heater

2000 MERCURY MYSTIQUE
85,000 MILES • 4 CYL • FWD • AUTOMATIC
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WAYEN1952
  • MEMBER
  • 1 POST
i have a 2000 mercury mystique with no heat. the heater core get hot but the fan only blows cold air.
May 12, 2011 at 7:33 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS

The temperature is controlled by the use of an air mix door that is operated by an electric motor/actuator. This door can be jammed or the actuator can be inoperative or have stripped plastic gears internally.
May 12, 2011 at 9:25 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.