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Old 04-10-2019, 05:40 PM   #1
karen936
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Default Help Please Tahoe dual air 2003 blows hot front and back.

Hi, thanks in advance. I have a 2003 Tahoe with dual air
all of a sudden no air just hot air. First thing I did since we have never serviced the air is add coolant.When that did not work I researched and did the following.
https://youtu.be/WWnjTwIK4OA

I have done this three times now. It did not fix the problem
Both the rear and the front are blowing hot air.

I am thinking fuse? or sensor under the drivers side daytime running light.
Retire on a budget so trying to fix it myself, thanks again. Karen

Last edited by karen936; 04-11-2019 at 09:51 AM.
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Old 04-26-2019, 08:53 PM   #2
scorpio
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I would check to see if the belt is there, when you open the hood look to the left in the bottom and look see if there's a belt going from the compressor to the engine main pulley
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Old 04-29-2019, 10:12 AM   #3
karen936
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It's there thanks
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Old 05-01-2019, 11:45 PM   #4
Dsmspickdad
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Usually it's either the driver's side effected? Which side to blowing hot air? If driver's side you can remove the blend door actuator. I disassembled the actuator found excessive die-elecrtric grease on the contact points. Removed the excessive grease, reassembled the actuator. I have done this on both blend doors. Did the passenger side a couple of years ago. The drivers side last year problem sloved.


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