What Does An AFM Disabler Do And Does It Cause Engine Problems?
General Motors's Active Fuel Management (AFM) technology utilizes hydraulic valves, solenoids, and advanced software to shut ...
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Which Cars Have GM's LS4 Engine Under The Hood & How Much HP Does It Have?
The LS4's aluminum engine block featured 3.78-inch cylinders ... other low powered LS engines received names out of the spotlight, like the LM7. GM's introduction of AFM on the LS4 was potentially ...