Question about 1999 Mercury Grand Marquis

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When your driving an the car is coasting an you excelerate it make a vibration threw out the whole car, an the battery light is on but the alternator doesnt seem to be bad comes on an goes off periodically but starts right up when you crank it...

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I would first check the motor and transmission mounts. Then the universal joints.

Posted on Sep 04, 2010

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