A federal judge has handed General Motors a key procedural victory in the long-running GM lifter lawsuit, denying a late-stage effort by plaintiffs to split the case into two separate legal battles.

Round Rock, TX owner Danny Duarte thought his 2020 GMC Sierra 1500 was "solid" after 88K miles and 5K oil changes. Then, the ...

Silverado owners found a reliability top priority: the 8th VIN digit "E" confirms the 5.3L V8 lacks DFM hardware. This ...

We discovered that number 4 lifter on the AFM has collapsed. I have had the heads cleaned resurfaced and tested. No problems. I have ordered a AFM delete cam kit and a programmer. AFM is going away… ...

General Motors’ Active Fuel Management system has been around long enough to earn both fans and vocal critics, and that split has created a simple but urgent question for buyers: which GM engines ...