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Old 08-28-2008, 01:17 PM
tangofox007 tangofox007 is offline
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Join Date: Sep 2004
Posts: 8,618
It is controlled by the climate control system. It improves heater flow at low engine rpm. It should operate only when the heater is operating. You can get by without it, but I would disconnect it unless/until it is repaired.
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