Mechanics

VIBRATION WHEN IN REVERSE

2003 Nissan Altima • 2.5L 4 cylinder FWD Automatic • 289,300 miles

Car idles fine and revs perfectly while in park or neutral, but in reverse with one foot on the brake pedal and the other slightly pressing on the gas pedal, I get a thumping noise in the engine bay for a split second and then the engine revs normally. This problem continues until the car reaches normal operating temperature. This only happens while the car is in reverse. It almost like a complete loss of power for a split second and then the engine will rev normally.
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Swcworldwide
February 24, 2014.




Check for a broken motor mount

Hmac300
Feb 25, 2014.


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