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Mercury Cougar Problems

Engine misfire due to damaged engine wire harness on Mercury Cougar

Problem Description and Possible Solution


Engine misfire could be caused by worn or broken motor mounts that raise the motor on one side while the vehicle is accelerating. The stress on the engine control wiring harness can cause breaks in the injector or sensor wires, which then causes driveability concerns such as poor fuel economy and engine misfires.

(3 people reported this problem)

Mercury Cougar Vehicles With This Problem

RepairPal Verified
Average mileage: (–)
Engine affected: 4.6L V8
2 model years affected: 1994, 1995
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