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Old 03-14-2003, 06:55 PM
anthonyb anthonyb is offline
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Join Date: May 1999
Location: Sacramento, CA
Posts: 1,416
Aux water pump assists water flow through the heater core. You can tell if it's working by switching the climate control on "heat" or "defrost" and checking the pump for light vibration or buzzing.

2000 C 2 3 0 Sport :: 180k
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