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Michael9218 · 04-07-2021, 06:41 AM

The T-stat wasn’t opening after pump replacement, so I suspect that the T-stat closed at high rpm on track and maybe caused too much pressure for the pump impeller blades. Seems unlikely, but can find no other explanation for both to have failed.

04-07-2021, 06:41 AM	#187
Michael9218 Lieutenant 595 Rep 485 Posts Drives: 2007 Z4 M Coupe Join Date: Oct 2012 Location: Woodstock, GA iTrader: (0)	The T-stat wasn’t opening after pump replacement, so I suspect that the T-stat closed at high rpm on track and maybe caused too much pressure for the pump impeller blades. Seems unlikely, but can find no other explanation for both to have failed.
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