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1998 GMC Sonoma Ventilation problems

Tiny
DHORN_THEWICKED
  • MEMBER
  • 1998 GMC SONOMA
When I try to change the air flow to the floorboard (from any other air flows), it skips it and goes straight to the defrost. Could this be a problem with the sensor? Please contact me when you are able. Thank you.
Saturday, April 4th, 2015 AT 4:28 PM

2 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The mode doors are operated by an electric actuator/motor. You can access it from under the drivers side dash. If you observe the linkage while you try to select a different mode you may be able to see the problem.
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Saturday, April 4th, 2015 AT 4:54 PM
Tiny
DHORN_THEWICKED
  • MEMBER
  • 2 POSTS
Alright, I'll definitely give it a try. Thank you.
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Tuesday, April 7th, 2015 AT 5:54 PM

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