Chevy Express Van AIR only blows air through Defrost Vents - FIXED!!!!!!
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- Опубликовано: 13 окт 2024
- This is a short video about how to diagnose and fix your Blend door issue of not switching from the defrost setting in a Chevy Express Van.
2011 Chevy Express 2500 Duramax Diesel
I believe most years and models of the express van are very similar and how this blend door operates. (Switch to change the AIR from AC to your head or feet or defrost) It runs off an electric vacuum pump under the front battery tray and a rubber line to pull vacuum through the firewall up to the switch itself. I briefly explain in the video of how it all works and where to get to it and what the part is. If you have any questions don’t hesitate to comment or email me and I will do my best to help you! I had a lot of trouble finding videos on the Internet to help me find my problem so once I figured it out I figured I would help someone else. Enjoy!
I'm a carpenter and hate doing mechanic stuff. I was told my 2012 Chevy Express did not have a vacuum system by a repair shop. Made an appointment with a Chevy dealer, which I also hate as they overcharge and do more than needed. Then I found this video. Got my step stool, felt around under the battery and there was the disconnected tube. This video saved me a 130-mile round trip and I can only imagine how much money. What you did in passing has helped many people. You should feel proud.
I don’t really comment ever but I just wanted to say thank you very much. Your help saved me.
You just saved me a lot of headache brother. And FYI, it's the exact same on a gas engine express as well.
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!!!
I had no idea about the connectors under the passenger side floor, I've been roasting in my work van for the past year. Just watched this video on a 95 degree day and now I'm feeling very good in my incredible A/C. Life saver. I'm not car savy at all
After a month of asking my boss to fix the ac in the van i decided to try and fix it myself. Thank you so much its worked like a charm!
Thanks for the information. The vacuum lines on my 2015 Express 2500 4.8L were extremely dry rotted . Split in half for almost a foot. Works like new now.
Thanks so much, fixed an issue on a company van that hasnt had AC/blower working in two years!
This was the issue to my vehicle ac blend door stuck on feet. Super simple and cheap fix. I replace that hose and another one that was also getting worn out as preventative maintenance. Thanks for the short to the point vid.
You made me make my mechanic look like a chum today. Thank you sir.
Wow, I was about to put a new blend door actuator in and came across this video, yup the vacuum line was off the ball, no need to remove headlight, took like half hour or so, fixed!! Mine is a 2007 with the 6.0 gas, all I had was that ball and one vacuum line, no motor thingy. Awesome thanks
Fellow moto van owner here. Thankyou for the video! I bet this is what is wrong with mine.
Well, thanks for this. Based on the video I was able to replace the rotten vacuum tubing mostly blind without removing anything. I just reached down under the battery, pulled off the old hose, replaced that with 5/32” hose. Then mine had a 7/32” hose from that first tee to the intake manifold. It was shot too so I replaced that. I got 3 ft of both and it was plenty. 20 minute fix if I don’t count the auto parts store trip.
Your video helped. The hose on my van rotted and fell right off that plastic ball looking thing.
OMG!!! Running around crazy.found your video and I’m back blowing out the vents!!!THANK YOU
Thank you, thank you, thank you for the detail about the location of the vacuum pump! I have a 2010 GMC Savana 1 ton with the 6 litre gas engine that I converted to a camperv. I was having the same issue and, as a woman, thought I would end up having to take my van into a GM Service Centre for diagnosis and repair. However, I checked my vacuum line and found the end had simply pulled away from the vacuum pump. Because you had shown the location on the vacuum pump I knew where to look for the nipple to reattach the hose without having to remove the battery. Voila! Now my vents operate as they should. Thank you once again.
BTW: I had gone to an automotive store and purchased replacement hose before opening the hood to the engine compartment so I will have a supply on hand ready for the time I have to replace them.
Hi there. Do you recall what line size you purchased? Thank you. And what length did you get? Thanks.
I seriously agree with Elaine. I have been with this issue on my 2016 for about 3 months now during these crazy heats here. i called the dealership, $1100, or just $165 to check. I tried searching online and no help. finally I said I would try youtube and BAME! this was amazing and I was shocked that it was literally just the hose disconnected. I also because of your video didnt need to take the battery out and just reconnect it to where I knew and felt the nipple that the hose goes to. GENIUS! Love and respect -O
Man. This was very well explained and fixed my truck as well. This is the first time I’ve even considered a comment on RUclips. I’m glad I checked for a repair.
I’ve been putting this off for a while cause I thought it’d be a pain replacing those vacuum lines but it really wasn’t that bad . Got some washer fluid hoses and from autozkne and it works good. Got air blowing through my front vents. Thanks for posting
Dude your video just saved my ass! It’s about to be hot as shit here in Vegas this week and now all I have to do is replace a few lines for my AC to work! Thank you so much for posting!
Life saver! I was having a really hard time finding instructions on this and digging all over the engine bay and found this simple how to
Bro your a life saver. Saved me a lot of time and money I didnt know about that. Checked for the hoses and sure enough they had came off and they are all brittle and coming off.
Your video helped me today. I found a disconnected hose attached it back to the accumulator, that round plastic ball looking thing and it started pumping air back to my vents. Only problem is the line is so old and flexible, it collapses. Might have a clog on the accumulator nipple. When I get the chance I’m going to pull it all apart like you did and fix all of them. Thanks again!
Thank you for posting this video! For our 2006 Chevy Express 2500. A huge help to get our A/C back in our face! Solved and fixed because my vacuum lines became disconnected.
Thanks so much for posting this video. Thanks to you, I was able to fix my 05 express van vents without even breaking out the tools!
Not the exact vehicle i was working on but definitely helped on figuring out what the problem was, thank yoh for posting this vid
Thanks for the video. I just fixed my ac problem that I had for over a year. Surprisingly easy fix. Thanks
Thanks for posting! Our defrost blend door is acting up. I'm not sure if this is the problem, but it gives me a great place to start.
Thanks, I had the same problem, followed your instructions and got it fixed
Brooo you save me thanks so much, that was literally the problem, it was disconnected.
Man, did you ever save me a lot of time and aggravation.
Thanks!
Straight to the point great video you save my day winter is coming
Excellent as mine has had the same issue past 2 years. Definitely looking into it
Thank you for the video I definitely help me for what I need to do a recharge my AC and I’m buying the tube today!
Thanks you so much. My hose had come off of the vacuum ball right below the battery. luckily i didnt have to even remove the battery
Thanks for the research man.. i was about to bring it to the shop .
Thanks
Thanks buddy I fixed the same problem in my Van with your Video 👍👍👍
Great video! I fixed my probleme on my Chevrolet Express 08. Thank you vert Much!
Thank you so much just fixed this on my 2015 with a 6.0
Awesome fix man! Thanks for taking the effort to put this video out 🤙 Fixed a problem in a couple hours that has been a thorn in my side for two years now. You’re right, my vac hose was also dry rotted crap!
So glad to see your video l got same problem l will fix soon thanks lot 👍
Thanks man, AC is cooling for me finally
Worked for me. Thank you!
Omg thank you so much 👍👍👍👍 I had the same problem on my 2500
Mine was completely disconnected I have a savana 2013 and I didn't see that $200 pump only the ball under the trey was disconnected. I connected it(the tube is falling apart) and it got better but still for the most part it's still coming from the defrost vents. I'm gonna ask my mechanic to do while doing my next oil change
About to try this fix. I’m praying it works! Thanks in advance for the video!
Let me know 👍🏼
@@huntermaddox_24 I ended up finding a connection that wiggled loose. I'll definitely keep my eye out for those deteriorating hoses though. Thanks for the tip!
Nice job! Big help, I’m gonna check mine out , I got the same issue
You’re a genius. Thank you
You da man. Fixed mine. God bless. 🧑🏼🦱
Thanks …had the same issue in my 14 ..took that tray off and lines was worst than yours
I have a 06 chevy express 4.8. I am loosing Heath. Keep filling up my radiator. Finally after a weed or so I discovered a antifreeze leak under the battery. I wonder if by just replacing these hoses that’ll fix the problem. And I wonder why is the antifreeze is getting there??
Do you know what size hose I will need to purchase ?
Ty sir, I had the whole damn dash out
Genius. Thanks!
Thanks, brother.
Hopefully this is my problem I already changed the ac control module. I’ll see!
Spot on! Thanks for the vid. Braaaap!
Great vid by the way. Thx for sharing
I have 03 same problem but the vacuum line has cut from touch and i believe its vacuum air from engine not from motor thanks
Maybe you came across this issue during your vast online searches, I can't find anything on it but, whenever I take my 2015 Express over 60mph, the front AC vents switch off to defrost only. Does that sound like a vacuum line issue or some fuel economy thing in the microchip?
Shew that’s an interesting one! I am not 100% sure. I would at least check your vacuum lines
@@huntermaddox_24 I found that a hose was disconnected from a spherical container located behind the battery.
great video i have same issues on 2006 6.6 diesel i replaced all the hoses the pump i also found that the other vaccum hose going through fire wall with that one went to the bottom of another canister just on the other side passenger wheel well that too was disconnected. have you located the fuse for that pump under the battery tray? just can't seem to get any vacuum at the climate controls
You need to make sure that you have power to the vacuum motor first. Unplug the plug to the vacuum motor and turn the key on and check power to see if you have power there. If you have power at the vacuum pump and it is pumping then you just have to start tracing The vacuum lines through the firewall and up behind the radio for a leak!
Also check the door mode actuator, different from blend actuator
Where is the door mode actuator located on a Chevy Express? I’ve literally spent all day trying to find it because I don’t have a vacuum pump on my specific model and I’ve replaced the dry rotted hoses and still can’t change settings.
Thanks for the video !!!!!!!
any idea if it’s not blowing through ceiling vents in rear? only comes through down by feet vents. i have a 2017 chevy express
Good video but can you help me where the second hose is connected?
What about a express van that the a.c air stops coming out intermittently. New blower motor and heat works fine but the a.c air just stops coming out randomly than starts again ? Any ideas?
I would check all of these vacuum lines first.
Thank u I'm having the same problem
I’m going to try this out church van is stuck with air coming out of defrost vents
What is the name of that vacuum pump? Mine has power but isn't working
wait, I know this guy.
Hey, I know you!
@@huntermaddox_24 I have a weird vacuum problem but its not like yours.
@@LukeBrinkerhoffdarnit!!
@@huntermaddox_24 I found my issue. I couldn't find any leak, pulled the line off the canister and put a little hand vacuum pump on it and could pull vacuum on the system, then it dawned on me "this is intake vacuum, I shouldn't be able to do this and hold vacuum" found that some how the hose got pinched between dipstick tube and intake. all good now.
Did the new vacuum line fix the issues? Or did you have to replace the pump also?
Yes it did. Didn’t have to replace it!
Thanks, te help me alot
Thank you
Do you mind letting us know if it worked :)
If you listened to the end of the video I said I would only upload it if it worked….
Yes it did. 👍🏼
Those pumps I think are supposed to cycle on then off as vacuum level is reached. If those hoses have been dry-rotted like that for long enough it may be burnt. Hose is 100% a problem, but the pump may be as well. Use silicone hoses and you'll never have to replace them. Rubber always rots. Chevy stays in business via the service department by using cheap materials. I replaced a PCV line on a cadillac that basically made the car completely undrivable. I couldn't believe how complicated they made accessing that 4 inch long hose. It was intentionally to keep it from being a simple 5 minute fix. I've never bought a Chevy product and I never will.
What abut a noise when ac is on
I didn’t see a follow up video. Was that the problem?
Yes
THANKS
Thanks