Sort of a rattle or thunk upon start up. Motor mount? - Page 2 - G35Driver

#18

11-30-2011, 03:57 PM

DaveB

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Quote:

Originally Posted by Infity020710

so was there a solution for this? My car 04AT with about 50k on it makes this little rough grinding noise when i start the car. Doesnt happen all the time but usually when its been siting for a couple of hours.

That's likely the timing chain rolling across the tensioner with minimal oil coverage (cold oil is thick) on initial start up. It's a non-issue.

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