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2005 Cadillac Escalade
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Discussion Starter #1
Happens on and off during my 30 minute commute from time to time, but is happening more and more frequently. When it starts blowing hot it blows HOT and even if I shut the AC off it still vents the hot air into the footwell. I frankly always thought it was happening on both sides but today I had the boy in the car and his side was still blowing nice and cool.

Is this something simple to fix? If not, any idea what I might be looking at in terms of cost at the dealer? At a non-dealer AC shop?
 

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escalade
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Happens on and off during my 30 minute commute from time to time, but is happening more and more frequently. When it starts blowing hot it blows HOT and even if I shut the AC off it still vents the hot air into the footwell. I frankly always thought it was happening on both sides but today I had the boy in the car and his side was still blowing nice and cool.

Is this something simple to fix? If not, any idea what I might be looking at in terms of cost at the dealer? At a non-dealer AC shop?
This happens when and if you disconnected the battery, the HVAC control module lost its memory. Now the temperature actuators are out of calibration. Before heading to the dealership, try this: Turn ignition to run, engine off. Turn off everything, the courtesy lamps and the headlights. Do not touch the HVAC controls. Let the hvac module attempt a recalibration. Do not press any buttons or turn the ignition off. Let the vehicle sit that way for about three minutes. If you cannot handle the suspense, go surf the Net for a bit. After a few minutes, w/out pressing any buttons, start your engine. Let the hvac system sit like that for a few minutes. After 5-10 minutes of run time, turn the ignition off, pull key, shut doors, and let it sit for about 15 minutes.
 

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2004 Escalade
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68 Posts
This worked for a couple weeks and now I'm back to square one. Looking to just replace the part, but needing the part number for the actuator to fix the issue with the driver side blowing hot.
 

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2004 ESCALADE
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1 Posts
This has been a long ongoing issue with these type system. The GM bulletins do not work. The reprograms do not work, and replacing parts do not work..Here is how I have been fixing the problem. I remove ALL the connectors, remove the terminals from the connectors and squeeze the terminal for a tighter fit. I suggest you do ONE terminal at a time so sa not to misplace the terminal in the
connector.
 

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03 cadillac escalade
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11,902 Posts
This happens when and if you disconnected the battery, the HVAC control module lost its memory. Now the temperature actuators are out of calibration. Before heading to the dealership, try this: Turn ignition to run, engine off. Turn off everything, the courtesy lamps and the headlights. Do not touch the HVAC controls. Let the hvac module attempt a recalibration. Do not press any buttons or turn the ignition off. Let the vehicle sit that way for about three minutes. If you cannot handle the suspense, go surf the Net for a bit. After a few minutes, w/out pressing any buttons, start your engine. Let the hvac system sit like that for a few minutes. After 5-10 minutes of run time, turn the ignition off, pull key, shut doors, and let it sit for about 15 minutes.
actually it is only 2 mins per step i know as it is the same for the rear air to re calibrate the sensors in the actuators trust me i did this with the rear panel removed just to watch it after i installed a new module for the rear system along with a new actuator and
here it is after you reconnect the battery cable turn the key to on for 2 mins then turn off for 2 mins then start the truck and everything should work.
 

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2007 Black Escalade EXT
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355 Posts
I tried all of the re-setting abd it would be OK for a week or so. The only way to finally fix it for good is to replace the Actuators. I replaced the Mode, Drivers Temp, Pass Temp and Recirc and have never had another problem.
 

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2007 Black Escalade EXT
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You probably only have to change the Drivers Temp and the Mode. I found the at Amazon.com for about $95 each. My Recirc was also bad as the Recirc didn't work ony truck. If you really want reliability, that's gonna be the solution.
 

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2004 EscalladeEXT
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Ok, I am having the same issue with heat blowing on the drives side and cold air on the passenger side. It happens about 40% of the time I am in the vehicle which is 40% too much in Texas. I was told by a dealership its the AC controller? Sounds like from what I am reading it could be the drivers side actuator? Can these things work intermittently? I know Trulytex says he replaced the drivers temp and mode?? What parts are these. want to fix it right the the first time. Thank you in advance for your comments.
 

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2010 Cadillac Escalade ESV
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82 Posts
Im interested about this as well. How much did it cost you to get it replaced? (labor + parts) thank you
 

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2007 Black Escalade EXT
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355 Posts
It was around $95 each for the actuators and the dealership charged me $300 labor. They have to remove the top dash to replace the passenger actuator and the Recirc actuator. The drivers and mode actuators are supposed to be easier to get to.
 

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03 cadillac escalade
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11,902 Posts
drivers side is at the bottom of the dash on the passager side a few screws and then there are two holding the actuator in place but i have no clue on the mode door actuator as i haven't had to replace it yet.
 

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Escalade
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I have same problem only when I set the temperature tool low. When I set temperature at 23 and start the engine no problem.
 

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2005 Escalade
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If your vents are blowing hot and cold air, the actuator is working...just out of sync. You must relearn your actuator to blow hot or cold correctly. Turn on your A/C to the highest blower setting and let it run 5 minutes, then dial up the heat leaving the blower in highest position for five minutes. this should reset your actuator to correctly blow hot or cold. ..that's one way to fix it. I unplugged the old actuator planning to install my new one and decided to wait till the next day. I plugged the old actuator back in and drove to the store and it blew cold air all the way and has not blown hot for over two months now. I even got a refund for the new one I had bought. Remember, if you blowing cold or hot air the actuator is working..but it's out of sync..try these things before wasting your money on a new unneeded part.
 

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03 cadillac escalade
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11,902 Posts
You can also try this after pulling the hvac fuse for 10 seconds


Escalade actuator reset after battery replacement/disconnect

Turn engine on Set climate control to “Auto” Adjust driver to 90 degrees and passenger to 60 Run 15 seconds Turn engine off Turn engine on Adjust driver to 60 degrees and passenger to 90 Run 15 seconds Turn engine off Turn engine on Adjust driver to 75 degrees and passenger to 75 * May need to repeat a couple times
 

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2013 Escalade EXT Premium
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126 Posts
actually it is only 2 mins per step i know as it is the same for the rear air to re calibrate the sensors in the actuators trust me i did this with the rear panel removed just to watch it after i installed a new module for the rear system along with a new actuator and
here it is after you reconnect the battery cable turn the key to on for 2 mins then turn off for 2 mins then start the truck and everything should work.
Sorry for digging up on an old thread but this method worked for me so I thought I would post to say thanks and share my experience.

I had my 2013 Escalade EXT in storage with the battery disconnected for a whole year and today when I put the battery back in the AC was blowing HOT air on the driver side and cold air on the passenger side no matter what settings I tried.

I found this thread by google search and did the 2 min key on/off reset method posted by The Cadillac Man and now the AC is working as it should.

Hey The Cadillac Man thanks for the reset information.

Have a good weekend!
 

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Having similar issues with my 07. Tried all of the above with no luck, any idea if the procedures are the same?
I did disconnect the battery and has negative laying on the positive for about 5 mins. When I reconnected the battery and cranked, everything worked as it should for about a minute or two, then drivers side turned warm again. Any suggestions?
 

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Update on mine. Suspension air compressor went out. Disconnected the battery while I out the new one on. When I reconnected, drivers side was blowing HOT. Drove it that way for about an HR and a half. Stopped to get gas. When I cranked it after the fill up, both sides are blowing cold again.

Sent from my SM-G955U1 using Tapatalk
 
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