Look no further. This is the only video you need to watch for this repair. I’ve watched them all and nobody explained it as well and and easily as this one. My 2007 E250 van had this issue for quite some time and I finally found this video which prompted me to finally fix mine. Everything was as described although my line going from the back of the engine to the junction under the hood was black not red but all worked just the same. I was able to pick up the reservoir and check valve from the ford dealership for $31.00 total. Now my ac doesent cut out every time I press on the gas. Gone are the days hoping for a long downhill idle or a red light to bring vacuum to my ac. Immediately the air seemed stronger and it’s finally freezing me out while driving. Thank you for this video .....it’s definitely the best executed one out there. Thanks.

This is the BEST video for this repair. My husband just had surgery so I was using his van. I couldn’t deal with lack of heat and AC so I decided to do it myself. I’m certainly no mechanic but I was able to complete this in about 30 minutes. Being in New England, we need AC during the day and heat at night. I’m so excited to have both!

I followed this video exactly and it fixed my AC stuck on defrost in my motorhome Ford E450. I ordered the parts in the links above too. Worked awesome!!

Lord bless you sir. I have a 1997 e150 which is the only vehicle to take my 80 year old mom back and forth 60 mins each way to a hospital in Miami. The AC died like this two weeks ago. The shop said 1500 which was not affordable with all my mom's cancer expenses. You helped me fix this for around 30 bucks. I am also a lady with 5/10 mechanic skills so a dash removal was not something I could do. But this was and it fixed it. It has never blown so hard and cold. You have made a older lady with cancer very confortable for these hospital rides. Blessings on you and your family. ❤❤❤❤❤❤❤❤

I've been trying to figure out how to fix this for months. This is an easy solution for bypassing a lot of unnecessary work. Thank you!

Well done video, I've been driving my van for years without the vents working. I'm finally going to fix it thanks to you.

Just did this on my 2008 E350 van. Spot-on video instruction, everything exactly as shown. Worked like a champ, $53 fix, thanks for the great video!

By far the best video and most complete video on KZfaq. For the past 3 months I have been researching and contemplating other fix alternatives; but this video provides the best coverage of the processes involve with great narrative. Thank you SO MUCH! I will be doing my van shortly.

Best... Video... Ever!!! Worked perfectly on my RV and I cannot thank you enough. You ever make your way to central Texas, you earned yourself a beer. Thank you!

This fix worked for me. Just as an aside, when I pulled the red line back through the dog house it got caught on another black vacuum line on the manifold and disconnected it unknowingly to me. When I started the engine the check engine light came on and I got some EGR codes. I took it around the corner to my mechanic and after removing the dog house he immediately found the disconnected black vacuum line and reconnected it. Now the air conditioning is ice cold and no longer fades to the defrost when accelerating or going up hills. Bravo home fix! thank you.

Just did this today, after watching this video a couple of times to figure out what I needed to do. Parts from the dealer were in stock, although it was $72 for me. The exact hose you showed was only $5. The fix worked from the moment I cranked the engine. It's so nice to have A/C again. Everything works perfect now. Thank you so much!

Thanks for the video. Your's is the clearest and best explanation of this procedure I've seen so far. For some reason, people like to simply show their work, and neglect to explain what they did and why they did it. Thanks again.

I watched several videos on this, but yours was by far the best. Very clear and detailed. Thanks!! It’s working perfectly!

I will echo everyone else here and say that this video is concise, simple, and super-effective! I performed this exactly after ordering the parts online on my 2001 e350 Club Wagon Econoline. A/C comes out correctly now. Many thanks!

This is a great easy fix, I have a 2017 E 450 with RV. Although I had a glove box which was easy to remove I ran the vacuum hose through the bolt hole like in the video and was able to mount the Amazon ordered vacuum box to the right of the glovebox using a spare hole and a 1/4x3/4 bolt washer and nut. Had to order the check valve from O Riley but had it the next day, Works Great now. Thanks for taking the time to make the video.

After a bunch of research, this was the cleanest, easiest repair! Great job!

Just fixed my work bus, I'm going to be so happy this summer getting proper A/C at the front! Thank you for a great tutorial

Did this on my 03 e250 and took me 20 minutes. Directions perfectly explained and easy to follow. Thanks!

Very clear instructions. You even put links to the correct parts. It took me about an hour and your fix works perfectly. I cannot thank you enough . 🙏🙏🙏

I am about to fix my Econoline that have the same exact issue... ordered all the parts and I found this video to be the best one to view...so clear, so informative and excellent step by step explanation. ⭐ ⭐ ⭐ ⭐ ⭐

Showing the required parts is super helpful. Great Job! Just repaired my '99 E-350 after two blistering summers w/o AC. THANKS!!

Excellent video! I watched several videos this covered everything clearly without all the theatrics. Straight to the point in 8 minutes. Works perfectly. Thank you!!!

Thanks I followed this video on my E350 when it defaulted to defrost. It was simple and works great. You saved me I had no idea what to do.

Man, this is a Godsend! Noone at any auto shop could help me figure this out. I did exactly what you did and it all works now!

I watched several videos on how to fix this problem, this was the best. Worked for my RV that has an E-450 front end. One word, before you cut any lines, check the size of your adapter. A couple of times I cut the lines and then needed to go back and get the adapter and reconnect it. Great tutorial.

Hi, thank you so much for the video how to fix the air conditioner coming through the vent . You save me a lot of money . I look at a lot of videos but when I saw yours I said thank you God I think I can do this. And went out and got the same parts you said to use. And it work now I got cool air coming inside the van. Thank you for your time and effort you put into this video. Thank God for your video. 👍😀🙏

I chose this video to instruct me on how to fix my truck,.. and it worked like a charm.. I want to THANK YOU for posting it. All in all it cost me UNDER $30.00 using OEM FORD parts… I also have an “in” at my parts dealer so I saved some coin..and thanks to your video, I was able to do the entire job in less than 45 minutes from start to finish.. GREAT JOB DUDE!! SUBSCRIBED!!

Can’t thank you enough for the video. Just did it on my E450 Super Duty RV. I put it all together first to check and it worked like a champ. I know have my AC back as well. Thanks again

I started having issues with my heat/air only coming in the defrost, and then would eventually come through the proper vents for the last year. Just in the last month it came through the defrost only. I researched and came across this. I ordered the parts and installed them this morning. It took only about 20 minutes. And believe it or not it worked! Just wanted to thank you for the parts list and the video. Thanks! Edit: 2014 Ford E250

Thank You so much for doing this video. My E450 has had a bad vacuum reservoir for a few years. The repair at a dealership was estimated at nearly $1500. I have watched nearly all of the you tube fixes and was scared away with how complicated they were. I watched yours and by far it has been the simplest to do and was explained very clearly. Well, I just completed the repair following your video and instructions and absolutely no problems were encountered and now the problem is fixed. Thanks

Clear instructions, great video, and no rambling. This is the best video for this issue, full stop. Thank you so much.

I used this and other videos to fix my AC problem. My vacuum reservoir didn’t bolt on so nicely since my van is configured a bit differently so I used automotive double sided tape and stuck it to the firewall. So far so good. Thanks for posting this

I payed $16 for the part . Thanks for this video 👍👍👍👍👍👍 got everything you said in the video.. I FIXED IT !!! Thank You 🙏

YES! This system works! Thank you! This is the best explanation that I've found and my 2003 E350 is once again like new. What a difference having vents that blast ice-cold air! The check valve and reservoir are necessary if you want AC blowing on the long uphill stretches.

Great job bro! Perfect pace, clear voice and pronunciation. This is definitely the best video ever posted on this subject.

This worked like a charm on my 01 E-150. Thank you for making a straightforward, informative video.

Great video. My parts arrived today and 15 minutes later I was testing it out. You explained it great even I was surprise how easy you made the task. Thanks

Dude, THANK YOU!!!!!!!!!! South Texas heat is no joke with an AC stuck on defrost. I would say not all heroes wear capes but I never saw your back in this video! Lol. Really though, thanks a million!

I have a 2008 E350 with a 5.4. I did this bypass today, and yay!!! It worked!! No more whistle. The air flow goes where it should. Thank you! Thank you! Thank you!

I followed this “fix/hack” to get my AC blowing back out of the dash on my 2003 E-350 Ford Van. Easy to follow and understand his video 👍 it all worked out perfectly!

Thank you so much for this video! Fixed my 2011 E-350/Econoline. Having the parts linked in the description was immensely helpful!

This video save me a ton of money!! I bought a new canister and valve check from Ford for 40.00 total. I had it installed in less then 25 minutes stsrt to finish. It works like a charm. Thank you .

Great Video! I followed your instructions with some minor modifications and it worked perfectly! I think it took about 30 minutes. Your estimation of the cost of parts is about right too. Good job!

Holy cow! Pure genius. Ford dealership had the reservoir and check valve in stock, so picked them up today and took care of this repair in less than an hour start to finish. My 2002 E250 finally has AC coming out the front vents again. Thank you so much!

Thank you this really helped me out , I will fix my a/c now . Can’t thank you enough 🙏🏻

This fixed the problem quickly and easily. Thank you for making such a clear, detailed video to fix this super annoying issue. I have a 2006 E-250 and my vacuum hose near the Oil cap was black on both sides of the connector, but it was still the correct one. So happy to have my A/C working correctly again.

Thank you, thank you, thank you! I was hesitant to take on this task, but you really made it simple to follow.

I thought it was a blower motor failing. Wasted money. My dash vents would turn on and off. My buddy said check the defrost and there was air blowing there, so I researched it on the road and "fixed" it with a zip tie to hold it in dash vent position. Now that we are in camp, I found your EXCELLENT video and ordered parts. $79.49 via the links you provided and the RV will be ready for our big summer trip. Thanks man!!

Awesome video. Not only is the AC working properly again, the truck is running like it's old self. Thank you for taking the time to do this video.

I followed step by step, crossing my fingers that it would work... WORKED PERFECTLY!!! THANK YOU!!!

Great instructional video! Solved the problem for my 1999 e350 based camper. I bought all the parts via your amazon links and they worked perfectly! Thank you.

It fixed mine. Also mine just stayed on defrost not just when I drove but always and this worked. Thank you

This is exactly what's going on with my 97 E150. I just ordered the parts. Thank you for this video.

Thank you so much for this video! I purchased the parts you linked and followed your video. My vents work once again. Thank you!

Thank you for your help. I just finished test driving my 2014 E250 after following this video, the AC works perfectly now. Since mine had a glovebox, we had to take the 6 8mm screws out to get to the bolt everyone uses for a hole. Mine also has a kickplate on the right side of the passenger side under the dash. The reservoir tucks behind it nicely, no screws are needed.

This fixed my Rv this morning. Took about 20min. Thank you very much I appreciate it.

This is exactly how I did it but I used 1/8" vacuum line off amazon rather than the fuel line. Great video

I watched 3 videos on this topic and appreciated all 3 - but this is THE video to watch. My problem is solved!

Try disconnecting the line to the actuators and spraying a small amount of WD-40 into it and reconnect. This has worked for me on 3 other vans. Sometimes the actuators just get dry and don’t want to move under pressure. It’s easy to try and may work long as the actuators are good. Great video.

Great Video...I used the same connector that was available when I cut it up front and simply stuck them together again after leading through the Dog House and it works great. No need for check valve... box or tubing. No parts needed at all. Thanks A lot.

THANK YOU! A few tweaks as follows. For the vacuum source from the engine, drilled a 5/16 hole in the firewall just above where the dog house clip is located. Had to use a [DeWalt] right angle drill adapter with hex based drill bits to fit into the space. Kept the protective loom on the vacuum line. Reservoir: Dorman 47995 ;Advance AutoParts $40 Check valve: ACD [AC Delco]# 15-50568 or GM# 15733271 ;Advance AutoParts, exact substitute Saved and used both rubber adapter pieces (red hose and black hose under the hood). Used a little silicon grease on all the vacuum fittings. For the reservoir connection, used clear vinyl tubing with a bigger ID. No adapter hose needed. Both choices HomeDepot. I had the hose on hand, but believe it to be one of the following. UDP 0.170 in. I.D. x 1/4 in. O.D. x 10 ft. Clear Vinyl Tubing Model# T10007003 20 feet, $4.51 Everbilt0.170 in. I.D. x 1/4 in. O.D. x 10 ft. Clear Vinyl Tubing Model# T10006003 10 feet, $2.96 Tie-wrapped the reservoir in place to a tab hanging down just above it.

Tysm bro. Works like a champ now. I started with the belnd door actuator hoping that was the problem. The only difference was that in my situation it was permenantly stuck on defrost not just accelerating at highway speeds.

I watched several videos of this particular fix, and only a couple of them really condensed it down. I ordered the parts, went and got some hose from home depot, though mine was 1/4 OD by .070 ID. It worked perfectly. Once I started on mine, it took an hour or less to fix the problem, and since my 2013 E250 has a glove box, I had to find a place to mount the vacuum box. Well, since I had all kinds of space above the right side kick panel on the passenger side, that's where I mounted it with some heavy duty self stick velcro. I didn't need any additional vacuum connectors either, since I removed the one from the left side line under the hood though I bought some just in case. My AC is working properly and it gets cold since it's not going between the vents and some where else. Also of note, I was able to remove one bolt off of the bracket on the engine housing and got the vacuum line with its shield through the opening. It's nice having my AC coming back through the vents continuously where I need it to be. Thanks for the video and your own experience in dealing with something Ford should have fixed long ago so this doesn't happen to its buyers later.

I must’ve watched 10 videos before finding this one yours was the best was going nuts trying to fix this now I know what to do thank you I have a 2007 350 XL . AC is blowing out of the frost only now I can fix it thank you

Extremely helpful. Thanks for putting this together. Very simple process. Took less than 1 hr.

Great idea! I tweaked it a bit and only needed to buy a new reservoir for my 2010 V8 E350 . I was able to reuse original parts for everything else. Here are my tweaks: (1) In the engine compartment, pull the red line out of the connector instead of cutting it. The red line will hold better when you reattach it if you don't cut off its anchor ring. Also, you can reuse the connector. (2) In the passenger compartment, don't cut the black line where you cut it. Pull out the grommet and cut the line behind the grommet (or just pull the line until it detaches from its connector in the engine compartment). This will detach the original check valve. Pull the black vacuum hose out of the grommet. It should come out with a soft connector still attached around its end. Then reinsert the grommet. (3) Back in the engine compartment, pull on the black line that was connected to the red line. This black line runs to the original check valve. The check valve is now connected only to the original reservoir, since we just detached it from the grommet. In my van, the reservoir was connected to the check valve by a rotting piece of rubber hose (***this was the only bad part in my system***). I was able to pull out and reuse the black line. The original check valve was still attached to this line since its connector makes a much stronger connection than does the hose between the check valve and the reservoir. (4) In the engine compartment, I ran the red hose behind the edge of the insulation and then through the hole, so that I didn't poke a hole in the insulation. (5) Back in the passenger compartment, I connected the check valve to the red line with an original tapered connector. Then I was able to twist the tapered end of the connector into the whole where the bolt used to be. This sealed the hole from both noise and engine fumes. (I positioned the extra loop of red tube in the engine compartment so that it didn't hang onto anything that might melt it.) (6) I have a glove compartment, so I couldn't mount the reservoir near the left bracket. But there is room to slide it inside the dash above and behind the right mounting bracket. I secured it there it with a zip tie.

10/26/21--followed this procedure on a 2012 Ford E250 with 4.6 liter. It fixed my issue of only getting airflow from the windshield vents. Now I get correct airflow for all settings. My van has a glove box which had to be removed to access the "black" vacuum line. I also mounted the new reservoir on a sidewall with double sided tape behind the glove box. Another difference was he showed a "red" main vacuum line by the oil filler neck mine was black. I recommend adding the Dorman soft rubber reducer couplings to your parts list. I wasn't able to get mine to release. I needed 2, 1 for the main vacuum line and 1 for the black line to the controls. Thank You Ford Fix!! You saved me over $1000. Back in July a Ford dealer looked at it an originally replaced the function switch on the dash at a cost of $275. When that didn't work the mechanic correctly troubleshooted the problem of the check valve and reservoir but quoted around $1200 of labor.

Awesome Video. I have a 03 ford e150 and it was doing the same thing, after watching the video parts cost me $35.00 the dealer wanted $900.00 plus parts. My vents are working fine thank you.

Worked for my 2006 E350 - all of the colors matched up. Thank you!

Our 2 Econoline vans had this problem. Fixed! It's rare finding videos that actually fix your problem

Thank you! You saved me so much time and money. I don’t do dealers so my van would be in pieces in my garage. This was a 30min fix. Sincerely, THANK YOU!

Very good explanation of what is going on and how to fix it. With the cost estimates I have seen quoted to have a tech fix it, I think I will try to tackle this myself. I have a 2002 E450 on my 27' motorhome. I use to be a pretty good diesel mechanic on my sailboat, but that was 20 yrs. ago. Seventy year old gal now, and not as limber, but I'm going to order the parts and see how it goes. Thanks so much.

this is the one! best video on this subject .I own 4 E350 and i have done this to 2 so far. super easy, Great video.

Great video and step by step instructions. I used this on my e450 motorhome and worked perfectly.

Hey, just want to say I built a vacuum canister out of 2" pvc pipe cost about 5 bucks....thank you!!! It works.

Awesome Job. Thanks! Even a regular (non-dealer) Mechanic told me $450 to do this job. It cost me $40 in parts Took maybe 30 minutes.

That my friend was awesome . Just hooked it up . Worked like a charm . Thank you so much !!!

Thank you! I just finished doing this fix today. The hardest part was getting the engine cover (dog house) off. That took an hour of prying with large screw drivers and tapping with a rubber hammer. I think that it had never been removed before on my 14 year old, 2006 E350 van. Thanks for the part numbers and other stuff. I ended up using some 5/32" and 7/64" vacuum hose from Auto Zone to hook it all up. I sprayed some silicon on the gasket and the area before reinstalling the engine cover for easier removal in the future. Your video (best) and the one from the NJ Adventures guy backed each other up. Now let's see if it all holds up for another 14 years. The newer Transit Vans have only 1/2 the towing capacity of the old Econolines! (Actually 60%)

Worked like a charm! Thank you so much for your time and great video.

Worked perfectly, once the doghouse is removed/pulled slightly back, the red vacuum Line is easy to reach and pull into the cab. Very simple, 20-30min .

Best video for this issue! So quick and easy, thank you so much!

Good directions, got my parts today will do this method tomorrow. Thanks for your video.

Just wanted to leave a comment to say thanks. Very helpful. My 2001 Coachmen Catalina now has air flowing through the dash vents. Outstanding,

“We” appreciate the time you took to give a ver thorough explaination. Enjoyed and learned a lot from the video.

Wanted to say thanks, this worked for me. My 2011 has a glove box so the location i used for mounting was on the left floorboard under the removed bolt area.

Awesome video....got all the parts and installed them today. Works great! Thank you!

I did this fix today on my e250. Some of the symptoms going in: No A/C fan on during acceleration. Then A/C only goes with fan on high. Then no fan at all to the front vents. Started with the first symptom slowly moved to the next. Your fix works on all of them.

Thank you very much great video saved me a lot of money. The only thing I did differently was buy a vacuum gauge kit on Amazon ($18.00) to ensure that the line coming off the engine was not leaking and to verify that none of the other lines had no problem once I hooked everything back up. Again kudos to you for doing this much appreciated!

Great explanation... I was able to fix my van Ford E250 2004 after a year with that problem ✌️🙌🏻 thank you

Clever solution for an otherwise expensive repair....an excellent very precise video as well...

I have the same problem with my 98 Dodge B3500 van. Thanks for posting.

Excellent video, well done. Thank you, saved me a ton of grief... and money.

Nice and thanks. Parts online today $51.00. One thing I would do different is to use Aluminum HVAC tape instead of duct tape to cover the hole.

Very nicely done, fixed a 98 E350 in not much longer than it took to watch your video.

It worked for me also! Have 2013 E250 with lower glove compartment! Was able to take that out and put black box up into foot well. Did a couple of changes but overall worked great!

Saved me travelling through Mojave desert in summer!!! Thank you.

Excellent video tutorial for bypassing vacuum reservoir.👍

By far the best video on this topic. Thank you

I have an 01 E150 econoline 4.2 Liter after watching this vid I discovered previous owner tried to fix it an completely removed the check valve. did the full repair anyway and it works great.

Worked like a charm on my 2013 E150....Thanks