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AC is blowing warm on the driver's side

Tiny
KFITZ5521
  • MEMBER
  • 2005 CHEVROLET SILVERADO
V8 four wheel drive automatic 52,000 miles.

My truck has dual climate control. Recently the drivers side started blowing air that was noticeably warmer than the passenger side, with both controls set on the coolest setting. The air coming out of the passenger side is quite cold, but I am dealing with hot air blowing on me as I drive.

The climate control lever feel like they are working, as they both go up and down without any issues.

Any suggestions?
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Sunday, August 31st, 2008 AT 1:12 PM

4 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check for proper charge. Low on refrigerant.
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Sunday, August 31st, 2008 AT 6:07 PM
Tiny
KFITZ5521
  • MEMBER
  • 1 POST
Refrigerant level is fine. Checked with a gauge. I have read a lot about blend air doors sticking, and actuators not working properly. Since the air blows out very cold on the passenger side, could it be a blend air door issue? If so, what is the next step?
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Monday, September 1st, 2008 AT 9:12 AM
Tiny
FEELGOOD71
  • MEMBER
  • 32 POSTS
Replace the blend door motor for the left. I have done this many time but mostly on cars.

It should be located under the left side of the dash on the heater box. And sometimes it can be tricky to get at.

Good luck
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Monday, September 1st, 2008 AT 9:26 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
If charge is good, scan it for codes, it will tell you if an actuator is no good.
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Monday, September 1st, 2008 AT 9:48 AM

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