the orfice tube was the first thing i checked and guess what it was clogged cleaned it out reinserted it and BAM cold air Thanks for the video .

The component you diagnosed as restricted is a filter. Not an Orfice tube. The Expansion valve does the job of dropping pressures. That filter is the inline catch filter for the Expansion Valve. Nice catch though.

Thanks, it really helps to resolve the issues

Just got it back from the dealer. No problem found. Usually we set the thermostats around 70 lately and the rear seemed warm. After getting it back from the dealer i used the Temp Gun and this time set the AC to 60 MAX temp. The front vents were very cold around 40. However, the rear top vents were around 55F. Just wanted to compare notes with everyone else.

Great Video I have a question i have a 2011 Chevy Traverse I've Had Ac problems after problems .Now when i turn on the Rear Ac from the main panel the Ac light blinks and the ac will cut off until i turn off the rear ac any recommendations

Great video thanks !

Great info. I have the same issue on my 2011 crysler 2011 town and country. front ac works . rear ac blows warm air when i lower the temp. with high temp settings it blows hot air. verified that both acuators are working. does it have orifice tube? can u tell me where it is located?

Having trouble locating the exapansion valve on my 2013 Chevrolet Traverse anyone have an idea description of where this might be? When you said behind the bumper, did you mean rear or front?

Would this apply to a 2014 Traverse?

Pretty sure I need this filter. I'm just not sure how to get to it... I've taken apart the inside of the car, but can not figure out how to remove blower assembly. I removed the bolt at the top, what else is holding it on?

Thank you so very much. Your instructions were easy and I did this all by myself in about 30 minutes! Girl Power!!!! Didn't even mess up my nails. Thanks again.

Great, I hope this is covered in the warranty

What? Has a rear expansion valve and orifice tube or just filter?

Where is the ac pressure control switch located

Good video man tha k u

Great video Awesome!!!

Good video. Perhaps you have more advice...just replaced the compressor (was not cycling, frozen clutch). Friend (mechanic) came over to service the system. System did not seem to want to accept freon...ac on, set to 60 degrees, passenger and rear also on, engine at idle speed. Low pressure gauge was approx 30, the high pressure side was approx 190 when the comp was off, dropped to 140-ish when compressor running. He thought the high pressure was high, and didn't seem to know why the high pressure was cycling. After thinking about it later, I figured it was normal to do this with the ac comp cycling on and off (maybe I'm wrong). I also since found out that at the ambient temp we had, the high side would be 250-270 when serviced. He thought the orifice tube in the front engine bay was blocked. From what I've found out now, there is no orifice tube in the front. I actually started thinking that the evaporator behind the fire wall is causing the problem (after stoping by the GMC service department) ...that requires disassembling the entire front dash. So, question...is it possible that it was just an improper servicing procedure...maybe not enough time given (had tried for about 5 minutes), or, maybe his tank was near empty? When I replaced the compressor, the system was verified full before evacuating the system prior to replacing the comp, so I know it's not a leak issue. Or, is it possible that the rear expansion valve is badly clogged, causing a charging problem? Or, the rear orifice tube clogged and causing the charging problem; I wouldn't think so, but I'm not an expert (and, I thought there was no orifice tube in the Acadia...is there actually one in the front also that is known only to GMC mechs? And, is there an expansion valve at the firewall...if so, is it imprudent to remove and inspect it for the possibility of the tube on the opposite side pulling away from the other side of the firewall , requiring the removal of the dash to reattach?). And, when you blew the gunk out from the front engine bay high pressure line to the back ac tubing, does that not also initially go through the evaporator behind the dash? How much brake cleaning fluid did you use? I hate to think that I'm going to have to either fork over 2500 to have an evaporator replaced, or, spend an entire weekend yanking apart the dash unit (I'm beginning to think the evaporator unit is fine...maybe that's just hopeful thinking). Thanks again for the video.

Where are these parts located? Can't tell where these lines are.

I have similar problem but it’s opposite of your problem. Mine blows cold air in the rear and hot air from the front. It’s a 2000 GMC Yukon. Any idea what the problem might be? Do you think it’s the same problem as yours?

Need help with 2012 Acacia Denali. Its blowing all hot air and once in awhile i smell burnt crayon smell. We've pressure tested and put freon in twice. We checked all 3 front actuators and they seem to work fine. What should we check next??? Don't have money to pay someone along with buying part.

Hi I have a 2010 Acadia and I'm going crazy looking for a second Extension valve my AC goes cool to hot if you could help me with this problem I will A preciate it thank you so much.

Needed help. Got this clicking sound. Checked my actuators. Everything cooln heats front and rear. The clicking sound is coming from above the cabin filter housing. There's some part above i see n feel moving but dont what ut is cuz i probably have to take the dashboard out. Do u have a clue?? The clicking sound goes away when the recirc button is on. When its off or on defrost, it starts clicking

I've located the actual expansion valve but I cannot get to it with the muffler in the way. how do you get around this? does the bumper have to come off?

My ac works on driver side front but passenger side front and rear vent blow warm air to replace the expansion valve and orifice tube do i have to get my ac Freon evacuated from my system

This is my problem I put freon in it was for a little while after that warm air now it hot air please what is wrong

i am having the same issue with my 08 buick enclave..my question is how do you remove the expansion valve? and as for the cleaning process what kind of air gun would i need? links would be greatly appreciated. and a step-by-step on the cleaning process.

My GMC Acadia AC button up front blinks yellow 3 times when I press it & no cold air comes out ... what could it be ? Lmk please. THANKS

How much does this cost is such a common problem what happened to dealerships recalled it and fixed it already

My 2009 Acadia blew hot air on the left and cold on the right. Replaced an actuator and now it blows cold on the left and hot on the right. 😑 replaced another actuator and nothing changed. Someone said to disconnect my Battery and reconnect to calibrate actuators. My ac also hisses and the left vent that blows cold air blows warm air while idling or in park. Colder air with more rpms it seems. But the passenger and rear always get warm air. This is so frustrating. Any tips on what the fix is?

Thanks for the video , very educative , i do however have a question since it does involve acadia ac but its not related to rear blower my ac light flashes 3 times and stays off and it wont turn on, the blower blows warm air even thought screen says 60 ac never turns on i read online that refiling the freon can fix this but person at autozone told me that ac has to be running to refill the freon so what if any of this is true and what can i do to fix it its starting to get warm outside and ac is needed thank you in advance

how to stop a transmission leak on a 2007 gmc Acadia

wow awesome video...ac work is a pain in the balls

How about when is blowing cold and not hot air?

OMG How much does this cost to fix?

Has anyone sourced the orings? I figured if I do flush the line I would replaced the orings.

how do you recharge the rear AC

follow this information and you will have ice cold air conditioning

Also all the Freon ran out now

You dont have to take off all the inside panel, just go below rear passenger tire, take the fender liner, take 1 13mm nut out off the ac lines, then pull the high preassure line, the problem is to find this part

I have similar problem but it’s opposite of your problem. Mine blows cold air in the rear and hot air from the front. It’s a 2000 GMC Yukon. Any idea what the problem might be? Do you think it’s the same problem as yours?