WHAT KIND OF PROBLEM IS IT WHEN THE TEMPERATURE ...

  • Tiny
  • Anonymous
  • 1990 Ford Thunderbird
  • 180,000 miles

What kind of problem is it when the temperature gets in the red zone? When I turn the heater on it goes back to normal.

Tuesday, January 8th, 2013 AT 4:34 PM

1 Reply

  • Tiny
  • caradiodoc
  • Expert
  • 25,450 posts

The engine is overheating. Eventually serious damage will result. The fact that running the heater brings the temperature down suggests this is not related to an engine problem. It is related to a cooling system that is not doing its job of getting rid of normal heat. The first suspect is the radiator fan clutch. Next, if this has been getting worse slowly over time, check the cooling fins on the radiator to see if they're corroding away. Feel across the radiator to see if there's any cold spots. That would indicate some of the tubes are blocked.

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Tuesday, January 8th, 2013 AT 9:06 PM

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