Question about 2001 GMC Yukon Denali
The resistor pack is to help control fan speed. Either your temp control door is stuck/unplugged which doesn't seem likely with rear blowing hot too. Could be temp sensor reading incorrectly, even then commanding full cold should do something. I would start with the person you just paid to work on it or you'll be paying someone to diagnose it.
Posted on Dec 12, 2017
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
SOURCE: climate control 04 yukon denali
Removing the fuse for a few minutes and turning the controls on both driver side and passenger side to the highest setting and then turning them down slowly until the system started cooling has worked for me. Thanks for the suggestions---saved me $2500.00 on a useless dealer estimate to fix problem. These dealers are dangerous---they were the ones that caused my problem when they unhooked the battery while replacing my ignition switch.
This is a good forum.
Posted on Aug 12, 2008
SOURCE: I have a 2004 GMC
Remove the Positive Battery Terminal, leave the Negative Terminal connected. Wait 30 minutes. Attach the Positive Terminal. Verify temperature settings is around 70 degrees. This procedure has been known to resolve computer settings.
Posted on Aug 27, 2008
The actuator has gone bad. They can be programed, and reset, but usaly they are bad, and that will only patch the problem for a while.
Posted on Jun 19, 2009
you need to change drivers side temp door actuator then disconnect battery for 5 seconds and reconnect after changing the part, turn key on for 60 seconds with touching heater control to allow actuator to program and then it will work.
Posted on Sep 19, 2009
I have had this problem. I am not a mechanic...so to correct the issue temporarily, I simply turn off the car and restart. This has worked everytime for me. In extreme cases, I think you can also remove the AC fuse and start the car, which will also reset the computer. I also think that by taking the climate control off the "AUTO" setting has worked in the past.
Posted on Oct 27, 2009
Tips for a great answer:
Nov 22, 2011 | 2003 GMC Yukon Denali
Jul 20, 2011 | 2005 GMC Yukon Denali
Jun 07, 2011 | 2003 GMC Yukon Denali
Jul 02, 2017 | 2000 GMC Yukon XL
Jan 31, 2011 | 2000 Ford Expedition
Dec 13, 2017 | 2005 GMC Yukon Xl Denali
Aug 13, 2009 | 2005 GMC Yukon Xl Denali
Jun 18, 2009 | 2005 GMC Yukon Denali
Dec 15, 2008 | 2001 Acura 3.2TL
May 11, 2017 | 2005 GMC Yukon Denali
101 people viewed this question
Usually answered in minutes!