View Full Version : 1992 pontiac sunbird L.E. AC vacuum system

07-11-2008, 01:24 PM
Can someone please tell me about the heater and A.C. vacuum system controller in a 1992 Pontiac sun bird? I think someone may have crossed the vacuum lines that control the air ducts on the heater box. There are 3 vacuum control canisters under the dash board with color coded vacuum lines, How do I find out if they have been crossed??? I do not have the manual.

07-11-2008, 05:04 PM
richk - Sorry, but we provide this service for users of our manuals who might need a little extra help - it's not a "free" automotive information service. If you get the book for your car and still need help, you can contact us again.