5.3 & 6.2 Lifter Failures Compilation Thread

[BlaineBug]

Got a 2019 Escalade on the schedule for tomorrow.

Well there is nothing to really see at this time as no teardown was conducted, however it is obvious - the #1 cylinder exhaust push rod is not moving, so the AFM lifter is permanently collapsed.

 

[BlaineBug]

Here's a 2020 GMC Yukon with a 5.3 liter and 83,000 miles that experienced both camshaft wear and lifter wear simultaneously, not really sure which one happened first. Additionally, just about all of the cylinder walls experienced scoring. The engine was sent out to a local machine shop but didn't come back much better so now the call is for a new engine.

 

[BlaineBug]

And here's yet another, a 2015 Chevrolet Suburban with a 5.3 liter and 137,016 miles which featured a fractured lifter (roller broke off of the lifter) which subsequently damaged the camshaft as well.

 

[89Suburban]

Makes me glad my 355K sh*t pile is still running dang.