Where is the cold air heater on a GMC Yukon?
It was cold out and the heat would not work in the front only. Turned out that the blend door motor was dead. It is under the glove box at the passengers feet. A small servo motor that turns hot and cold air valve in the heater box.
Why does my GMC Yukon blow hot and cold air?
A small servo motor that turns hot and cold air valve in the heater box. I pulled the small flat motor off and noticed the shaft was jammed and would not turn when i moved the temperature selector knob from hot to cold. I reached in and turned the air valve with my finger and verified that it was not stuck.
Why is the rear AC warmer than the front?
When the rear ac is turned on only, the air isn’t that cold. But when the front ac is turned on, the rear ac is blowing colder air out the vents. That’s because the rear AC by itself can’t turn the compressor on… The front AC has to be on for the compressor to turn on….
Why is the front vents warm but the rear vents are cold?
The gauge showed that the system was low and I started to fill the system. The compressor clutch did turn on and the system is currently at 45psi (fill zone). Now, the rear vents is blowing cold air but the front vents is still blowing warm air.
It was cold out and the heat would not work in the front only. Turned out that the blend door motor was dead. It is under the glove box at the passengers feet. A small servo motor that turns hot and cold air valve in the heater box.
A small servo motor that turns hot and cold air valve in the heater box. I pulled the small flat motor off and noticed the shaft was jammed and would not turn when i moved the temperature selector knob from hot to cold. I reached in and turned the air valve with my finger and verified that it was not stuck.
When the rear ac is turned on only, the air isn’t that cold. But when the front ac is turned on, the rear ac is blowing colder air out the vents. That’s because the rear AC by itself can’t turn the compressor on… The front AC has to be on for the compressor to turn on….
Is the front of my GM Truck warm?
The gauge never went past 45psi when recharging and the front vents where still warm afterwards. This morning I decided to turn on the ac in the front while driving to work and the air was cold but it could be colder. I went and bought another can and will recharge again at lunch time and post my results.
The gauge never went past 45psi when recharging and the front vents where still warm afterwards. This morning I decided to turn on the ac in the front while driving to work and the air was cold but it could be colder. I went and bought another can and will recharge again at lunch time and post my results.
Why does my front AC blow hot air?
Warm in front, cool in back. Please post any answers as I would like to know as well. a/c is working fine. sounds like the diverter door is remaining open allowing the fan to blow air through the heater core. this door is often controlled by engine vac or and electric door motor closing device. A good mech at the dealer should have found this.
Why does my GMC Yukon Denali XL not heat?
I will have the heat on and the air coming out of the vents is cooled air. 2003 GMC Yukon Denali XL started blowing air out of defrost after a battery change. Hopefully its just a bad mode actuator. Rear a/c and heat not changing to heat staying cold and not changing from ceiling to floor.
How does a / C work in a Yukon Denali?
A/C blows cold on driver while pass gets heat… sometimes reverses in the winter. With or without a/c. Air conditioning is on but the air coming out of the vents is heated air. It does the opposite sometimes as well. I will have the heat on and the air coming out of the vents is cooled air.
Why does my Yukon Denali blow air out of the vents?
With or without a/c. Air conditioning is on but the air coming out of the vents is heated air. It does the opposite sometimes as well. I will have the heat on and the air coming out of the vents is cooled air. 2003 GMC Yukon Denali XL started blowing air out of defrost after a battery change. Hopefully its just a bad mode actuator.
How much does a GMC Yukon XL heater cost?
The average cost for a GMC Yukon XL AC Diagnosis is between $53 -$67. Learn More Heater blows hot on passenger side and cold on drivers side. dont get heat on defrost at dash either. What do I need to have replaced? While driving with the a/c on, the front driver vent will suddently blow heat.
Is the a / C on in my GM Truck?
After two cans of R134a and 3 days later a can of Stop Leak, everything is cool and holding its pressure. We are getting some very humid 95 degree days so the A/C is being used frequently. Its 10:12am and its already 91 degrees outside…
How to recalibrate the HVAC system in a Chevy Tahoe?
When it’s time to reconnect it, touch it to the negative battery terminal to make sure any residual electricity is discharged. Start the engine and DO NOT TOUCH THE HVAC CONTROLS FOR 5-10 MINUTES! The system will go through a calibration procedure, all the actuators ( mode, blend, recirc) will calibrate also.
The gauge showed that the system was low and I started to fill the system. The compressor clutch did turn on and the system is currently at 45psi (fill zone). Now, the rear vents is blowing cold air but the front vents is still blowing warm air.
Why is my front fan not working on my GMC Yukon?
If you can get access to wiring at the fan motor. take an OHM meter or test light and check for current. If you have current then it’s most likely a bad motor. Oh wait, mine is a 2007. Probably same thing though Oh wait, mine is a 2007.
When did my GMC Sierra air conditioner stop working?
I had a 2001 GMC Sierra that did this when truck was less the one year old (summer of 2001 is when it was). The dealer had the truck in the shop idling for a long time and the A/C worked perfectly. I told them to take it for a ride and see. So the service manager in an effort to convince me nothing was wrong went for a ride with me driving.
Where did the GMC Yukon Denali come from?
No accident or damage reported to CARFAX. 1st owner purchased on 12/15/04 and owned in AR until 10/31/07 • 2nd owner purchased on 11/29/07 and owned in AR until 06/01/15 • 3rd owner purchased on 06/01/15 and owned in NC until .
Where did the 2005 GMC Yukon come from?
1st owner purchased on 08/15/05 and owned in NJ until 09/12/11 • 2nd owner purchased on 09/12/11 and owned in NJ until 11/04/17 • 3rd owner purchased on 11/04/17 and owned in NJ until 03/17/21. 1st owner drove an estimated 21,483 miles/year • 2nd owner drove an estimated 5,088 miles/year • 3rd owner drove an estimated 8,550 miles/year.