General Motors is starting to build light-duty Chevy Silverado 1500 and GMC Sierra 1500 pickup trucks without Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) technologies as a result of ...
This DFM Lifter failure frequently occurs - it happened twice on my 2020 Denali 1500. The first time (at 8,800 miles) the pushrod was bent into an "S" shape. GM replaced all the lifters on that bank, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback