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heat

Old Feb 4, 2011 | 07:32 AM
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bigdcyall's Avatar
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From: Cold Land, Michigan
Year: 1999
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Engine: 4.0
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I am having a real problem with my 99 sports heat. I replaced heater core and water pump and I just flushed the coolant yesterday. I have inspected the radiator and all the hoses for leaks and there does not apear to be any. The heat worked fine when I started it up yesterday after the flush, but today it just blows cold air again. This is a real problem cuz I live in Michigan and its 12 degrees right now! HELP!

-Thanks
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Old Feb 4, 2011 | 08:30 AM
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From: In the middle of Minnesota!
Year: 1999
Model: Cherokee
Engine: 4.0
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Primary suspect here is an issue with the BLEND DOOR not allowing heat "into" the cab.

With a new heater core and water pump, I would assume that both hoses from the heater core are hot?
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Old Feb 4, 2011 | 11:49 AM
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Yessir.
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