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No Heater?

Tiny
BILL THIELEN
  • MEMBER
  • 2001 FORD WINDSTAR
  • 6 CYL
  • 150,000 MILES
I replaced my front heater core when it had gone bad. The Rear Heat still worked when the front heat didn't work. When I replaced my heater core the heat worked great. The last two weeks the heat Front and Back is blowing cold I have replaced my coolant The Blend Door I can move Manually and that is not the problem I checked the Front Heater Hoses and Both are hot in and out going The Temperature gauge is within normal range and heats up fine.

Help!
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Sunday, February 7th, 2016 AT 7:55 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Make sure your coolant level is correct. A low level will cause this.

https://www.2carpros.com/articles/car-heater-not-working

Check the thermostat for being stuck open not allowing the coolant to heat up.

https://www.2carpros.com/articles/how-an-engine-thermostat-works

https://www.2carpros.com/articles/replace-thermostat

Beyond that, the cores could be clogged with dirt and debris. Did you flush the system of all dirt and debris when you replaced the heater core?

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Roy
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Monday, August 2nd, 2021 AT 3:20 AM

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