How does the hot air blow in a GMC Yukon?
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.
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.
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.
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.
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….
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.
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 car air conditioner blow cold then warm?
Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool.
Why does my Chevy Silverado blow hot air?
My 04 silverado starts off cold on both sides then sometimes the driver side vents will blow hot air. when we stop and turn off truck and start it up and it is fine again. Could it be the thermostat for that side not working??? anyone have any answers for this problem?
Why does my GMC air conditioner stop working?
For about 5 miles the A/C worked normally till we hit a R/R and the bump made it stop blowing cold air and he was finally convinced. Back to the shop and 30 min later they found the problem. Turned out to be the low pressure switch, (under hood on bottom of small tank) it was corroded and causing a loss of electrical contact.
My 04 silverado starts off cold on both sides then sometimes the driver side vents will blow hot air. when we stop and turn off truck and start it up and it is fine again. Could it be the thermostat for that side not working??? anyone have any answers for this problem?
Why does my Blender keep blowing hot air?
Good luck with your DIY project. This could happen to you if you have replaced the battery and then your actuator door got stuck on the floor blower or blend door isn’t shutting/opening fully and by doing this procedure it will Reset the fuse and recalibrate your door actuator.
Is the front of my truck warm or cold?
The front and rear where blowing warm air with the temps set at 60 degrees max. Today, I decided to purchase the EZ-CHILL from Advanced Autoparts to recharge my system (low-side).
The front and rear where blowing warm air with the temps set at 60 degrees max. Today, I decided to purchase the EZ-CHILL from Advanced Autoparts to recharge my system (low-side).
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.
Why does my 2005 Tahoe blow hot air?
My 2005 Tahoe hava AC giving hot air problem. AC would suddenly blow hot air just on the driver’s side while the passenger side still blew cold. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again. This happens intermitently.
What to do if your GMC Yukon heater stops working?
If the heater has stopped working in your Yukon, this process has failed in one way or another. A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir.
What does the thermostat on a GMC Yukon do?
Never touch the radiator cap unless the vehicle is ICE COLD. The job of your Yukon’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.
Why does the a / C blow hot in my GMC Yukon?
I have a 2002 GMC Yukon and the A/C in the dash blows cold but the rear A/C blows warm. Does anyone know what could be the cause of this and how to fix it. Click to expand…
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 Chevy Tahoe blow hot air?
I leave the rear air on auto for both fan and vent control and just leave it at 70 on the temp. If this does not work, there are some threads on here about replacing the actuator or manually resetting. I have a 2002 Tahoe that is having some problems with the rear a/c.