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Old 11-13-2008, 04:41 PM   #1
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Default BAM BAM BAM when I accelerate fast, sounds like

a washboard. Any clues?
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Old 11-13-2008, 09:26 PM   #2
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Think we need a little more to go on then that. Is it coming from the engine, trans, front of car, back of car. The more info we have the better chance we have of finding the problem
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Old 11-13-2008, 10:14 PM   #3
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Default Front of the car...

...it seems easy to create the issue when turning right.
Thanks for the reply
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Old 11-13-2008, 10:18 PM   #4
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Jack up the car and check the front left wheel. Look for play in any direction. Also check to see if the wheel turns smoothly. If you find nothing, then check the right side same way.
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Old 11-13-2008, 10:20 PM   #5
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If the sound is coming from deep inside the wheel well to one side, I'd say one of the CV joints is giving out.
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Old 11-14-2008, 03:08 PM   #6
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On further listening/feeling, it feels like the shift from 1st to second.

TIA

Neil
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Old 11-14-2008, 03:31 PM   #7
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Check your trans mounts. There'* one in the front left side. Mine had a shimmy when a bolt fell out. I put it back and it'* all better now.
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Old 11-14-2008, 03:37 PM   #8
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Thanks Dan.

Is there a link for a pdf file manual of the 1999 Bonneville anywhere?
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Old 11-14-2008, 04:20 PM   #9
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Not that I know of. I might be able to find a picture of the mount when I get home
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