Hey, folks. So my wife has been driving the 2005 GC due to the snow here, and her CX-9 having crap tires right now...but when we start the Jeep in the COLD, we get a LOUD, high-pitched squeal from under the hood. If we turn off heat and A/C it goes away.

Think that's a belt that's loose due to the cold? Or is it likely something more serious?

 

Start with the belt. The cold will mess with rubber.

Then look at the pulleys.

 

that may have a sring loaded belt tensioner that could be weak or seized not letting the spring do its job. you can give a SLIGHT tug on the belt to see if it moves, pull to hard and if its seized it won't go back and then you may be sol. without a new one handy.

 

OK, thanks all. I'll start with that...tomorrow...when it isn't -25 outside.