AC

Tiny
LESLIEBROWN8
  • MEMBER
  • 1999 MERCURY MARQUIS
  • 4.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 179,821 MILES
The air is blowing and when I idle the car it is warm air blowing then when I take off I will start having the AC get cold as I drive.
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Friday, May 12th, 2017 AT 2:13 PM

2 Replies

Tiny
HMAC300
  • EXPERT
If system is full check belt and tension-er as recommended replacement is 60,000 for both. Then check for blockage at condenser or fan not working with A/C on and finally check to see how full the system is.
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Friday, May 12th, 2017 AT 3:51 PM
Tiny
STEVE W.
  • EXPERT
Sounds like it has a blocked or damaged condenser. Or you have a weak compressor and the higher rpm makes it almost work correctly.
Test the system charge and watch the pressures as you increase the rpms. A low charge can act this way as well.
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Monday, May 15th, 2017 AT 11:29 AM

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