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Air Conditioner continues to blow cold air when on heat/defr

Tiny
PICKLEDEEDEE
  • MEMBER
  • FORD AEROSTAR
1997 FORD AEROSTAR, 220,000KM, AUTO, ELECTRONIC 4WD, The problem we are having is with the air conditioning, when I turn off the control on the dash then turn it right to defrost or defrost/heater, or heater, the air conditioner is still running, still blowing cold air, still cutting the engine in and out as the a/c does. What could be wrong? I was told it may be the A/C relay switch is stuck, but I can’t find it in the manual. Please help, I have read a lot of your posts, and you have helped many do-it-yourselfers immensely, although I can not find my problem posted. TY
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Sunday, August 12th, 2007 AT 11:21 AM

1 Reply

Tiny
RALEIGH0
  • MEMBER
  • 6 POSTS
I've also had an ongoing problem with fuel pumps on my 1988 Integra overheating in the really hot weather (especially with the air conditioning on). The ENGINE QUITS AND WON'T START UNTIL I LET IT COOL OFF. Sometimes there is a loud hissing or whistle coming from in front of the left rear wheel well where the pump is located and the pump itself is way too hot to touch. It gets worse and worse until I have to replace the pump. Sounds like you may have the same problem. I know it gave me fits until I figured it out.

I know they finally started putting the fuel pump inside the gas tank to keep it cool.
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Friday, July 13th, 2007 AT 3:10 AM

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