AFM is Active Fuel Management which used a solenoid to deactivate the lifters on select cylinders of the engine. Yours has standard lifters so no AFM. Get our GM news straight to your inbox. We'll ...
Guessing Headlights on MSN
Patent alert: GM is cooking up a smarter V-8 that saves fuel without killing the fun
GM files a patent for advanced cylinder deactivation, aiming to make V-8 engines much more efficient without sacrificing ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback