Malibu hesitates on acceleration
If you own a 2004-05 Chevrolet Malibu with the 2.2L (VIN F) engine and your malibu car hesitates on acceleration, read this. Other symptoms may include a drop in engine RPM while doing parking lot maneuvers or during deceleration. And you may also experience an engine stalling condition.
All these conditions point to a bad crankshaft position sensor. Unfortunately, replacing that won’t help. The real cause is a voltage spike caused by the radiator fans kicking in or out. GM has developed a spike suppression filter (Part No. 15242641). They offer it as a separate wiring harness with a built in diode to kill the spike. Just disconnect the fan connector and pop this harness in between the fan and old harness. Use zip ties to secure the wires.
©, 2013 Rick Muscoplat