What would cause the motor to shake in a 1999 grand Prix supercharged

Asked by Feb 15, 2014 at 10:33 AM about the 1999 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

Question type: Maintenance & Repair

2 Answers

270,255

Broken motor/trans mounts.

1 of 1 people found this helpful.
74,075

Misfiring. Is your service engine soon light on or flashing? HTH. -Jim

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