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Air conditioner will not blow cold air on driver side?

Tiny
ONLYADELE
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 134,000 MILES
Air conditioner will blow out cold air if I add freon but within a week it will not blow out cold air on the drivers side. Passenger side has air. I have replaced the compresser and ran dyes and no leaks. It has stumped a few people. Any suggestions?
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Friday, September 9th, 2011 AT 11:51 PM

4 Replies

Tiny
RAYMOND
  • MEMBER
  • 33 POSTS
This car has seperate blend door motors for the driver and passenger. The driver blend door motor may be sticking or not working at all. The motor is located under the center of the dash on the drivers side. Switch from cool to hot while feeling for movement on the motor.
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Saturday, September 10th, 2011 AT 2:22 AM
Tiny
PROMECHANIC
  • MECHANIC
  • 536 POSTS
The blend door motors could be the problem. "Raymond" is right.
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Sunday, October 2nd, 2011 AT 5:27 AM
Tiny
CHRISSY78
  • MEMBER
  • 1 POST
I have tried 2 smaller cans of ac pro and still barely cool breeze on drivers side with ice cd on passenger side. I have the dual temp control on my 2000 Pontiac Grand prix gt
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Friday, May 24th, 2019 AT 8:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Don't add any more to the system the problem is the blend door motor. Here is a guide to help see whats going on and the location of the part you need to change below.

https://www.2carpros.com/articles/replace-blend-door-motor

Check out the diagrams (Below). Please let us know what happens.
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Wednesday, May 29th, 2019 AT 6:28 PM

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