1994 Ford Ranger No heat

Tiny
GTC
  • 1994 FORD RANGER

Heater problem
1994 Ford Ranger

After the engine runs and temp gage says temp is normal but there is no heat. I checked the core for blockage and water flows thru the core unrestricted. Therostat appears to work properly. Is there a check valve in this system that could be restricting water flow to heater?

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Monday, December 29th, 2008 AT 12:39 PM

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Tiny
DAVE H
  • EXPERT
  • 13,535 POSTS

INSUFFICIENT HEAT
Ensure cooling system is operating properly. Check heater system hoses and core for coolant flow. Check for loose or misaligned cable to temperature blend door. And check blend door is not stuck closed

TEMPERATURE CONTROL LEVER
The temperature lever mechanically operates a cable to adjust the temperature blend door. Temperature blend door is in the plenum assembly. When temperature lever is in COOL position, temperature blend door closes off airflow to heater core. When lever is in the WARM position, air is directed through the heater core. When lever is in intermediate positions, heated air is blended with cooler incoming air to achieve desired temperature.

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Monday, December 29th, 2008 AT 1:25 PM
Tiny
BEARFOOT57
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Is the blend door on 2000 2.4 controled by vacuum hose, which is normaly open.

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Sunday, January 8th, 2012 AT 7:27 PM

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