lifter

  1. X

    6.2L Lifter issue - ?

    OK, I’m mad that I have to write this but after I bought a used 2021 Escalade and replaced a 2021 Tahoe with issues (burning oil like crazy) I‘m having a new, serious issue. Guess it’s the lifters. Car is built in Oct 2020. Last week I started the engine and it was shaking but then after a few...
  2. dustyb

    AFM/DFM and Lifter Question - Moving from 07 Denali to Newer

    Heya folks, Our 2007 Yukon XL Denali is getting tired (and rusted out) at nearly 350k miles and we're looking to update. We're looking to go somewhere between a 2014-2020 Denali or Escalade (love the 6.2), but we're leery about the AFM, lifter, and push rod problems. We usually buy our vehicles...
  3. iboughtatahoe23

    Lifter vs exhaust tick?

    What does this sound like to y’all? Lifter or exhaust leak? Lifter or exhaust leak #2
  4. iboughtatahoe23

    2014 Tahoe ticking update

    having trouble troubleshooting a ticking noise… I was told exhaust leak on drivers side (rear stud snapped off inside the head) but I don’t see any soot or feel any air. I picked a stethoscope up and started listening everywhere. I listened to both manifolds, both sound good. Here’s where it...
  5. Dustin Jackson

    Guys I need help figuring out this engine rattle

    Hey guys I think it has come time for my Tahoe for a AFM lifter delete. I think I am having a lifter failure but this sounds different from other videos I've seen. Someone said the pushrod might be out of place causing this sound? What do you think?
  6. newtahoeguy87

    1999 Tahoe/Lifter or Exhaust Manifold?

    Hey guys my recently purchased 99 5.7 Vortec Tahoe has developed a tick on cold starts. I’m hoping someone knows a way I can find out if this is a lifter issue or maybe a exhaust manifold leak. (Or ruling one or both out) The ticking begins at cold start of engine and stops shortly after...
  7. T

    Lifter Failure 2021 Tahoe 16,000 miles

    It is funny that Onstar Notifications emails me if my tire pressure is low or my oil life is 30 % but did not let me know my lifters would fail at 16,000 miles and leave my wife and daughters stranded. I will say that Pete Moore Chevrolet in Pensacola, FL did replace the lifters under warranty...
  8. 0

    05 Z71 5.3 lifters

    I recently did a lifter job on my 5.3 @197000mi. the only issue before replacement was the infamous lifter tick. After replacing the lifters, and torqueing to specs in Haynes manual, upon start up still sounds like a small diesel engine, and the oil pressure has dropped to around 5-10. used to...
  9. T

    Should I buy a 2021 Yukon AT4?

    Looking at pulling the trigger on a 2021 AT4 due to be produced first week of July. I had a couple of questions and thought this would be the best place to ask them. 1) should I buy this one with everything except Adaptive Air Ride or build one and wait? Is Adaptive Air Ride worth it if you...
  10. Chris Z

    Intermittent lifter tick on cold start

    ‘09 SSV. Has an occasional loud ticking on cold start. Usually goes away in a matter of seconds. Sounds like a collapsed lifter that is stubborn to get pumped back up. Purchased a Range AFM disabler today. I’m hoping if that lifter stays pumped up it won’t get worse. Anybody have good...
  11. N

    Help please: Cam & Lifters replacement

    Hi there I have a 2007 Tahoe LTZ 5.3 flex fuel, It has 157k miles and I just bought it from a dealership as is. It looks like some oil changes were not done in appropriate timing as the oil was a bit caked on so I did some extensive repairs. I had a lot of problems with oil pressure so I...
  12. F

    Pulley, Lifter, AC Compressor Clutch Issue

    Having issue with the noise in the car. There is noise when at idle, when i speed up you cannot hear it as much because of ac and engine. I have changed the serpentine belt and pulley. Still noise. Took to mechanic, he couldn't figure it out. He changed out the oil and sprayed the belt with...

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