GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 4 of 4
  1. #1

    Default Heater fan switch not changing from defroster to dash vents??

    Speed control OK but will not blow out of dash vents, any ideas?

  2. #2

    Default

    had identical problem with my tahoe but previous owner got it fixed some times the valve the directs were the air blows gets blocked and wont blow out of the vents also vents might not be hooked up right or knocked out of place. the ducting in located under the dash and behind it.

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

    Check out my other mods in My Garage: http://www.gmtruckclub.com/forum/sho...t-Tahoe-4-Door

  3. #3

    Default

    Is there any sort of modulator possibly faulty?

  4. #4

    Default

    well the direction selection switch might be faulty thats a possibility. have u tryed to move it and does it change functions?

Similar Threads

  1. heater, defroster problems
    By joeg in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 5
    Last: 04-27-2012, 02:50 PM
  2. '91 1500 no air theourgh dash vents.
    By crosstalk in forum General Chevy & GM Tech Questions
    Replies: 0
    Last: 04-24-2011, 03:43 PM
  3. chevy silverado dash vents dash part ac heat vents
    By ChevyFan in forum Chevy Parts eBay
    Replies: 0
    Last: 10-15-2009, 06:00 PM
  4. heater/vents not working, only blowing to floor
    By thattallguy32 in forum General Chevy & GM Tech Questions
    Replies: 2
    Last: 10-12-2009, 12:50 AM
  5. Low Air from Dash Vents a/c
    By leenyc in forum Chevy SUV & Crossover Tech Forum
    Replies: 3
    Last: 07-31-2009, 09:56 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •