07/17/2026
If your GM truck or SUV is dealing with lifter noise, a collapsed lifter, misfires, excessive oil consumption, or camshaft damage, it may be time to eliminate the problem at its source.
GM’s Active Fuel Management (AFM) and Displacement on Demand (DOD) systems are well known for lifter failures. In addition, the frequent cylinder deactivation can contribute to increased carbon buildup on valves and in the combustion chambers, which can lead to reduced performance, rough running, and drivability issues over time.
We offer AFM/DOD delete camshaft upgrades, replacing the failure-prone components with a more reliable setup. Whether you’re repairing a failed engine or upgrading before problems start, this conversion improves long-term reliability and helps keep your engine running cleaner and stronger.
If your GM 5.3L or 6.2L engine is showing signs of AFM/DOD failure, don’t wait until the damage gets worse. Contact us to discuss your options and schedule an appointment.