SOURCE: 2005 Yukon Denalli - Blow cold air out the drivers side
the passenger side electronic controller is sensing the passenger side temperature is cooler than it really is, which causes the controller to increase the hot water flow to warm up the passenger area...any time you replace a battery or loose your charge, the HVAC module will need to be reset...Try this...
Remove your hvac fuse for 10 sec - reinstall fuse.
Start engine "DO NOT TOUCH ANYTHING FOR 3 MINUTES"
Recalibration of module will accure when power is lost (fuse pulled, battery changed or died)
If hvac reset did not work you have a trouble code - reset BCM
There are two ways to reset your body control module
Go to the GENERAL
Remove BOTH battery cables (for the sake of CAUTION remove air bag fuse and wait 5 MINUTES)
Hold both cables together for 1 minute - drains KAM (keep alive memory).
Put everything back together
Start the engine "DO NOT TOUCH ANYTHING FOR 3 MINUTES"
If you have no broken parts - system not default (normal operation)
If that works it just saved you 600 dollars...dealer costs to repair.
Good Luck...please rate me a fixya.
SOURCE: AIR CONDITIONER ONLY BLOWING COLD ON ONE SIDE AFTER DISCONNECTING BATTERY
Turn your AC off. Turn the car off Crank the car turn ac on drivers side to 60 passenger side to 90 press auto wait 1 minute turn AC off (very important) turn car off turn car back on switch driver's side 90 passenger 60 press auto wait one minute turn AC off( very important) turn car off turn car on AC 70 both sides press auto your ac should be blowing cold If not, you have an expensive problem
SOURCE: 2004 GMC Yukon blows hot air out of the driver
Probably the left temp actuator. The wires in the right I/P junction block could have poor tension also, but it's usually the temp actuator.
SOURCE: Air conditioner blows hot air after 30 seconds on
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.
SOURCE: 2005 GMC Sierra 1500 - heater blows, but only cold air
Check coolant level. Check for heat at the heater hose going from water pump to heater core at firewall. Check to see that cable is moving coolant control valve from the closed to open position. Low mileage so it shouldn't be plugged heater core.
Testimonial: "You were absolutely correct. Low coolant level. Put in some 50/50 and we're nice and toasty now, but need to find out why coolant was so low. Thanks."
NO HEAT ON FLOOR VENTS
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As
per your problem mentioned. There are few solved help links to
troubleshoot these problems. Go through the list and Click the link below:----
http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html
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http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
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http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html
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http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html
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http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html
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http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html
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http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html
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http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html
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These
will help.
Thanks.
As
per your problem mentioned. There are few solved help links to
troubleshoot these problems. Go through the list and Click the link below:----
------------
------------
http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
-----------
http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html
--------------
-----------
http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html
--------------
These will help.
Thanks.
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