Too much heat
08-04-2010, 12:11 PM
#1
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Year: 1998
Model: Cherokee
Engine: 4.0
Too much heat
1999, Cherokee.
On a 70 degree day, I get 90+ degrees from the vent with the temp control all the way on cold, A/C OFF.
My guess is that the blend door is not fully closing, ( assuming this is a blend door system). The heat control is electrical not mechanical or vacuum.
Other than simply pinching off, or re-routing the heater hoses, how can I fix this?
On a 70 degree day, I get 90+ degrees from the vent with the temp control all the way on cold, A/C OFF.
My guess is that the blend door is not fully closing, ( assuming this is a blend door system). The heat control is electrical not mechanical or vacuum.
Other than simply pinching off, or re-routing the heater hoses, how can I fix this?
08-04-2010, 01:55 PM
#3
Not sure about my 99 but on my 94 when you turn the heat on/off I can hear the door closing and opening. You could get some one to turn it on/off while listening for the door in the pass. floor board.
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