rear heater blows cool

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whitelightning99

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Front heater is nice and hot, rear heater just blows cool, no heat at all ,YES i had the knob turned in "red" position Both on dash,over head control even the rear over head control NEED some advise thanks
 
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whitelightning99

whitelightning99

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i am goona guess it be the blend door motor in the rear were the heater is behind the panel cause my front blend door still works
 

expo dude

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the rear are known for clogging up sounds like you need a heater core or check the lines are flowing good in and out of the core when i had to look at mine it was so clogged up it had to be replaced also it had gunked up the lines at the same time i was able to blow out the lines to the rear and free them to flow then change the core all working great now
 
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