New 2002 Yukon owner with HVAC problems

Discussion in 'Interior' started by Sanjoro, Jun 27, 2018.

  1. Sanjoro

    Sanjoro TYF Newbie

    Posts:
    5
    Likes Received:
    0
    Joined:
    Jun 27, 2018
    Name:
    Isaiah
    Hello everyone I just bought an 02 yukon XL with 136000 miles on it and I noticed that the automatic temperature control doesn't work for the front, it works for the rear just fine and everything else works as it should but no matter where I set the temperature knob at it just keeps going like it's on max ac, I don't have dual temperature zones in the front so hopefully I can avoid some of the other issues I've been reading about. The rear when set on auto will slow down the blower oncertain it gets close to the set temperature but no matter what I set the front temperature to it will never slow down. I have been a mechanic for several years but I haven't ever owned a yukon before, if someone could point me in the right direction that would be awesome.
     
  2. swathdiver

    swathdiver Full Access Member

    Posts:
    4,047
    Likes Received:
    2,567
    Joined:
    May 18, 2017
    Location:
    Treasure Coast, Florida
    Name:
    James
    The controller probably does need replacing, use your advanced scan tool to looks for codes in the HVAC system. See SeriousCTBuyer on ebay and or get a subscription over at AllDataDIY for the shop manual for your truck. Welcome Isaiah!
     
  3. Sanjoro

    Sanjoro TYF Newbie

    Posts:
    5
    Likes Received:
    0
    Joined:
    Jun 27, 2018
    Name:
    Isaiah
    Are you talking about this? Screenshot_20180628-120136_eBay.jpg
     
  4. swathdiver

    swathdiver Full Access Member

    Posts:
    4,047
    Likes Received:
    2,567
    Joined:
    May 18, 2017
    Location:
    Treasure Coast, Florida
    Name:
    James
    Yessir!
     
  5. Rocket Man

    Rocket Man Sometimes A Dumbass Supporting Member

    Posts:
    7,582
    Likes Received:
    9,050
    Joined:
    Dec 25, 2014
    Location:
    Oregon
    Name:
    Mark
    Have you tried the reset procedure? I started a thread on it in the Tech section. If that doesn't work then it's probably the controller.
     
  6. jmm121783

    jmm121783 Full Access Member

    Posts:
    112
    Likes Received:
    29
    Joined:
    Oct 30, 2017
    Location:
    Detroit
    Name:
    Joe
    Could you please post this for good measure and search functionality? Im 99% sure this is not my issue but knowing and proceding with the reset procedure could help me check some boxes and move forward. Thanks~
     
  7. Rocket Man

    Rocket Man Sometimes A Dumbass Supporting Member

    Posts:
    7,582
    Likes Received:
    9,050
    Joined:
    Dec 25, 2014
    Location:
    Oregon
    Name:
    Mark
    swathdiver likes this.

Share This Page