My son's 82 jeep full size cherokee heat control panel appears to be not functioning. When the heater is turned on you can hear the motor on but no forced air weather you select defrost, floor or panel. Wondering if it's simply the controller or something more involved?
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert who has written 50 answers of more than 400 characters.
An expert whose answer got voted for 20 times.
Re: 1982 Jeep Cherokee no heat
If you can hear the motor(fan) spinning, check the linkage that controls which vents are open, also check for a vacuum leak as the vacuum hoses on a jeep that old go out frequently and many times control the switching for the heater/defrost/ac. your first thing to do will be to grab a manual for this jeep and check the actual location of the heater/vent/ac fan. there is always the chance that the fan slipped off the motor (usually doesn't happen, but the circlips have been known to fail)
have you tried it in any other position? ie: vent or ac
A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones). click here to download the app (for users in the US for now) and get all the help you need. Good luck!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You must remove the instrument panel and the A/C-heater housing to replace a heater core on a Jeep Cherokee.
I would be happy to provide complete instructions as well as diagrams if yu would like to take tis project on yourself.
Just click on my profile picture below and go to my FixYa profile page. Click the tab that says "Pro Services". When the page opens up, click any of the services listed. (It doesn't really matter which one - they will ALL connect you with me) Sign up for Email support. Be sure to include the Year, Make, Model, Engine Size, and a brief description of what we are trying to fix in your message (just so I don't mix you up with someone else). Youi can also do this by clicking any of my ads that you may see on FixYa.
Be sure to mention WHICH 1999 Cherokee you have...Cherokee Laredo, Grand Cherokee, Grand Cherokee Limited, etc. I would also need to know if you have MANUAL heating and air conditioning or if your vehicle is equipped with AUTOMATIC climate control.
Check the relevant fuses with a test-light or VOM, don't just "eyeball" them as they often break at the very end. Then check the heater/A/C relays on the electrical panel. The heat/cool is controlled by a stepper motor which opens and closes the air "mixing box", but it won't work with a bad relay. If all of those check-out, you need a OBDII code reader to check the "engine" computer, as it controls the electrical modules. Also check the fusable links going to the electrical panel, and the cable from the battery to the panel. The cable may be corroded in-two and you'll never see it, so no juice to the panel, no juice to the heat/AC system. (I had a Dakota do that.) PS: Double check the grounds that they aren't corroded. Learned about that from a BSA Gold Star production racer.....
Its not the switch or the controller in the instrument cluster. On my jeep there was a panel on the passenger side under the dash board. It helped me find it by turning on the heater and going toward the sound of the blower. On the backside of the panel was a series of little coils that control the different speeds. one of those coils had been broken.
It sounds like the heater control panel, where the switch is attached, try to remove it from the dash so you can have a better look behind it, If all appears to be correct then the switch itself has gone.
C1 & C2 in your panel are most likely one of the culprits, if no power at heater at seat. Sounds like testing for power at seat switch is easier to do than get at these circuit breakers in the panel. If you have power at switch at seat, then it's not the fuse/circuit breaker. Good reading at this link for you.