I have a 1997 Ford Expedition and the heat just stopped working. All the lines are getting warm but theres no heat. I replaced the heater core and the thermostat. What could it be?
60

Asked by Safewright35 Nov 28, 2016 at 06:40 PM about the 1997 Ford Expedition 4 Dr Eddie Bauer 4WD SUV

Question type: Maintenance & Repair

All the fans are blowing and it works in every position except heat. Could it be the water pump?

5 Answers
189,515

Paul answered 8 years ago

If tge car is running really hot or overheating then yes, if not there may be air it the system

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F_O_R answered 8 years ago

Are you saying the fans won't blow air when the controls are set to "heat"?

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Safewright35 answered 8 years ago

Every thing seems to be working fine its just not blowing hot air. The controls work in cold but not heat. It just went out. Could it be the radiator. The vehicle is not running hot at all.

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F_O_R answered 8 years ago

I would purge the air out of the system by parking the car facing up hill and then idle the car with the radiator cap off until it is fully warm and with the heater on. Take the cap off with the engine COOL. Top it off and hopefully that fixes the problem.

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T_S_T answered 8 years ago

Check the blend door actuator on top of blower box,it,s not flipping over to heat,this is common issue with this model.

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