Heater problems
#1
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Year: 1990
Model: Cherokee
Engine: 4.0l
Heater problems
So now that it's going to be in the lower teens all week I've decided I need to get my heat fixed... But I would like some guidance on this project. I have a 1990 4.0 and when I turn the heat on it is very faint and only comes out of the foot area and the defrost vents, yet if I put the vent option on it comes out of all my vents except my feet area. So question is what could cause me to have very faint heat only coming from the defrost area and feet area when the controller is set to heat? Thanks in advance
#2
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Year: 1999 Sport Road Rash Monstaliner
Model: Cherokee
Engine: 4.0L I6 Power Tech Engine
Have you searched for this yet? There's alot out there on this subject especially right now with this wonderful weather
First thing you should do if you haven't is flush the heater core. Then make sure your blend door is working properly.
First thing you should do if you haven't is flush the heater core. Then make sure your blend door is working properly.
#4
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Year: 1990
Model: Cherokee
Engine: 4.0l
Could anyone direct me to a write up on how to check my bend door without pulling the dash apart? Reason being is the jeep is my daily driver
#5
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Year: 1999 Sport Road Rash Monstaliner
Model: Cherokee
Engine: 4.0L I6 Power Tech Engine
#6
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Year: 1996
Model: Cherokee
Engine: 4.0
Last edited by loligator; 01-28-2014 at 12:14 PM.
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#8
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Year: 2000
Model: Cherokee
Engine: 4.0l
Wait a sec....I have been reading up on this as mine is also not heating. I checked my 2000 XJ's blend door and it appears to be cable operated! I turned the temp **** left and right, it moved a cable up by the passenger's left foot.
#12
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Year: 1999
Model: Cherokee
Engine: 4.0
Either someone put a '97-'98 HVAC Unit in your 2000 XJ or you don't have a 2000 XJ. That Blend-Air Door crank set up was discontinued in 1999.
In a way its much better than the servo motor door actuator found in the '99-'01 XJ's because it's less likely to fail.
In a way its much better than the servo motor door actuator found in the '99-'01 XJ's because it's less likely to fail.