CAR OVERHEATING ONLY WHILE BRAKES ARE APPLIED OR AIR IS ON

  • Tiny
  • rhorne
  • Ford

I have a Mercury Sable 1999, v-6, with 94,000 miles. My car overheats only when the brakes are applied and sitting idle or when the air conditioner is on for awhile; however, if I put the car in park it will not run hot. I have had a new water pump put on, thermostat replaced, hoses checked going to radiator for leaks, new reservoir, and the fans are coming on. I do not believe it is the heads because then it would be running hot at all times. Please help before I have to spend a fortune on my car. It has been checked out by Firestone who could not diagnose the problem.

Monday, May 22nd, 2006 AT 12:54 PM

2 Answers

  • Tiny
  • larryhe
  • Member

The fans are on all the time? Even when it is over heating?

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Wednesday, May 24th, 2006 AT 12:45 PM
  • Tiny
  • rhorne
  • Member

They seem to be running whenever I check; however, I haven't looked every time it runs hot.
R. Horne

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Wednesday, May 24th, 2006 AT 2:56 PM

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