» » »

Mercury Q&A

Ask Your Question

2000 Mercury Sable Question: My heat only works when i am parked

 

Question

Visitor, Detroit, MI, January 06, 2011, 15:01

My heat works when I warm my car up the engine gauge goes to warm but when i start driving the gauge goes down past cold and the blows cool air?

1 Answer
Flag This
  • Answer #1

    January 06, 2011, 23:17
    Profile_thumbnail
     Master

    Sounds like a possible engine thermostat opening too soon and staying open. Check there first.

    Flag This
  • Reply

    Visitor, February 04, 2011, 18:44

    One thing I would check is the anti-freeze. If you have added any, it may test too low. In a lot of engines, too high ratio of anti-freeze to water will cause a heating problem. Testing at about 35 below zero is a good target. I hope this helps.

    Reply
    Flag This