Question about 2000 Jeep Wrangler
Try flushing the heater core should be two rubber hoses feeding into the firewall disconnect both hoses and flush with garden hose in bothe directions multiple times
Posted on Oct 26, 2012
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Posted on Jan 02, 2017
THis is a know problem with Jeep GC. If only one side is cold and the other is hot and there are no controls error codes. It is likely a broken temperature blend door on the faulty side (w/ dual controls). Dealer charges a lot to fix ~$800. There is a kit and instructions sold on EBAY to replace the part for $100. Seller claims that a relative novice can fix w/o removing the entire dash board as the dealer does. Has sold hundreds of kits....people seem satisfied....you may check it out. Search Heater Blend Door Jeep on ebay. Replacement parts are aluminum instead of OEM plastic.
Self Diagnostics on HVAC system. Jeep GC has built in diagnostics and will return error codes on the temp display if it is otherwise. Simple to display.
1) Press A/C and Recir button simutaneously
2) Rotate driver temp control knob clockwise then release buttons
3) If no controls error a code of "0" or "00" will be returned.
4) Error codes listings can be found on-line if anything but zero
Dealers charge $45 to run the same check
Posted on Jan 21, 2009
My 1999 limited does this. When i bought it off the guy he said that its because of some flap down by the passengers left foot. In mine the passenger air barely even blows because of this.
Posted on Jun 20, 2009
Most of the time it's because the cooling system is not completly full just a quart low will make it do this and if it's low theres a leak somewhere so it needs to be found and fixed. as simple as the hse from the raditor cap to the resivoir or the cap being bad or just dirtly. If anything appears dirtly not clear fluild green or red but clear then you need to flush the system. and then make sure its filled completly and recheck after youve drove it as its diffacult to get all and air out and your problem will be corrected.
Posted on Dec 05, 2009
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.....
Posted on Mar 27, 2010
Testimonial: "Many thanks, Walker. Tt was the fuse in the kick panel. Looked ok, but NO continuity. I used the 10A spare and everything worked. Thanks!"
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