Thread: Vibrating Idle
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Old 10-29-2009, 12:53 PM
cooter2 cooter2 is offline
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Re: Vibrating Idle

Sounds like the motor mounts need replaced. there are a total of 4 mounts, some of them are actually called tranny mounts (3 of them i think). Replace them all and it will be smooth as new. This has happened to me a couple times in the 10 years i have owned my 99 alero.
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