File · GM-5-3-AFM-LIFTER

5.3L V8 AFM lifter failure

Manufacturer

GM (Chevrolet/GMC)

Years

2014–2019

Where people complain about this

Reddit reply — long

That sounds like the **5.3L V8 AFM lifter failure** issue — it's a known defect on GM (Chevrolet/GMC) Silverado/Sierra/Tahoe from 2014–2019.

Active Fuel Management lifters collapse, causing misfires, ticking, and in some cases bent pushrods or camshaft damage. $7K–$10K repairs common.

Source: In re GM AFM Litigation (2022).

If you've taken it to the dealer 2+ times for the same thing, you might have a lemon-law case. I built a free tool that checks your specific car against active class actions and NHTSA records — defectfiles.com. Takes about 60 seconds, no signup. Worst case it tells you nothing's there.

Reddit reply — short

Sounds like the 5.3L V8 AFM lifter failure issue — well-documented defect on GM (Chevrolet/GMC) 2014–2019, In re GM AFM Litigation (2022). If your dealer's tried to fix it 2+ times you may have a case. Free 60-sec check at defectfiles.com.

Driving a GM (Chevrolet Silverado? Run yours through the check.

Check my car →