yesterday my A/C started to only blow through the botom air ducts. I am guessing it is a vacum leak? any suggestons on where to start looking?

 

Mine did this. Its a 5 dollar switch at the dealer... its a black thing with 3 tubes... a damn i cant think of the name i just replaced it... AC check valve. Here. http://csce.uark.edu/~jgbertr/rb/vac_check_valve.jpg


It's the vacuum check valve. Replace that.

 

My check valve cracked and the a/c only blew warm air. Sound familiar?

Ryan

 

Thanks for the info. I'll try to find one of these tomorrow.

 

I had the same problem, the dealer charged me $85 to fix it.

 

Fixed it today, vacum line fell off. Thanks for the info guys, made it a lot easier to fix.