Quote:
Originally Posted by Craig
I've never tried to take the check valve apart either, but I believe it's only function in to prevent back-flow into the heater core when the monovalve is de-energized with the car shut off. When the engine is running, the water pump should not allow back-flow anyway.
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The reason I'm a little suspicious is for a couple of reasons. The a/c, on occasion, is only moderately cool and in the winter I can hear the heater core filling with water when heat is turned on. With mention of this check valve, I wonder if the two are related?
06-13-2008, 10:58 AM
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