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GMC Yukon Climate Control AC and Heat Questions

109 messages,  Last post on Oct 02, 2009 at 3:30 PM

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What is this discussion about? GMC Yukon XL, Chevrolet Suburban, Chevrolet Tahoe, Heating / Cooling, SUV

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#52 of 109 2004 Yukon Rear Climate Control by bbebensee Jan 17, 2008 (3:14 pm)
All of the rear air vents push out cold air where as the front control works just as it is suppose to. Is it a matter of resetting the computer or is it mechanical. The dealer wants $900.00 to possibly fix the problem? Replies to this message: obyone (Jan 28, 2008 12:33 am) cheapengineer (Mar 01, 2008 8:12 am) tjustus (May 11, 2008 2:07 pm)
#54 of 109 2000 denali heater not working all the time by denali00 Jan 25, 2008 (12:54 pm)
I have a 00 denali yukon and the heater does not work properly all the time. Please let me know if you have experienced any of these problems with your vehicle Replies to this message: obyone (Jan 28, 2008 12:33 am)
#56 of 109 Re: 2004 Yukon Rear Climate Control [bbebensee] by obyone Jan 28, 2008 (12:33 am)
Replying to: bbebensee (Jan 17, 2008 3:14 pm) You could disconnect your battery for 15 minutes to see if it resets. After I had replaced the rear evaporator core, the system needed to be reset for the rear controls to work correctly.
#57 of 109 Re: 2000 denali heater not working all the time [denali00] by obyone Jan 28, 2008 (12:33 am)
Replying to: denali00 (Jan 25, 2008 12:54 pm) Try and check your coolant level. If the level is low the heater will not operate correctly.
#58 of 109 2003 Yukon XL blows hot air when all controls are OFF! by rkg1 Feb 26, 2008 (8:55 am)
Has anyone else had this problem? We will get hot air blowing thru the front defrost vents (on top of the dashboard, right under the windshield), with all temp controls OFF.   We recently figured out that if we turn the A/C on and let it blow really cold air thru the regular front vents, then turn off the system - that the defrost vents will stop blowing the hot air.   Any advice????
#59 of 109 Re: 2007 Yukon Denali a/c problem [jpw5] by vegasmom3 Feb 29, 2008 (1:25 am)
Replying to: jpw5 (Sep 21, 2007 11:23 am) I'm having the same problem in my 2007 Yukon. Started almost immediately, been serviced two or three times...once they said they couldn't duplicate it so, out of luck. The next time it happened I drove directly to the dealership and they said how strange it was, they needed it overnight and said they replaced or adjusted some type of actuator or something. The next time they said they'd need it for a while to try to figure it out, as they were "stumped". By this time fall was coming and we haven't used the AC until a week ago...same old problem---cold as ice on driver side and hot hot air on the passenger???? Did you ever get an answer for this on your Denali? I am one more visit away from a Lemon Law Action... Thanks for any tips!!
#60 of 109 Re: 2004 Yukon Rear Climate Control [bbebensee] by cheapengineer Mar 01, 2008 (8:12 am)
Replying to: bbebensee (Jan 17, 2008 3:14 pm) I had the same problem on my 2004 Yukon XL. The HVAC worked fine in front but the back and overhead only put out cold air. It was fixed for free under warranty but it only took 20 minutes. They said that there was a bad connection.   Since then all of the A/C quit working. They charged $325 to reprogram the HVAC system. They couldn't adequately explain what was broken or what failed, it just need to be reprogrammed. My service contract did not cover this so I had to eat it. Not happy.
#61 of 109 Re: Reprogramming Air Conditioning [jlflemmons] by bbebensee Mar 03, 2008 (10:01 am)
Replying to: jlflemmons (Aug 01, 2007 8:16 pm) Does the A/C computer control the heating as well, will pulling the AC fuse do the same for the heating? Replies to this message: rkg1 (Mar 03, 2008 11:02 am) motery (Mar 04, 2008 12:13 am)

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