Question about 2003 GMC Yukon XL

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Fan not working properly in GMC

Fan not working properly in 2003 GMC Yukon. Next to no air being blown out of vents. Is there a fuse to be replaced?? How to tell if fan motor needs to be replaced?

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Check underneath your dash passenger side, you might have a little slot with 2 either 7 mm or 5.5 mm screws holding a cover, behind that you may have a cabin filter which often times clogs up... hope it helps...

goodluck...

Posted on Dec 17, 2008

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Posted on Jan 02, 2017

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1995 gmc sierra heater control prob


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1 Answer

2003 chevy silverado air does not blow through vents. Condenser works. Pipes are cold. Fan works. Modular (next to fan) repalced to get fan to work. Heater air conditioner controls under radio replaced....


The air vents are control by vacuum line and or linkage.

Listen for hiss or feel for vacuum leak under the dash,

Feel for broken linkage(s) that are close to the vents.


WORK BACKWARD if you have small hands to feel out where is the missing link.

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1 Answer

Front Climate Control Blower malfunctioning


Does your vehicle have manual or automatic climate control ? The blower motor control processor may be the problem .
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