See full version: Jeep Liberty; Heater Not Working Diagnosis
The job of your Liberty’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up. here
While not having enough coolant may make your engine run hotter, it can also cause your Liberty to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself. more
You can verify this by checking the coolant level by taking a peek at the overflow reservoir. The overflow reservoir will be connected to the radiator by a tube coming from the top (usually right by the radiator cap). It should have separate lines to indicate “cool hot” and “cool cold”. Some vehicles only have full hot. Never touch the radiator cap unless the vehicle is ICE COLD. more
If you look at your temperature gauge, and the engine is running hotter than normal, but there is not heat coming from the heater you may be having issues with the water pump. Try taking the vehicle out of gear and revving the engine a little. If you feel the heat start to blow hot for a few seconds that’s an indication of a bad water pump or low coolant. Also, the serpentine belt going to the water pump going bad can it not turn as fast as it needs to.
A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant. The exception to that would be when you would have reason to believe that the hose going from the reservoir to the radiator is clogged. Anytime you’re putting your hand around the radiator or fans in the engine assume that they are hot and that the fans can kick on at any time, even without your key in the ignition. more
Evidently the blend door gets stuck on these jeeps and because of the labor involved in removing the entire dash. the fix is around $700 at my very good mechanic shop and that is with the discount he gives me. Wow. guess I'll just continue to drive around in the winter freezing my butt off! more
I am having a problem with the heat and losing oil, I have replaced the thermostat and radiator, Also the heater switch twice! [links]
- Cheryl G., Brookings, SD, US
I watched video and articles on web, flushed heater core twice. I feel Jeep should have a recall on this problem. It seems a lot of owners have this same problem. Please let the proper division be notified.
If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. more
Another way to prevent getting this page in the future is to use Privacy Pass. You may need to download version 2.0 now from the Chrome Web Store. [links]
If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.
Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.
If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. more
Another way to prevent getting this page in the future is to use Privacy Pass. You may need to download version 2.0 now from the Chrome Web Store. [links]
If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.
Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.