Its been happening the last couple days, everytime I turn the car off I hear this kinda hissing sound near the glovebox area. I've had my CL since Jan 2007, and I dont ever recall hearing this sound ever.

Does anybody know what the problem could be?

 

AC system equalizing pressures across the evaporator expansion valve. Not sure but sound can change w/ system charge level or outside air temp. As long as it's cooling OK, I wouldn't be concerned unless vent outlet temps have increased w/ AC on.

I've recently noticed a louder expansion valve noise on shutdown for my daughter's 2.2CL and it's cooling fine. It's probably quite a bit warmer in Houston, than Vancouver

good luck

 

Oh okay if its just that then i wont worry about that..

Haha yeah for sure its way warmer in houston that van city.. Its getting pretty cold here now though.

 

Yea It's the AC. Nothing to worry about.