2001 GMC Yukon Climate control module

Tiny
RENDOT
  • MEMBER
  • 2001 GMC YUKON
  • 4.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 172,000 MILES
Air only come out of dash vents. Temp control works as set.
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Thursday, January 15th, 2015 AT 8:57 AM

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Tiny
HMAC300
  • EXPERT
Check for a vacuum leak one of the vacuum motors for mode is probably not working or there is a leak in vacuum line.
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Thursday, January 15th, 2015 AT 9:28 AM
Tiny
WRENCHTECH
  • EXPERT
Not sure where that diagram came from HMAC but the mode actuators on this truck are electric.

https://www.2carpros.com/images/external/91360274.gif
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Thursday, January 15th, 2015 AT 9:53 AM

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