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Which GM engines skip AFM? Here’s the list
Shoppers who care about long-term reliability increasingly want to know which General Motors engines avoid Active Fuel Management, the cylinder deactivation system that has drawn scrutiny from some ...
In an effort to help meet more restrictive emissions standards, GM launched a technology in 2005 that deactivates engine cylinders during undemanding driving scenarios. Known by both Displacement on ...
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Federal judge denies motion to split GM lifter lawsuit over AFM/DFM, keeping Silverado and Sierra V8 class action intact
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.
General Motors's Active Fuel Management (AFM) technology utilizes hydraulic valves, solenoids, and advanced software to shut down half of the cylinders in a V8 or V6 engine to save fuel. The system ...
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 ...
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