No Heat.....!
#3
Senior Member
Join Date: Sep 2008
Location: Sioux Falls, SD
Posts: 897
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0L
Does yours have the stupid "Heater Control Valve" in the heater core lines? If so, go buy 3 feet of 5/8 heater line and 3 feet of 3/4 heater line and delete the valve.
You will also need to flush your heater core. It's probably plugged up if your XJ has that heater valve.
You will also need to flush your heater core. It's probably plugged up if your XJ has that heater valve.
#4
Member
Join Date: Oct 2017
Location: New Mexico
Posts: 227
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Year: 1998
Model: Cherokee(XJ)
Engine: 4.0 L I6
Cherokees have notoriously bad heater cores, they go out a lot. When I bought mine the heater core was removed and the hose going into it just made a loop right back into the coolant system without going into the core. I think you can look and see if antifreeze is dripping green onto your passenger side floor mat. Replacing them is a pain because you have to take off all the dash to get at it.
#5
CF Veteran
Join Date: Feb 2016
Location: Northern New Mexico
Posts: 3,683
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6 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Cherokees have notoriously bad heater cores, they go out a lot. When I bought mine the heater core was removed and the hose going into it just made a loop right back into the coolant system without going into the core. I think you can look and see if antifreeze is dripping green onto your passenger side floor mat. Replacing them is a pain because you have to take off all the dash to get at it.