Chevrolet Silverado 5.3 : Misfire
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- čas přidán 2. 01. 2020
- In an effort to salvage a video I came out with this one. I have been messing with a screen recorder on my Autel 908 and it really messed up on the first vid to the point it just wasn't usable. Needless to say I drag you along for "Part 2" and try to salvage what I can. Oh well, some days you get the bear and some day the bear gets you. -Enjoy!
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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. - Auta a dopravní prostředky
*Be sure to check out PJ over at Voltage Drop Diagnostics as he demonstrates how to check injector flow to diagnose a lean problem on a Toyota. This is a method I learned from him and has been very helpful and can be added to your diagnostic arsenal as well! Tell him Eric O. sent ya* 😉
czcams.com/video/bjrROWyRIKs/video.html
Thanks for the heads up on the new channel.
What kind of t-sockets you use that have a green handle?
How do u find out a random misfire
These diagnostic videos are indispensable to those of us who count on them for a living. Got one on my four post right now that has a miss but only when under load and no codes.
H me og
After a week of scratching my brain out trying to figure out a rich running engine (that i still cant figure out)... A night off watching some SMA is all i needed!
No codes?
@Ryan Hogan Actually will read lean, it's an O2 sensor not a fuel sensor. A misfire dumps a whole cylinder of air into the exhaust, and that is full of oxygen.
THANK YOU VERY MUCH ERIC!!! For going through the effort of doing this video twice. I genuinely appreciate it. Keep up the great work!
Hi Eric, After the injector swap and you fired the engine and reviewed the scanner info, you mentioned the slightly negative fuel trim averages and theorized that vapor pulled into the pvc system from fuel contaminated oil was likely he reason. Brilliant. Information like that is another reason as to why I follow your channel. Thanks for taking the time and effort to share your vast depth of knowledge. I began my learning 60 years ago in the pages of my beloved HotRod magazine. I still read it (Street Rodder et. al. have just been cancelled as a print media, sadly) and for some years now CZcams has been a huge contributor to my continued attempt to learn. You’re the best, Eric. Thanks, and best wishes to you and your family. Semper Fidelis Dave Heitman in Omaha
I am glad I am retired from busting knuckles as an Master Tech at Toyota for 36 years, we did not have all the fancy tools to diagnose as they are today. I love seeing the new tech world of tools to make jobs more easy and making sure things are fixed.Keep up the great work, with the videos As the old saying once a grease monkey always a grease monkey.
I recently had a sudden dead cylinder misfire issue with my '06 G6 V6. Got a P0303 (cylinder 3 misfire) along with the flashing CEL and lean codes. Went through troubleshooting steps: swapped plugs and wires between cylinders, checked spark with inline tester, checked compression on that cylinder (was 190-200PSI). Was looking like a fuel delivery issue. Tested the injector coil resistance and it was good. Checked as much wiring as I could and nothing seemed amiss. Checked the signal from the ECM to the injector and it looked good. All evidence was pointing to a clogged or stuck closed injector.
I replaced the faulty injector (new bottom o-rings for all the others too) along with plugs and wires for good measure. Was a bit of a job due to having to remove the top intake plenum and everything in the way. Got it all buttoned back up and that fixed it :)
So you realize not only is that a Chevy but the devils Chevy 666
That's always the best feeling. You saved a bunch of money and did it yourself. Now days, most people cannot or will not. A job well done is the greatest feeling!
"the old cross handed double twister" more commonly known around these parts as "tune in Tokyo"
Things I learned from Eric O.:
-- not a sponsor
Set the money light
What the thunder is going on here...
Whoa there, fella!
Whoa, man down!
Chev-errr-lay!
Hon-duuu
Knee-San
Test, don't guess!
Well, there's yer problem, lady!!!
The ole scope on a rope
That OSHA approved bucket
And uhh, just remember viewers if I can do it -- you can do it.
Thanks for watching
Where did "Hon-du" come from? I understood everything but that.
@@1mrhamel ask Eric O., he came up with that one
Safety third...
@@1mrhamel personally I like Hon-duhhhh myself
Eric Every time ya work on a Chevy Truck I say "I didn't Build it, but I'm gonna fix it, because I bought it" I still love my Chevys.
More towns need more shops ran like guys like you.
Mistakes happen to everyone using video recording, still salvaged enough to make sense and for us to learn from. Appreciate everything you do, thank you!
Hello, just wanted to thank you for your continued service that you provide on your channel. I look forward to seeing them and appreciate all that you unselfishly share.
Eric you are the absolute best technician I have ever seen. Colorful, honest and smart .. A real class act!
Keep up the great videos even if CZcamsrs are constantly calling you asking for help lol..
I wish we had a guy like you in our area. I love watching your videos. It's awesome how you do not give up on something until you figure out the issue. My 2003 silverado ss 6.0 LQ9 has similar issue. Spits and sputters. Drives ok for a minute and backfires and pops the next. Had a few local guys try to diagnose the issue and it still hasn't been diagnosed. Has random misfire code. Has codes for running rich and codes for running lean. Just frustrating to keep spending money for people to not figure out this issue. And I have a beautiful truck sitting in the garage that I can't even drive. Once again. Awesome job the people in your area hopefully realize how nice it is to have you for such issue. Stay healthy and stay positive
Very informative and helpful! Thank you very much for all the effort you put in to these videos. We’re so fortunate to have you on CZcams. I’ve learned a ton!
Happy new year Eric, love from western illinois. What a night, i get to watch SMA, sit back and relax.
I glad I stumbled on this channel, I just bought a 2002 Escalade and the videos you've made on these trucks have been incredibly useful.
My initial diagnosis was to many leaves 🍁
A
I work on a lot of optimum express vans with the LS engines and come across this often due to higher mileage ones it’s a cool find and the after repair is a good feeling. Love the video and diag approach Eric 👍
Great info Eric. Always love learning from you. Especially when it comes to using the pico!
Absolutely brilliant explanation, I am glad you give us a view in your diagnostic process and provide us logical, easily understandable information. You really make us feel it is so easy to diagnose those problems, greetings from Romania, I am definitely your fan! Keep up the great work 👍
Mm, this is more exciting than watching a game show. The outcome isn't scripted. You may have my half hour of attention 👌🏻
Have you been watching politics on tv? The scripted outcomes and all, it's hogwash. This is real honest and in your face entertainment
"You're meddling in things that ought not to be meddled in. It's dangerous." Oh, how I can use this at work. Happy New Year! Thanks for your videos.
I tuned in to watch another excellent diag vid but instead I learned a new mechain term: the bigger the glob, the better the job! LOL! Kudos, Dr. O!
Do your best and caulk the rest!
Works with flux as well...
@@0778drz110 Another Keeper!!!
Give AvE a watch, you'll be able to write a whole dictionary for the Canadian Tradesman after that.
Since I have an 02 Suburban with the mighty 5.3, this video has been most interesting and helpful! As always, Professor O, great job! Nothing better than waking up on Saturday morning and finding an SMA video in the cue!
A persons troubleshooting ability is the difference between a parts changer and a true mechanic. Thank you for continuing to make in depth videos.
A grease monkey vs. a technician
The best intro on CZcams... Love to watch your videos and learn. Thank you and Happy New Year
I can't help but appreciate how thorough your are, personally I would just watch fuel trim corrections. If ltft drops to + or - 5% I would ship it. Also change the oil if it smells "gassy" from the #6 overfueling...
Gotta like the way the scope recorded the results, at about 6:21, and it was helpful to see how you had the pressure sensor attached later. Of course the slight variance in the pause between each test doesn't make any difference, since the duration of each 'on' time was identical. Cool to see the test automatically boosted rail pressure to exact baseline before each cylinder test. Excellent point about how excessive fuel in one cylinder causes lean misfires on the rest of the bank. It is so nice to see another SMA video!
Eric O, My greasy old hat is off to YOU Fine Sir .. Im 64 and been fiddling with mechanics for a very long time. You fine sir are teaching this old dog new things with every vid you do. I especially love your explaing the diagnosing that brings you to the fix... Proof positive that an old mechanic can learn new things. You are right if You can do it, I can too, I just LOVE that. Best teacher I ever had , and replacing my DAD is a feat I thought no-one would ever do. So sorry for your loss. Keep the vids coming Ive got a lot to LEARN.... MB in Ut.
Always learning something new on the old SMA channel 👍
Happy New year to you from NW IN.
Nice video. I like the use of the pico on the rail for the drop test. I gives you solid numbers over just using a fuel pressure gauge. Great job brother.
plus you can save and document easier too
You do a great job, I learn so much from your video's, the sound, lighting, camera angles are all excellent, I feel like I'm there watching over your shoulder.
Mister-o! I hope you had a great New Year's with you the wife and the kids. God's blessing for 2020 and the future.
Thanks again for your hard work on the videos! I know for me I definitely learn new tricks and other ways to test parts and systems so thanks again for all you do!👍👍
Really enjoy your video's, I'm an automotive mechanic myself up in Canada and I definitely like your video's and your description of the diagnostic process better than any other youtuber. I can tell you really know a lot through your experience!
Jay Faulk I’m from Canada Ontario too and I love his videos and the content to that he provides to help people and technicians..Eric is very advanced in automotive field..
Hey SMA, I'm glad you didn't let the setback of the video error stop you. Fixing a vehicle problem can be maddening by itself. Not many can fix, video, edit, and entertain. Keep 'em coming SMA.
Thank you Eric. Have a blessed and safe New Year to you and your family.
Great video, Eric! This is hands down my favorite way of diagnosing injector flow!
I mentioned it was because of you.. this is my new preferred method. So much more accurate PLUS.... it's nice to have them all captured on the screen. Use cursors to compare, etc. Thanks Pj!
Voltage Drop Diagnostics I knew u would notice the wps test for fuel pressure.
Bill Rimmer behind the scenes, Eric showed us youtubers the results of his test and I had a corolla that I was doing the same test on at the same time haha!
Unfortunately I didn’t get to film mine. But it’s certainly one of my favorite tests for fuel injectors.
Thanks for posting up such great content! I friggen LOVE this channel. Happy new year Eric O and family!!
24:36, I AM HAPPY WITH IT! Great diag video Dr. O.
Great info Eric! Good to know that an issue with a misfiring cylinder could be this solution, the injectors! Saved into my Favorites folder. Thanks for the help!
So many fantastic innuendos in this video... Love the content brother! All love from Texas.
Great diagnosis and love the PicoScope graph and annotation.
Thanks for sharing.
The injector drop test with the WPS is a thing of beauty. Thanks Dr. O!
I watched it twice, so's to retain in memory better. A great video, can't understand 5 dislikes-always a sour grape somewhere, everywhere. Happy new year.
Great testing technique Doc,way more accurate than one with the gauge.Cheers!
He flubs but the recovery is awesome. that's a sign of a true professional folks. Eric, thanks for another great video.
So crazy other mechanics don’t use the tools you do to diagnose issues, I took one automotive class in college and learned how to diagnose issues like this with an o scope.
My open lab teacher also told me to “not dry hump my injectors”. People who don’t know how to diagnose things end up throwing parts at it, “why don’t you change them all” ? Sometimes it’s not worth it sometimes it is, sometimes - if ain’t broke don’t fix it!
Anyways love your vids always reminds me of the valuable stuff I learned from my teachers and myself from working on my own cars!
Perfect way to end my evening, some SMA. Happy New Year from here in Illinois Eric, looking forward to another year of kibbles n bits, brake clean, and not a sponsor NAPA parts
Jon Liegl : That’s a great looking logo Jon !!!
@@dennishayes65 haha thank you sir. Got 3 of em in my driveway, I wont drive anything else
hello fellow Illinois resident! Hows it going?
@@kylins.7132 living the life of taxation and pot holes
@@McBosshog85 dont forget the new registration fee prices. a small trailer registration went from $18 to $118, and recreational weed is overpriced. 65 for an eighth.
Re-enacted diagnosis is just as good as the original especially with the data you took, good job as usual.
great video Mr.Eric o learned alot thanks for your infomation. and Happy new year.
Interesting that you should post this. I just had an 06 2500 w a 5.3 that had been to 3 shops for a rich code that they couldn't figure out. They replaced o2s, pump, MAF, and oddly enough, intake o rings. Shop before them did coils on bank 2 and full ignition tune up. The 3rd was talking about a new ecm. When I got it, every cyl. on bank 2 showed misfires in history, but only 8 was current. I used my old school Snapper fuel pressure gauge with the scan tool hooked up and ran the balance test. #8 showed a 12 psi difference as opposed to the rest. Honestly, I'd not seen this style injector fail like this before, so your vid is definitely worth watching!
Thank you for making these videos and I always learn something new when I watch. I bought a scan tool that I can plug in and look at a few things and your videos help me understand what I am seeing like the fuel trim and other things, what is normal and what isn't. I just bought a used 2018 GMC Sierra so another reason to watch. Days after I bought it the fuel pump died and they replaced it under warranty. The truck was acting up when I took it in and when they did a test drive it completely died on them and they had to have it towed back to the garage.
Great video Eric. I solved my OSHA approved bucket issue by taking 36 inches of 3/8 rubber fuel line hose, splitting one wall lengthwise and securing it to the rim with goop. Wait 24 hours and then no more slipping. Plan B is to purchase a work platform (about 12 x 30 inches) with rubber tipped legs made by Werner (not a sponser). These are available at Lowes or Home Depot and often on sale 3-4 times during the year.
Great video Eric. I like seeing all the equipment you have.
Thank You Eric Thank You nice to see you again.
Great video showing the use of the WPS500 with the Injector Balance Test to isolate an injector problem. Between you, Steve at Simply Diagnostics, Frank Massey, and Paul (Scanner) Danner I've learned a lot about getting the most use out of the WPS500.
I like the visual with the picoscope👍
These small laptops and handheld computers are amazing..i remember as a kid, walking into a garage and seeing a big metal box in the bay with wire and probes, a tv monitor, i guess, an oscilloscope.
The speed of that Pico injector test is awesome! I have done the injector test manually a few times with the OTC controller and a pressure gauge. Each time I had to do the entire test twice, on eight cylinders, to confirm my numbers and even then I was not 100% sure it was right.
Many thanks for this lesson and explanation Eric.
Watching you makes me want to go clean my engines, my vehicles have never been this dirty
I've been so inspired by Eric and family at SMA !! I'm giving everything in life The Full Beans !! God bless the O's !! Paying It Forward video was moving. Learned about used car inspections and got a bonus of seeing The Holy Spirit in action. Happy New Year O's !!
Some SMA in the new year...wonderful having Eric O put me to bed ....now..I hope for a Challenger brake job video for 2020!...with the 6 piston Brembos :)
Always learn something from watching, thank you for the lesson and entertainment.
Excellent video Eric, thanks for sharing! Happy New Year team SMA!
Eric, you helped me better understand just how the fuel system works. Thanks for all the videos, they are very helpful.
Happy New Year to you & your family, Eric...
Missed ya over the holidays. Hope your family had a nice Christmas. Good to get my SMA fix again on the big 5.3 chev-err-lay. Someone didn`t lube those o-rings...and gorilla`d the injectors in which tore the o-rings. Nice job Prof. O. Happy New Year SMA family. Be safe...God Bless.
Eric, hello been along time i did not comment what can say through all these years been watching ur videos i became better technician and learn a lot and even bought the tool u r using made my job much easier and on this video i say bravo and what an awesome way to check for pressure drop in each injector fast and to the point of excellent so brotha i wish you and the family a happy new year and hope will see a million sub or more on 2020. cheeeeers
Seeing you use the scope and using the scope it is so much more you are good at what you do
Best Mechanic Video's on CZcams, just need more of them, getting slack.
"Bigger the blob, the better the job" I love it😂
Nice job, Eric. I don't know what GM's tolerance spec is for the variation between injectors, but i do agree that if it's running good and there are no codes, then it's fixed. If the pcm is happy, it's all good. I'll have to remember that about using dielectric grease the next time i have to remove and install injectors. Most of the time, it's usually specified to use clean engine oil. Thank you for taking the time to make another video, this stuff is helpful even to people that have been in the business for a long time.
Just fixed one 5.3 Suburban 03. It was the plug wire on passenger rear rubbing on fire wall off coil pack and heater hose plastic y pipe oring connect above dripping on coil.Spark snapping sound heard occasionally.
Intermittent.
Excellent work Thanks!
The Master Tech wins again! Great video Eric (as always!)....Happy New Year to you and your family!
Just goes to show how accurate that balance test is. PCM was pulling back 21% on the bank 2 fuel. The #6 injector flowed 6 p.s.i. more than the others which is 20% of 30. Excellent diag Dr. O.
Thank you again for the knowledge. As I’m in the diesel trade, but will work on anything my family needs my help on, working on car” wise”
Thanks for sharing! Happy New Year to you and the fam!
Thanks for another great lesson, professor Eric.
Every now and then my money light comes on, i then check the codes and its 304 again, i then replace fuel injector and all other necessary things pertaining to it. I clear the codes run it for a week then the money light comes back on with the same old 304 on the number 4 cylinder on the v six 2006 jeep liberty. I am now considering the lifter to possible be bad causing a slow release of exhaust or not closing all the way in turn making it idle just a little ruff on that cylinder. some times the money light will go off for a week or two and then randomly come back on with the code of 304 on #4. Your videos help a lot in understanding the operations of things so thank you for taking the time for us to learn !
Thank you for all the videos. My wife and I took a trip to Corning this fall and I had to stop by and get a photo of myself in your shop driveway. It was a Saturday or I would have said hello.
Jesse Burns , did they same thing this last summer. Was in Corning for a wedding and stopped by SMA on a Saturday for a photo opp in the driveway. I even saw Vinney heading down the road to dollar general.
@@Mark-vc7rm My wife still does not understand why I needed to stop by. That was a highlight of my trip And Corning Glass was OK as well.
It looked like who ever was messing with the injectors was so close to figuring it out. I’m guessing they didn’t have a scanner to to watch the cylinder misfire move cylinders when they swapped the injectors.
Did the same thing but I met Eric and his daughter. My GF was a bit perplexed but thought it was great afterwards.
Went to see the caboose motel 17years ago
thx for the vid... Happy New Year to you, your family and staff.
Awesome content brother. Thank you for sharing your experiences and knowledge.
I only wish I lived closer . I could drop off my basket case Sierra .You Rock . Just brilliant
Great Job Bro! I enjoyed watching your work in diagnostics on the 5.3L.
Nice find/Repair. Love the waveform and use of Pico. I have done the same test myself, gives a great visual. Good work man
You are a GREAT Mechanic!!!
Great diagnosis as always! Im a very old school tech. and even after diagnosing and correcting the problem Id still check a few spark plugs. Its just SOP for me like going to a doctor and checking temp. and blood pressure. With my luck, customer would be back in 2 months screaming warranty only to find the plugs had 100,000+ miles. Im still an analog guy adjusting to a digital world.
Great work Eric as always. Thanks!
Great diagnosis Mr O!!!!
I hope that Mrs O is enjoying her new kitchen 😊👍, hope now that she has the kitchen she will allow you to start your own salvage yard 😉
Just something I noticed, each sides fuel pressure drop was even on bank 1 and bank 2. All the even side pressure lined up to each other and all the odds lined up to each other... just a random observation. Keep up the great videos man.
😄😄awsome video SMA these videos keep getting better and better 🙌
Thanks that was very informative. My 09 has a misfire. I appreciate the info.
Have a Safe and Prosperous New Year
I’m Sure that Your video was SUPER JOYED. happy new year 2020👍👍👍 from Tijuana Mexico with love🇲🇽
Thxs Eric nice lesson and too start the new year off...
Hi , I really enjoy watching your video . I drive and repair the same vehicle for 40yrs . Happy New Year from the far East....New Subscriber.