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1999 Ford Taurus Heater Trouble

Tiny
DESPURLOCK
  • MEMBER
  • 1999 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
Recently I noticed that I wasn't getting much heat. Upon doing some research, I have discovered that the heater core on these cars plug frequently. While troubleshooting to see if flow was going into the heater core, I noticed the air conditioner was actually running. I pulled the fuse that runs the A/C clutch and flushed the heater core. My first question is does the A/C run during heater use and secondly would this be a bad switch?
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Sunday, October 31st, 2010 AT 11:34 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
It will run with the defroster. Are you sure it runs on heat?
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Tuesday, November 2nd, 2010 AT 7:58 AM
Tiny
DESPURLOCK
  • MEMBER
  • 2 POSTS
It seems to run when only the heat is on, not only with defroster on.
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Friday, November 5th, 2010 AT 8:46 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
It has to be tied into the AC switch if it runs all the time. Check to see if it is working properly.
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Saturday, November 6th, 2010 AT 1:53 AM

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