Welcome to V8Buick.com.
Results 1 to 6 of 6
  1. #1
    Join Date
    Feb 2002
    Location
    Michigan,home of the PSMCDR!!!
    Posts
    2,788

    Arrow 2000 GMC Yukon-NO HEAT front dash vents

    This is the newer body style with the 5.3 engine.

    I know the problem is either the control in the dash, or some stupid little electric operated door under the dash that is not letting the heat come through for the defrost/floor heat,etc.
    The rear heat works fine, but we REALLY need a defroster

    Has anyone else had the same problem that can point me in the right direction to what the fix is, and parts cost?

    Don't forget to tell me if the whole damn dash has to come out to get to the guilty culprit.

    Thanks in advance.

    Tom
    something in the works, for a PSMCDR near you........


    "I don't want more than anyone else, but I don't expect to settle for less"

  2. #2
    Join Date
    May 2006
    Location
    DeKalb, Illinois
    Posts
    1,366

    Default Re: 2000 GMC Yukon-NO HEAT front dash vents

    Is it blowing cold air or not blowing at all? I have an 01 Silverado and had no heat last year, just cold air blowing from the vents. I had the heater core flushed out and all was well. My system had never been opened and there was alot of junk built up in there. If you have cold air blowing, might be worthwhile to try a flush. If you have nothing blowing out the vent, I got nothing.

    Tom
    65 Buick Special
    BBB 462 with Edelbrock heads
    TH350 Trans and a pair of tens in the trunk

  3. #3
    Join Date
    Feb 2002
    Location
    Oakland Gardens, N.Y.
    Posts
    21,525

    Default Re: 2000 GMC Yukon-NO HEAT front dash vents

    If it has actuators like my Riviera, that is probably the problem. All the actuators on my Riv are accessable from below without taking the dash apart. Either the small electric motors go, or the gears crack or jam up. Have a look.
    Larry
    1998 "Fully Optioned" SC3800 Riviera
    70 GS 455 Stage1, TSP 470, 602 HP@ 5900, 589 TQ @ 4900
    TA Hyd Roller Cam, 230*/238*, 112, .544"/.577" lift, 4-7 swap
    MSD Digital 6+, Ignitionman Distributor w/MSD trigger
    1967 BT Switchpitch ST-400, Gear Vendors OD
    with TSP 3200/1800 converter
    AED 1000 HO Carb, 800 CFM 7042240 Quadrajet
    8.5 10 bolt, 3.73's
    11.67 @ 115.49 MPH
    Larrymta@verizon.net, GSCA #291
    BPG # 1063
    N.E. GS/GN Club Assistant Director

  4. #4
    Join Date
    Feb 2002
    Location
    Michigan,home of the PSMCDR!!!
    Posts
    2,788

    Arrow Re: 2000 GMC Yukon-NO HEAT front dash vents

    Thanks for the reply Tom.

    Not the heater core, the hoses are both hot going into and coming back out of the heater core, plus the rear heat works fine off the same heater core.

    Nothing but cold air blows from the vents. Doesn't matter if it's on defrost,floor heat,or dash vents.

    I was hoping someone may have had the same problem, and could tell me exactly which actuator under the dash is the problem. From what I understand, there are either 6 or 8 actuator's
    something in the works, for a PSMCDR near you........


    "I don't want more than anyone else, but I don't expect to settle for less"

  5. #5
    Join Date
    Feb 2002
    Location
    Michigan,home of the PSMCDR!!!
    Posts
    2,788

    Default Re: 2000 GMC Yukon-NO HEAT front dash vents

    Looked at a repair manual at the auto parts store, and it had nothing as far as a picture(diagram)of the heater box,and the location of the actuator's,and a description of which one is which.

    This GMC is the biggest turd I've ever owned.
    The 5.3 engine is a fantastic piece, it's just too bad GM built a rinky-dink problem plagued turd around it.

    5 passenger side power window motor/assembly's
    Half the Speakers don't work
    Alway's has blown fuses
    Gas gauge quit reading right 3 years ago(at @ 70k miles)
    Some day's it just won't run right until you shut it off,and restart it
    It just turned 100k miles last week.
    something in the works, for a PSMCDR near you........


    "I don't want more than anyone else, but I don't expect to settle for less"

  6. #6
    Join Date
    Aug 2003
    Location
    Massachusetts
    Posts
    255

    Default Re: 2000 GMC Yukon-NO HEAT front dash vents

    i have a 2001 tahoe and love it. the heater resistor in the heater box goes. my did. its like $35 for the part at the dealer and not that bad to put it in.

 

 

Similar Threads

  1. Advice on GMC Yukon XL
    By Heavy D in forum The Bench
    Replies: 32
    Last Post: 03-19-2007, 07:55 PM
  2. NOS fender fit
    By BQUICK in forum Color is everything!
    Replies: 43
    Last Post: 10-31-2006, 06:56 PM
  3. Changing Front springs
    By 11SecondGS in forum Race car chassis tech
    Replies: 10
    Last Post: 01-10-2005, 11:27 PM
  4. Front fender weight
    By Steve Steele in forum Race 400/430/455
    Replies: 10
    Last Post: 02-04-2003, 11:02 PM
  5. front shocks
    By bkl455 in forum Race car chassis tech
    Replies: 1
    Last Post: 02-08-2002, 10:58 PM

Posting Permissions

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