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99 A8, does transmission rattle on cold start (30 F.)?

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Old 11-25-2008, 07:19 AM
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Default 99 A8, does transmission rattle on cold start (30 F.)?

I know about the engine rattel for a few seconds on cold mornings but there seems to be a rattle that continues for longer and it seems to come from the tranny.
Old 11-25-2008, 08:34 AM
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Default it might be one of your catalytic converter. same area so one might think its the tran and

they tend to start rattling with age as the internals break down.
Old 11-25-2008, 09:14 AM
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Default It could also be

the tranny pump cavitating. We have the same issue over on the C4 forum with rattling sound coming from the tranny until it warms up. The possible fix could be Tozo's famous "trim 1/4" off of the filter trick", but I haven't tried it yet. I've just been living with it for the past 1 1/2 years, and the car runs fine, but that tranny doesn't grenade like the A8's.
But, as <b>Ali A8</b> says, it could very well be the cats too.
Old 11-25-2008, 04:51 PM
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Default

Thanks guys.
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