How to fix the rear AC on Tahoe Escalade Denali Code B0433 B3782 Blowing HOT rear A/C and Front Cold
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- เผยแพร่เมื่อ 12 ก.ย. 2023
- Helpful info when you have the rear air conditioner system blowing HOT air while the front climate control blows cold. YOU DON’T need the dealer for this easy and quick fix! How to remove the interior panels, A/C blower box assembly and replacement tips to make quick work of repairing a VERY common issue with GM HVAC / AC issues. Suburban Tahoe Denali XL Escalade EXT all have the same issues with blend door actuators, system reset instruction and calibration tips all in one spot!
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Hilarious, we've basically owned all the same vehicles...born in 76. Still working on the 69...has a 02 Z06 in it now. Thanks for the AC video
Very helpful video. Fixed problem on my 2013 Yukon Denali. (Air not coming out of the rear roof vents). Removing the air ducts allowed me to get to three #20 torx screws that held the upper mode actuator. I used a shallow ratchet with a knurled thumb drive. Bought a generic actuator on Amazon
$14.00. Took me about an hour.
This was so helpful!! 👍👍👍👍👍👍
I have the same codes but for the rear mode actuator instead. It’s weird that the mode actuator would cause irregular temps out the vent. Sometimes warm and sometimes cold. I would think a bad blend door would cause that erratic activity. Hopefully changing it out will correct my issue.
Great video my tahoe has the same problem. my only question is are both actuators the same. Ill most likely go with the amazon one shown in the video.
Yes they are the same and the Amazon ones have worked fine so far!
2015 Chevy Tahoe had my front condenser replaced and it’s working fine but the rear wasn’t, so they changed the rear evaporator but it didn’t help. I noticed the lines going from front to back are not even cold and no drip from the rear condensation drain. Would a bad actuator cause this?
I’m having this issue and it says video unavailable.
I’m having trouble with mine how do I know if it’s the actuator or if my lines are capped? Just bought it off a guy. Front is ice cold back is hot.
@@lillianellison7176 I would seriously doubt the lines are capped. Pull the cover and see if the actuators move when you change temp settings or get it scanned with a tech 2
How do you manually clock the rod in the door to line up with the new actuator? Just keep turning it until it lines up?
Yes the door moves freely once you get it aligned in the motor
@@trbokmro right on man. Thank you!
Have a 11 escalade esv. Just replaced ac compressor old one clutch was rusted out,, any how i try to recharge it and presure kept on going from low to red high level on ac gauge?? Am im missing something or doing something wrong clutch engages then disengage thats when is go up and down fluctuating??
That’s normal for a low charge. Pressures go up when disengaged. You should put vacuum to the system before charging it after you open the lines.
My problem is the air won't blow on the headliner, the bottom one blow just fine any Idea, I haven't took it apart?
Mire en un video un problema similar, y lo que paso es que las conexiones estaban desconectadas en la parte de arriba [ techo]
How to recharge rear ac on 13 grand caravan
With the low side port under the hood. Front and rear systems share refrigerant and all connect to the compressor.
Is there two actuators for the rear?
Yes there are two and they are the same I recommend replacing them both while you’re there
@trbokmro ok thanks the video was very helpful
@@trbokmro do you have the part number that you ordered on Amazon by chance? I found a pair for $29 but not sure if its for the front or the rear
nevermind...i jumped the gun and see it towards the end of video! lol Thanks!
What happen if the rear blows cold and the front blows hot
@@Playboiw900 the front has the same ac vent motors. I have replaced those as well. One side would blow hot and the other cold, replacing door motors fixed that as well.
@@trbokmro both the driver and passenger side is blowing hot air but the rear ac blows cold I don’t know what the issue is with the front
@@trbokmro which door motor you replace
@@Playboiw900 Would be a good idea to get a tech2 connected to it and see whet AC codes it has could be more than just the blend doors up front.