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GMC Yukon Climate Control AC and Heat Questions

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

You are in the GMC Yukon Forum. Your Hosts are steve_ & tidester

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

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#50 of 109 Re: my SUV AC is on even after i turned the ignition off. [motery] by tidester HOST Dec 26, 2007 (12:56 am)
Replying to: motery (Dec 26, 2007 12:26 am) Are you sure it was the air conditioning that was running or was it just the air conditioning fan? The fan will run off the battery/alternator which suggests that your fan switch is faulty. The compressor does not run off the battery.   tidester, host SUVs and Smart Shopper Replies to this message: motery (Dec 26, 2007 1:58 am)
#51 of 109 Re: my SUV AC is on even after i turned the ignition off. [tidester] by motery Dec 26, 2007 (1:58 am)
Replying to: tidester (Dec 26, 2007 12:56 am) no it was the fan only ... well thanks a lot pal... it seemed that the fan switch is damaged...
#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!!

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