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Jfrahm Jfrahm is online now
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Join Date: Oct 2002
Location: Boulder, CO
Posts: 1,207
good tips. It should be determined if it's rattling around due to bad engine mounts, leaking exhaust (sampling tube rusted off?) or if it's actually running badly at idle.

The alternator is probably fine, the dash gauges generally read low but it's easy to check with a voltmeter.
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1987 928S4
1992 968 cabrio
2009 957 Cayenne GTS
Old 08-28-2014, 01:34 PM
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