hot air!!
06-01-2011, 02:38 PM
#1
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Location: Juarez,Chihuahua, MX
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Year: 96
Model: Cherokee
Engine: 4.0
hot air!!
My defrost won't stop blowing hot air ... I have it on cold fan off and it still blows hot. I have searched previous threads and it says I might have a vacuum leak ..checked and no leaks .. what can it be
06-01-2011, 03:31 PM
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Year: 1996
Model: Cherokee
check for a vacuum line that goes from the vacuum football under the battery tray. that line is the vacuum for the HVAC and if anything happens to it...
06-01-2011, 03:45 PM
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Year: 1996
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gotta check the vacuum line also, not just the ball. but yes that is the ball I am talking about. There is a vacuum line that runs from there, usually under the battery tray, to the HVAC controls.
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06-17-2011, 09:03 PM
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Year: 1992
Model: Cherokee
Engine: Inline 6 4.0L
I took that EGG out years ago and put a small watch battery in the opening of the hose fitting... haha not proud of it, but probably holds the same pressure
06-17-2011, 09:04 PM
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Year: 1992
Model: Cherokee
Engine: Inline 6 4.0L
well the Chevy astro van I drive for the state foresters was spewing hot air constantly from defrost, so I looked up the fuse diagram and checked the AC/ rear defrost fuse. It was blown, a simple 20 A micro fixed it.
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