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2000 Ford Taurus defroster

Tiny
WILLIEED803
  • MEMBER
  • 2000 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 140,000 MILES
My problem is when I turn on the defroster both cooling fans come on and the air coming out of the vents is not very warm I have flushed the cooling system and changed the thermostat, so I am going to flush the heater core, the engine temp is good. Just the cooling fans coming on are confusing me
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Thursday, October 21st, 2010 AT 1:52 PM

5 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The cooling fans are supposed to come on because the A/C compressor is also coming on to remove moisture. It has nothing to do with the heater temp.

With the engine at full operating temp, locate the 2 heater hoses where they go into the firewall and feel them to see if they are both hot to the touch. If they are.

The temperature is controlled by the use of an air mix door that is operated by an electric motor/actuator. This door can be jammed or the actuator can be inoperative or have stripped plastic gears internally.
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Thursday, October 21st, 2010 AT 2:24 PM
Tiny
WILLIEED803
  • MEMBER
  • 2 POSTS
Ok I understand but I thought that one fan comes on when the compressor comes on and the other comes on when the engine temp reaches a certain level
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Thursday, October 21st, 2010 AT 3:02 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
No, they are 2 speed but they run simultaniously.
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Thursday, October 21st, 2010 AT 3:06 PM
Tiny
WILLIEED803
  • MEMBER
  • 2 POSTS
Ok thank you so the fans are nothing to worry about that is normal
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Thursday, October 21st, 2010 AT 3:13 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I'm not says there couldn't be something wrong with the speeds but I doubt it has anything to do with your heat problem.
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Thursday, October 21st, 2010 AT 3:28 PM

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