Question about 1999 Jeep Grand Cherokee
My heater started making this horrible shrieking noise when I'd first turn it on when cold. The other day it was doing that, I smelled burnt wires and now only my high heat setting will work, which I know is not good at all. Any suggestions on how to fix this?
Replace the blower motor and the blower motor resistor....bad motor blew out resistor and went to d\efault mode which is high setting only...good luck...Lee
Posted on Feb 23, 2012
Check the connector to the blower motor it should be located on pass. side under the glove box by where your feet would go when sitting in the seat, For the contacts on that connector will corrode short it out and fuse the plastic conn. to the fan itself, also don't forget to disconnect the batt.
Posted on Jun 02, 2013
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Posted on Jan 02, 2017
your heater core is definitley leaking and your blower is pushing the vapor into the cabin. It will only get worse. You can minimize the smell by not running your heater or defroster, but you wont prevent the coolant from leaking and potentially getting worse. Sorry to say, the core will need pulled and repaired or replaced. Sometimes stop leak additives will solve the problem if its not too severe. I have never been a fan of them, its only a band aid in my view. also if u got pets afoid leeting they smell the antifreeze very toxic can kill pets easily. hope this helps. rate above 4* cheers
Posted on Mar 12, 2010
SOURCE: CAR HEATER
Hi James,I would suggest you have the problem looked at be an auto electrician. If there is a short circuit it could cause a fire and we don't want to hear we have a toasted James. The electrical parts of the heater are the fan and the electronic auto controls (if fitted). If you would like to tackle the job yourself let me know and we can go through it together. Regards John
Posted on Dec 01, 2011
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