Question about 1990 Isuzu Trooper
Replaced t-stat..chkd and water pump is pumping seems to be circulating but no heat to cabin..wondering if their is a secondary pump for heater core not allowing to make full circulation..?
No such pump! Make sure you have anti-freeze in the radiator. It circulates better than just water, because water boils and turns to steam (goes UP) proper antifreeze helps it not have pockets of steam/air.
Posted on Dec 22, 2008
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Posted on Jan 02, 2017
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