How To Fix The Problem On Chevrolet Express Vans When HVAC Air Only Blows Out The Defrost Vents

This video shows the viewer how to fix the problem on Chevrolet Express vans when air only blows out of the defrost vents. The problem occurs when the vacuum controlled HVAC doors lose vacuum and can't open or close. This is part of the HVAC Air Management System.

[@dmitrynikolenko4412]

Was gonna go to a mechanic to fix this. Then found your video, purchased that hose on Amazon and replaced. Took me 1-2 mins. Everything works now! Thank you so much!!!

[@e.w.7778]

I replaced all my vacuum hoses and it was working afterwards but now nothing is working on any setting. Any idea what it could be?

[@Jimmy_Cavallo]

💥 I just had transmission fluid lines replaced on the radiator of my 2001 Express 3500 that were right near that vacuum canister. Mine is under the battery. I picked up my van and realized that the air was only blowing at the floor and not on the dashboard or at the defroster. I pulled the battery and traced the hose from that round canister up about a foot to a T fitting and saw that the hose that goes from there across to the drivers side was cracked at the end. They must have bumped it when pulling out the trans lines. I snipped off 1/2” from the end, pushed it back on to the T fitting and VOILA…. Air blows from wherever it should now. Thank you. I owe you, bro 👊🏼🍺

[@Arielacuna]

Thank you for this video , mechanic said $300 , I fixed it my self for $6 😂😭

[@eeezzztolv]

Same thing, just started today. Figures when it's 88 degrees outside. But thank you so so very much!! My van is a 2014 loaded with options, all-wheel drive, rear cargo heater, electric and heated mirrors rear cam, etc etc only 23,000 MI. They don't make them anymore so I don't want to get rid of it. regardless of all that, again, thank you so much

[@tacticaltrout]

Thank you so much! I had looked for hours for a solution thinking it was electrical before finally seeing this video. My 2016 Chevy Express 3500 can now blow through whatever vent I choose! I'd buy you a cup of coffee or a beer in a heartbeat!

[@EricGuindon-c7c]

Thank you my work truck has been driving me nuts the last few days I decided to look on you tube and thanks to your video was able to fix it in les then a minute

[@nitrisz2]

These are the types of videos that should be monetized. Not stupid dance videos.

[@markcaldwell1245]

This was indeed my problem thanks for the video. I replaced the entire hose line through the tee and up to the engine just under the right side shroud inside the van. The entire rubber line was rotting due to it dangling next to the exhaust manifold. I secured the new line with zip ties to get it away from the exhaust.

[@iarriaga45]

i have an issue. 09 chevy express. i did the cleaning on the board and charged the flow sensor. but the compressor dont do the clicks. any idea ?

[@scottmiller355]

Had the exact symptoms and the video showed the exact solution, the vacuum hose was dry rot. My local automative had the vacuum hose in stock for my 2015 Express ... hose size is 5/32 from the vacuum tank to the junction and 7/32 from the junction the motor. I purchaed 2ft of both hoses needed for under $10.

[@catchingzip]

I can’t begin to thank you so much for your perfect video of the problem that I had. You were absolutely correct with showing us that hose. This happened to me on Sunday, and I had the correct size hose from my fish tank. lol. I’ll pick up the correct rubber hose tomorrow. Again thank you so very much.👍

[@Sign-of-the-Times]

OMG! I have AC again! You rock!

[@warrenjones744]

This video just saved me who knows how much time looking for things that could be. Not knowing the system, I would have struggled. thank you sir.

[@DavidTermini]

Wow I just reached down felt around that round tank,felt the tank without a hose attached found the hose and reattached problem solved .I can not thank you enough for showing this.I put lots of woodworking vids on youtube too.Thanks again

[@3rdvoice32]

This is the most useful video i have found on youtube.. thank you .

[@joker71677]

This was spot on exactly what was wrong. Thank you so much. Four dollar fix.

[@dricolee5297]

This was indeed the problem..!! Great video... REmove DOGHOUSE. U don't have to remove seats just shift DOGHOUSE from side to side for access. MY long VACCUM hose was broken on top if my engine.. go-to lowes or hone depot and get 1/4 inch clear tubing and run through firewall to T connector under battery rack.. check other vacuum hoses too.. Supa easy fix. Thanks for video.

[@williamalbright8878]

Been a while but I’m glad you are doing a video thank you

[@alexxx1842]

Thanks man I solved it by watching your video