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Old 11-19-2012, 09:43 AM   #6
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 2,534
My Ride: 2004 330xi, 3 pedals
Quote:
Originally Posted by STiGLiTZ View Post
Possibly a bad thermostat causing the pressure back up, if its not able to close the loop and get back into the radiator.
The tstat won't block the flow of fluid if it fails.
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