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Old 06-10-2002, 01:45 PM
Mercedes Fred Mercedes Fred is offline
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Join Date: Jul 2001
Location: Kingston, Ont.
Posts: 201
intermittent knocking

on my '88 300e, after heating up to operating temperature and after a long highway run, im noticing that there sounds like a knocking from the engine during deceleration and at idle. Theres no knocking at all at startup or in short hop city hauls.

is this normal
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