HEATER BLOWS COLD

  • Tiny
  • surveyor680
  • 1990 Ford Bronco
  • V8
  • 4WD
  • automatic
  • 168,000 miles

My heater blows cold air I flushed and changed the coolant and replaced the thermostate

Friday, January 14th, 2011 AT 3:40 AM

2 Answers

  • Tiny
  • rasmataz
  • Member

Check the heater core, heater control valve and the air blend door.

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Friday, January 14th, 2011 AT 3:56 AM
  • Tiny
  • Ford Man
  • Member

You may have an air bubble stuck in the heater core. Also the heater control valve might be stuck if you back - flushed the system without removing it. The thermostate might not be any good, & needs to be tested to see if it opens.

Ford Man in Michigan

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Friday, January 14th, 2011 AT 5:04 AM

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