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Reply To: 2021 Suburban collapsed lifter at 14K miles

#763005
rogerssj
Participant

Yesterday 5-28-23, I took a short trip to the dump for household trash. I usually use my 2007 GMC 1/2T,. but it is in the body shop. At the end of the drive, I heard and felt a thump which sounded like it was coming from the rear. Knocking noise followed. Then soft but identifiable exhaust pops as I pulled on the road. By the time I returned home, the knock was louder and the pops more prevalent. Opened the hood, loud knocking from the right bank of the motor, probably #2, maybe #4. I am certain this is another failed lifter defect at just over 15K miles.

Today, 5-29-23, I spoke to the Sales Manager (SM) because the General Manager (GM) was “in conference.” The GM told me to keep in touch with him if I had more problems, which I appreciate. SM accepts the repair is on the dealership and GM. He has suggested a replacement vehicle might be the answer, but he is the SM after all. I said I wanted the engine failure diagnosed by a mechanic and I thought a replace crate motor from GM might be where we are headed. He did not disagree, he though that might be the solution too. I will get a loaner this time since my GMC is not available and I have June business trips. Headed to the dealership Wednesday.

I’ll keep you posted if you are still interested in my problems.

Thank you for your service to all veterans.

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