Question about 1995 Jeep Grand Cherokee

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Heater and defroster cold

Hose from pump warm,return hose hot. flushed heater core, still cold.

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Sounds like a circulation problem could be the thermostat or a water pump issue, Ive had a similar problem on my Ford Taruas a couple of years ago. I replaced the thermostat and the problem was still there,so I replaced my water pump later. During my inspection of the old pump after removal I had noticed a few of the fins on the internal part of the pump were missing. This probably didnt allow the pump to circulate the coolant fast enough through the system. After replacing the pump and thermostat my problem went away, I hope this helps.

George.

Posted on Nov 27, 2008

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