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In this video we have a look at a 2002 Chevy G3500 Express Van with the 5.7 liter that has a customer complaint of "bogging, lack of power after a hot soak." This is a fairly common complaint and symptom. It can be caused by many things such as a plugged catalytic converter, a failing fuel pump, or as we see in out case an oxygen sensor that is on the fritz! -Enjoy!
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Bosch O2 Sensors: http://amzn.to/2EDlcpB
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50 thoughts on “Chevrolet express: no power after hot restart”
  1. Avataaar/Circle Created with python_avatars butch p says:

    I have a 2020 Thor R V Chevy 6.0 l . When it is hot out (90) or hotter . It don't take fuel as you take off. no warning light on. Dealing can't find anything . Thanks

  2. Avataaar/Circle Created with python_avatars frnkjones40 says:

    The white balance is fine. You’re just a bit backlit. Thanks for the upload!

  3. Avataaar/Circle Created with python_avatars Marcos Hubner says:

    My 2009 Chevy cargo van shows that the van is overheated( but when o check is ko hot at all) and the air condition stops
    To work saying that engine hot, ac turned off, I Change the sensor, cables, and still doing the same! Only works What can be??? Thanks

  4. Avataaar/Circle Created with python_avatars Charles Gould says:

    The ball cap under hat trick also works on big coats:)

  5. Avataaar/Circle Created with python_avatars Charles Gould says:

    When I talk about gdi… maybe 80% of people have no clue.. what I'm talking about.

  6. Avataaar/Circle Created with python_avatars The man who spoke For are benefits says:

    I have a 2004 Chevrolet express 3500 cargo van 6.0 I loss all the power every where no light no start no switch power nothing what do you think problems can be can you give me some ideas to tackle the problem??

  7. Avataaar/Circle Created with python_avatars Kyfer Ez says:

    What does negative fuel trim mean? What should they be? What does fuel trim tell us? I love your videos but need some more explanation on these diagnostics to understand what is going on 🙂

  8. Avataaar/Circle Created with python_avatars Burn Notice says:

    My car does this. I pulled 2 codes..P01684. P0442 the 1684 is a electrical connection problem somewhere. UPDATE.. I found the problem. Loose MAP sensor on intake manifold.

  9. Avataaar/Circle Created with python_avatars Hawk 1966 says:

    Friend of mine had an ancient Honda motorcycle 305cc engine, sorta an enduro/street bike. Thing was indestructible. He dumped it and wore a hole through the engine cover so we used JB Weld and fused a quarter over the hole. He dumped it again and tore off the shift lever. Being clever we just stuck a pair of vice-grips on the and shifted with them. Okay, every now and then you'd get your foot in there wrong and snap the vice-grips off. Nothing is as fun as limping the bike in 2nd or 3rd gear back down the road looking for your shifter. How we survived those years I do not understand.

  10. Avataaar/Circle Created with python_avatars Tyler Williams says:

    i love the time you take to diag your cars! im in a dealership and its always hard to get paid for the time spend vs time paid for diaging cars. but i always enjoy these and feel like ill be able to take what i learned from your videos to appy to my own work for that wonky car i may get one day!

  11. Avataaar/Circle Created with python_avatars Kasual Skeptik says:

    Lots of information to digest, which means I need to go learn what an O2 sensor is… 😉

  12. Avataaar/Circle Created with python_avatars Kent Koernig says:

    What does the heater control have to do with it? The left side went bad (heat only) I unplugged and removed it. Now I use vise grips of course. Could this be the problem? 05 1500 4.3.

  13. Avataaar/Circle Created with python_avatars TOP ADRENALINA says:

    Thanks a lot for all your videos I am learning a lot from you, greetings from México

  14. Avataaar/Circle Created with python_avatars dnl machine says:

    Does the vehicle go in Closed Loop for cranking, even when hot?
    Great vid Eric, keep on keepin on. LOL Red Green FTW.
    Stay gold.

  15. Avataaar/Circle Created with python_avatars Donnie Robertson says:

    Second time watching video. A+

  16. Avataaar/Circle Created with python_avatars Michael Knorr says:

    Air charge temperature sensor, maf are 2 potential issues. O2 sensors do have a limit to how much they can adjust the ratio.

  17. Avataaar/Circle Created with python_avatars Joe Kuehl says:

    Give it the beans!

  18. Avataaar/Circle Created with python_avatars Daniel Arney says:

    Egr and evap systems not supported, does that mean a 2500 series 8600 gvw and up truck/van will drive ok if these emissions components are not functioning as designed? This could eliminate some process of elimination for me. I can't even afford a 150 dollar live data scan tool, not that I could do much with information anyhow, shooting from the hip hanging parts dealing with gm's evil engineering, complicated by the questionable notion that local auto stores sell possibly failing parts. Thanks for the education, this shit is starting to really hurt me and many others. I'm going to end up breaking my knuckles and or head on these pos. Must be why my van is exempt from inspection, goment and manufacturers made some slime ball deals as per usual.

  19. Avataaar/Circle Created with python_avatars Bill Smith says:

    registration in the glove box has the year on it.

  20. Avataaar/Circle Created with python_avatars KAYQ321 says:

    The whole Spiel😁😁😉Greetings from Germany, great channel!!!😍😍

  21. Avataaar/Circle Created with python_avatars Long Lo says:

    it might a need ECT sensor…..

  22. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Cool progress found the green puss and the crusty wire and connector

  23. Avataaar/Circle Created with python_avatars Labrador McGraw says:

    You just can't beat the SMA channel – every video is a winner. We come for the knowledge, but we stay for the company. Unbeatable.

  24. Avataaar/Circle Created with python_avatars wayne wallace says:

    Understood good job again

  25. Avataaar/Circle Created with python_avatars ian 50 BMG says:

    What kind of rain is that on the windshield??? [SORRY] that Florida guy! ]…lol

  26. Avataaar/Circle Created with python_avatars Rick Ptak says:

    If the weather was warmer, the "Italian Tune Up" could possibly work, but then again NY State Troopers would put the kabash to that. It's easier to do the Italian Tune Up in the Southwest or in Texas where Interstate Speed Limits are 75-80 MPH out in the Rural Areas.

  27. Avataaar/Circle Created with python_avatars Michael B. Moore says:

    Love the snow!

  28. Avataaar/Circle Created with python_avatars PistonShack says:

    Thanks for this video.

  29. Avataaar/Circle Created with python_avatars Jorge Rodriguez says:

    Today's American Cars especially Chevrolet are nothing but Lemons I give them Like 30 years or maybe less to be in Bankruptcy If ever the Only one in the industry will be Ford

  30. Avataaar/Circle Created with python_avatars 1555yodude says:

    Any one else enjoy the turn signal click sinked to the open sign

  31. Avataaar/Circle Created with python_avatars Jim Wimmers says:

    u so married up dude!

  32. Avataaar/Circle Created with python_avatars Ozzy Krahn says:

    I like red green

  33. Avataaar/Circle Created with python_avatars Joe electronic schematics for auto says:

    Your coolant temperature sensor said it was 130 and you are an open loop you didn't get hot

  34. Avataaar/Circle Created with python_avatars Gary Alford says:

    G.M really sticks it to you on those wiring harnesses !!

  35. Avataaar/Circle Created with python_avatars Big Dave says:

    MAC tools must be a sponscer

  36. Avataaar/Circle Created with python_avatars Sam Rugtiv says:

    Well done Eric. Sam

  37. Avataaar/Circle Created with python_avatars Paultro 84 says:

    Just subscribed.👍👍 awesome videos.

  38. Avataaar/Circle Created with python_avatars Alexander Stollznow says:

    A car with a built in scan tool holder! that should tell you something….

  39. Avataaar/Circle Created with python_avatars Joe Lund says:

    Love that door Handel love it love it love it

  40. Avataaar/Circle Created with python_avatars Joe Lund says:

    Nice job very good

  41. Avataaar/Circle Created with python_avatars VashthStampeede says:

    I once attended a Bosch mini seminar about their O2 sensors. Their factory rep told all of us about how important it is to use the square box connector that comes with the universal sensors. Reason being that their sensors do not have the little holes just above the sensor body. This is for reference oxygen (air) for the sensor to operate properly. The Bosch sensors get their reference air between the actual wires and their insulation. The plastic box allows the reference air to enter and travel down the wires to the sensor. He said never leave out the plastic box with Bosch sensors. Just something I remembered from a 2012 automotive seminar including many manufacturer's representatives.

  42. Avataaar/Circle Created with python_avatars kevin9c1 says:

    Yup had to do a rear O2, gut the cat and a front O2 on my 99 Ram. So basically all the problems. Been good since though…

  43. Avataaar/Circle Created with python_avatars travis allen says:

    my blazer when I first bought it it would do that when hot turns out it was the mass air flow sensor replaced it and problem solved not sayin that whats wrong here

  44. Avataaar/Circle Created with python_avatars Chris Clark says:

    Seeing the vice grips on that door handle made me think that Mrs. O might have to take in her own hands again.

  45. Avataaar/Circle Created with python_avatars Jason Ross says:

    thank you for your detailed work, and your honesty when you do these jobs.

  46. Avataaar/Circle Created with python_avatars WOFFORDS OVERLAND JOURNEYS says:

    My Chevy Astro van has the same problem I'm glad you are doing this video man

  47. Avataaar/Circle Created with python_avatars mc2whls says:

    And remember. "If it ain't broke, you're not trying hard enough."
    (A Red Green saying)