Question about 2004 Pontiac Grand Am

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Yes so when I hold my foot on the break to shift from park to reverse or drive the car will jump. If you open the hood you can see the engine rock. Sumtimes you will have a similar feeling when the car shifts from first to second but never after that and never shifting into park.

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A new and significant jump or jolt upon engaging the trans could mean you have a broken front engine mount. Your car has a transverse mounted engine with a big mount holding it at the front of the car. It this mount goes bad the engine can "twist" under the hood. This sudden twisting or torque reaction can be felt until the engine runs into something solid *(usually whats left of the engine mount).

Don't wait on this one....see a mechanic A.S.A.P. A damaged mount is only going to do more damage as the engine twists back and forth under the hood. Stressing out the other connections to the engine, i.e., electrical, fuel, exhaust. Leading to more damage.

Posted on Dec 11, 2009

Testimonial: "Thanks, I will try changing the mount and go from there. "

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Sounds like you need to replace the motor mounts,do it some they can cause unusal problems and take out cv joins as well.

Posted on Dec 11, 2009

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