Remember that using an AFM disabler will not resolve problems with bad lifters or faulty camshafts. On the contrary, forcing ...

The failure is so much worse than the lifters. There is a systemic failure at GM right now where they are ignoring these problems, and have been, since the AFM/DOD system first debuted in 2007.

The failure is so much worse than the lifters. There is a systemic failure at GM right now where they are ignoring these problems, and have been, since the AFM/DOD system first debuted in 2007.

The problem is that—at least when initially introduced—the AFM-specific valve lifters had some issues, so chances are the reason you'd want to get rid of the AFM on a stocker is because of an ...

Afm is a disaster!. Was using quart of oil ... Wouldn’t trade! ! Terrible engine problems lifter broke at 127,000 miles. Had to replace engine. Always used a quart of oil every 2000 miles.

The AFM lifter buckets must also be replaced with ... COMP has solved this problem with its phaser limiter kit, which limits cam movement to 22 degrees. See All 33 Photos 17.

Short-block problems are similar to the LS3. AFM problems (450 hp, 0.500-inch-lift cams, or high rpm):Half the lifters and their corresponding cam lobes are unique. Comp and LPE offer AFM-style ...

My 2008 Chevrolet Suburban with a 5.3 liter V-8 engine has been diagnosed with faulty valve-lifters and camshaft. The engine uses GM’s AFM (active ... this is a known problem.

The two problems were so pervasive that GM ... out that even though the 5.3-liter LC9 engines with AFM were known to suffer from lifter failures, the newer EcoTec3 engines with Dynamic Fuel ...

Check Out an L99 Cam Swap, While Retaining VVT VVT Cam Swap: Fear VVT and AFM no more! Swapping cams on an L99 is easy and good for tons of power ...