Why is my heat not working in my Jeep Grand Cherokee?

While there are a variety of reasons your Jeep Grand Cherokee heater is not working, the most common 3 are a broken heater blower motor, a problem with the thermostat, or a failed heater blower motor resistor.

Why is my Jeep Grand Cherokee blowing cold air?

Your Jeep heater is blowing cold air and you’re not sure why. Two possibilities exist. One is a stuck thermostat. The other possibility is a bad heater core.

How do you replace a door on a Jeep Wrangler?

Turn the ignition to run and turn the climate control on. The actuator will begin to rotate clockwise. Once the key is in the correct position turn off the ignition and disconnect the battery. Push the new door onto the connector and slide the connector pin all the way into the installed door.

What should I do if my blend door drive shaft is broken?

If the black actuator to blend door drive shaft itself is broken, you will need a new actuator to blend door shaft, which has been discontinued by Jeep but is also available from us on the product page. We also do stock OEM blend door actuators.

What is wrong with my Jeep Grand Cherokee JGC?

What I ‎discovered was this is a very common problem with my model of JGC (1999-2004). I love my Jeep, but the person that ‎designed this blend door actuator system needs to find new work. The design is inherently weak, and relies on a ‎calibration phase that puts intense pressure on the weakest points in the system.

How hard is it to install a blend door?

The blend door installation is fairly easy. Replacing the re-circ door is more involved and requires pulling the dash panel back to get access to the re-circ door. It’s much much easier than the factory recommended process, but still more work than the blend door and will take most of a Saturday afternoon to do.