Question about 2003 Jeep Liberty

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My a/c will blow hot air and then the car will start to over heat

I brought my 2003 Jeep Sport with a 3.7 L in 2007 and this past June 2009 my Jeep made a ding sound and I didn't see a light and soon smoke was coming out from under the hood. The Jeep over heated, I had previously taken it in to have the a/c fixed, they fixed the motor but not the connection to the fan motor. I took the Jeep back and the auto repair shop fixed the connection to the fan and my a/c and jeep worked fine until now. My Jeep overheats if I have the a/c on sometimes, then I have to giggle the wire that is connected to the coolent fan and the fan comes back on, is this a problem with the electrical that the manufactor should fix? I saw the same problem with the 2006 models.

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I'm sorry but I'm not sure what exactly the issue is. You stated the Jeep overheated, correct? Then you stated that you had previously taken the Jeep in for work on the a/c. Was this previous to the overheating? And which fan motor are you referring to? The interior vent fan motor or the cooling fan?
The cooling fan has nothing to do with the a/c. It may help increase it's efficiency but the a/c will work fine with out the cooling fan. If you are having trouble with the engine cooling fan after the work you need to return there and make them fix it. You must also remember that the coolant fan works intermittently when the temp reaches the cut-in an cut-out setting. As far as the plug on the fan itself it is a simple connector and easy to replace.

The thing that is of most concern should be, how is the vehicle running since it overheated?
The liberty has twin overhead cam aluminum heads. These are susceptible to warping caused by overheating. If you are need to constantly check and fill the radiator due to overheating you may have other issues other then the Coolant fan.

Please repost with what motor was repaired (a/c vent or cooling fan).
Also did you notice a sweet smell to the smoke when the Jeep overheated?

Posted on Sep 28, 2009

Out of warranty as you know so forget the Dealer. The wire giggle it not right. You need to unplug the fan connector and examine the terminals so it hooks up properly and makes good contact. The temp sensor and fan switch have to bring on the fan when told to do so,or you overheat. Are you sure the fan isn't cycling okey and moving the connector just seems to turn on the fans? Check service bulletins at the Dealer for a fix and do not pay them to look that up. If you have to, walk into the service bay like you own the place and talk to aTech off to the side. Tell me about the smoke and previous work you had done. I hate to say this but some of these folks put in problems trying to fix the first issue.

Posted on Sep 28, 2009

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