1998 Mercury Mystique Repair Question
Topics covered: Heater, Heater core, Tool.
Mileage: 90,000 miles.
Mileage: 90,000 miles.
Asked on April 20, 2012
How to fix, 1998 mercury mystique stuck in default defrost?
1998 Mercury Mystique stuck in default defrost, how can I repair this problem (IS THERE A VIDEO & WRITTEN INSTRUCTIONS ON HOW TO FIX THIS PROBLEM). Thanks again!
Asked by HUTCHAnswer
Replied on April 20, 2012
this is caused by low vaccum.youll need to check the vacuum at the servo that controls the defroster door.
Replied on April 21, 2012
Hi,cadieman! HUTCH here, this servos your talking about,is this located inside under dash by heater core? Is this also called something like a check valve, where I have to remove the inside center console? HOW DO I CHECK THIS? HELP ME OUT WILL YOU? I really appreciate all the help!! Thanks again!! HUTCH
Replied on April 22, 2012
the servo is the one by the heater core.youll need a vacuum tool check the vacuum at the hose. then u check the servo for proper oper.you pump the tool and the servo operates in and holds vacuum wthout loosing air.u will have to check the vacuum in the sys.