues myself
Great video. You make it so simple to understand. I am getting a p0171 and p0174 code. I was thinking weak fuel pump as the regulator seemed to be working, when vacuum line is disconnected the pressure goes up with no leaks. When car is shut off the pressure drops. After watching your video and seeing how you pinched off the return line l did the same. My pressure was much higher than when the car was running and it was maintained after the car was shut off. Final outcome was a bad fuel pressure regulator. Much easier to replace than a fuel pump. Thanks a million for your video. Doug in Canada
brilliant was just dealing with a neighbours car with low pressure fault only reading 0.5 bar! new in-tank pump with built in regulator solved it cheers Eric, sandy
Amazing diagnostic .👍
Great job Eric!
great demo eric as always keep up the good work
I’ve learned so much lol thanks I’ve filed that away...I just watch random videos by you just trying to get better at diagnostic
Great video. Love all the deductive reasoning
Eric you are my mentor and trainer!
I done learned something today, thank you for your vid's.
Great demonstration!
That was helpful. I have similar pressure loss on a tbi. Should be easier to track down now. Thanks a lot.
My fav channel. So much great info.
Great video Eric. Very informative.
Yes you are a good person to help people understand
Your the man, We look on and feel like top notch mechanics till we see our problems somewhere else’s,
Good Diagnostic testing!
You found the gusher!
Excellent video Eric, thanks for this info!
The new Northstar firehose injection system-!
yambo59 that's hilarious!
You rock as always. Saying hi Eric O from central Louisiana you the man.
Great video Eric..., bin watchin for a while and you are becoming great instructor. Very much like working side by side with an experienced pro! 2 thumbs up!
"There's your problem lady", lol. Great video Eric. Nice call on not cranking that thing over. Talk about hydrolocking jeeez!.
Awesome video... I've been looking for ways to determine why my LS won't hold pressure with the key off. Unfortunately I don't have one of those T fittings. I believe my issue is either the pump check valve or pressure regulator.
Great video! it really help me alot. Keep them coming and thanks for your time.
Thanks, great analyses
Thanks for the Information!!
great video Eric ! Never seen an injector do that before
The word is deluge. It deluged the cylinder. And if Hannah had not have shut her down it would have deluged SMA with fuel. Excellent and another enjoyable video to watch Eric. Thank you so much !
arciefan I wonder if that injector came off of an engine running nitromethane? Had the flow rate!
Thank you. I needed to see this. This helps me a lot.
VERY impressive video!
Excellent video Eric.
Nice job Eric. Definitely a major leak going on there