The A/C is FINALLY FIXED! How to replace the Compressor control valve for 2011-2015 Toyota Sienna
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- Опубликовано: 7 июл 2024
- We have been dealing with A/C issues on our 2012 Toyota Sienna since last year with subpar cooling. The a/c works but it's just not as cold as it was, and struggles to keep things cool especially during the summer.
I replaced the Flow sensor which helped a little. I then hooked up a HVAC gauges set and the readings pointed to a clog in the system like the expansion valve was bad. I went to replace the expansion valve and sure enough it failed and I replaced it. After replacing it the a/c was cooler BUT still wasn't cool enough and knew there was another issue.
My last effort was one more part which was the Compressor control valve. It was MUCH cheaper than a new compressor and could possibly be the issue.
In this video I replaced the control valve and it did solve my issue BUT it ran into a major issue while replacing it.
The Part: Electronic controlled compressor control valve (Part# EX10477C)
Brand: Universal Air Conditioner (UAC)
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00:00 Intro
01:46 Compressor control valve
06:34 A/C Temp before replacing the control valve
07:34 Starting the repair
10:51 Always expect the worse!
12:22 Reinstalling
13:47 A/C temps after replacing the control valve
14:48 Advice with my experience.
18:14 Outro
Music by Mark Generous - Just Fine - thmatc.co/?l=6991FD9F 
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Thank you so much for the video. Was about to replace the entire compressor on my 2015 Sienna but came across your video. I measured 150 psi on the high side with my gauges (about 93 degrees ambient) and I knew it was full of freon, so I was cautiously optimistic.
For others reading this, you can access it completely from the top without removing anything, just have to have patience and slightly small hands.
Would recommend when trying to remove after you have the snap ring out to grab some pliers and gently twist the solenoid back and forth. I did that wiggling it back and forth for about a minute before putting any pressure on it to remove it. Seemed to work itself fairly loose after about 30 seconds. Avoided snapping of the connector. Entire job took less than 2 hours, and almost all of that time was pulling a vacuum and refilling.
Very happy wife, thanks for the great video!
About to replace our compressor and this worked! Saved us a ton and have a happy wife thanks to you!
I am happy to hear that this helped you out. Summer is basically here and having A/C is pretty much a mist to keep the family comfortable. Thank you for leaving a comment.
thanks for the video. My Sienna is in the shop right now having the compressor and condenser being replaced but wish I had saw this first.
It seems with some research...the issue is either the flow sensor or this control valve. What sucks is Toyota doesn't sell these 2 parts separately. Fortunately I took the long route and it ended up being the control valve. Either or..hope your a/c issues are fixed....this summer is brutal.
GREAT video--EXTREMELY useful info! Thank You!!
Thank you...glad it was helpful.😎
Very nice looking Sienna
Thank you😎
Thank you so much for sharing such helpful experience.
I was able to fix my AC by following your steps. I was lucky to fix it by filling with refrigerant and then it worked with the magnet trick, which i fixed by installing the new sensor.
I had an issue though that the compressor stopped for a moment and it didn't take the refrigerant, so I used the magnet to kick it on again..
I am glad my video helped you out. I would suggest though to fill your system with a proper HVAC gauge set to make sure you have the correct amount of refrigerant in your system. Too much or too little can damage your a/c system.
Thank you for your video I’ve watched them I’m thinking it’s a common repair.
Thank you for sharing your video. I will sell it. Before I have problem
Thanks for the video, I tried to take the valve out over the weekend and I could not do it with out putting a lot of pressure with the pliers. I did not want it to break it. I will try it another day.
Thanks for commenting. I hope yours doesn't break like mine did, or you may have to remove the compressor to get the rest of the valve out. Good luck and hope it fixes your a/c issues!😎👍
Thanks for the video. I was just under my 2007 VW Rabbit tonight trying to get this “30 minute job” done. Same corrosion problem. Same connector breakage problem. Same idea to drill holes into solenoid to get a purchase point for prying it out. Hoping I don’t have to remove compressor but thinking it’s heading that way. We’ll see tomorrow! Thanks again.
Hopefully the control valve doesn't break on you. If it does...yes you will have to remove the compressor. Good luck, chime back to let me know how it went.
Removed compressor and chiseled the old solenoid out! Got the new one in. Vacuumed the system. Recharged with R134a. Enjoying ice cold a/c! Thanks again, your video was super helpful!
@@Flybywire456 That's awesome man....glad the video helped you out. A/C is a savior especially for the summer.
O'Reilly keeps a Santech part in stock. It's around $55 but if you need it fixed quickly, it works just fine. My 2013 Sienna just lost right side fan motor bearings. I'm replacing both motors.
Thank you! subscribed! I have A/C problems too, and I just installed a new engine splash guard but it looks like I'll have to take it out. :-(
Great video
Thank you👍
That's wild that you had 3 separate components in the AC system fail
It was extremely annoying to diagnose the a/c issues of our Sienna. Fortunately I was able to do the work myself. Still cheaper than replacing a whole compressor.
My 2010 Corolla LE with 126k, has an AC issue. Turn on the AC on a hot summer afternoon day in South Florida even all the way on high setting and it blows warm air for five minutes. After five minutes I can feel the cool air starting to blow. My mechanic replaced the AC refregeriant but it does not solve the issue.. Will replacing the A/C control valve solve my issue? How's your ACsystem running?
Thanks you sir really appreciate you solved the issues I have ,but of the this flow sensor is not in Africa, especially Nigeria how do I figure this solution out?
What year is your Sienna?
Hey, learned a lot from your videos... can i get some info on your antenna? I got a replacement after the original antenna broke. The new one, which is aftermarket seems to lose reception in areas where i never had an issue. Does yours work well and where did you get it... sorry tobe off topic...
I am glad the videos helped you out. The antenna is from a Amazon...we have had it for 3 years now. We haven't had any issues with radio reception. We have been on many road trips and we still get Orlando stations a little past Daytona Beach. Here is the link:
Rydonair Car Wash Proof Antenna Compatible with Toyota Tundra Tacoma FJ Cruiser | Designed for Optimized FM/AM Reception a.co/d/iPPU3Vl
Hello, very good video. Did you check the pressure before replace the control valve. My current readings are L=60, H=140. My mechanic says that my H side is too low so replacing the control valve may not fix the issue.
Your pressures will depend on the heat and humidity in your area but your High side does seem low. I did have an issue with a stuck expansion valve also before I replaced the control valve.
After I replaced my expansion valve...my pressures were a little lower than it should be based on my ambient temps. After I replaced my control valve...both sides were where they should be.
Corrosion may be because of the lower plastic skid plate being gone
Possibly but probably not. My bro in law had the same issue with his Sienna and he has his plastic shield intact and the same thing happened to him.
Before replacing, Did you check voltage on valve and try forcing voltage on it if voltage was missing?
I did not...but I could of.
The Toyota badges and front chrome grill piece is black. Did you spray paint those or buy them from somewhere?
I painted them. There are also overlays you can get through eBay.
You had so much trouble because you should have added a little bit of pressure back into the system it's under vacuum
... So it was holding the sensor in.... I just use the small oil charge and put just enough in so that it had pressure to blow it out.... Comes out easy
Hey bro was your ac kicking on for a few seconds then cutting off? I’m having this problem right now.
Not really, it was kicking on and off normal but just not cooling well. Ultimately it was my pressure control valve which I have a video on that solved our a/c issues.
Thank you for your video.
Perhaps I missed it, but with the failed control valve, were you still able to see the failure on the gauges? I have a 2015 Sienna and its AC system seems a bit lacking. When I first fire up the car when it's been sitting in humid heat (it was 91 today with humidity of 60%) and let it idle, it's blowing at around 60 degrees at the vents. After about 20 or so minutes of driving it was finally getting down into the mid to low 40's from the vents.
Am I just expecting too much from the system? It's an automatic AC unit, not a manual like yours.
Well there were some signs of restriction but nothing blatantly obvious that would be a sure fire reason to find the issue. The control valve seems to let refrigerant flow, but it sends some signal to the compressor to cycle more or less depending on whatever Toyota has set to control the flow.
Honestly it was a last ditch effort before I decided to replace the compressor.
@@itsaboutfam Thank you so much for your reply. So in my case, it ended up being a nasty and improperly-installed cabin air filter.
This is a second hand vehicle. The van has very good service records but I guess the cabin air filter was neglected a little.
I changed the filter and installed it in the proper direction and that fixed the problem. Sitting in a Walmart parking lot today when the temp was 90 and it was blowing 40F from the vents.
So whoever reads my comment, start simple. In my case, my car's AC seemed to perform BETTER in the heat and when driving more than in lukewarm temperatures. My theory is that the system may have been cutting the evaporator or something to prevent it from freezing. As soon as the air was unrestricted it was a whole new system. It was blowing 40F from the vents for the whole trip. The coldest I've ever seen it blow. :)
@@michaelwilson2891 Oh wow... something like that can cause that issue. Glad you found your problem!
Once you replace everything do you have to take it somewhere and have the code reset for it to work?
I didn't have to.
would that control valve come with a new compressor?
I assume a new compressor would come with it but I can't confirm that.
Can i change with gas in it or i have to fisrt let the gas out of tha system before changing this solenoid?
@@TheAffan1990 You will have to evacuate the refrigerant from the system.
After you replaced the expansion valve(s) and prior to installing the control valve, did you have low side pressure too high, high side too low?
If I remember correctly, both sides weren't exactly where they should be. Remember this really depends on the ambient temp is where you are at. So at the time it was around 95 degrees in Florida so my pressures should have been 50-55 low / 275-300 high. I was around 40 low / 250 high. If you search Google..there are charts on what your readings should be based on ambient temperature.
@@itsaboutfam Replaced the valve today…. It worked!
@@rustyshackleford407 Happy to hear it. This summer is a tough one.
I have a 2015 that is blowing warm with compressor cycling. System is charged. Iʻm getting equal gauge readings with compressor on and off. Do you think the control valve will fix this?
If that's the readings you're getting on the HVAC gauges....I would say so.
@@itsaboutfam I’m getting about 35 psi when comp is cycling and up to 50 when it shuts off on both high and low side. High side is not compressing. Everyone saying to just change the compressor but I have the valve coming from Amazon. For $35 if it doesn’t fix it then Iʻll replace the compressor.
@@uluapoundr Your Hi side should be higher than that. High side is normally around the 200-250ish and your low side around 25-30 ish but will also varie depending on outside temp and humidity but around those numbers. It looks like you may have a bad expansion valve. I had similar readings and not only my control valve was bad, but my expansion valve was bad too. I have a video when I replaced my expansion valve on my channel.
@@itsaboutfam So I changed the control valve yesterday, pulled vacuum, charged up the system, and same symptoms. Blowing warm air, low side pressure around 30-50 and high side very similar, not exceeding 50. I have an expansion valve on order next and a compressor just in case. Will try the expansion valve, it it works, I'll return the compressor. Any other advice?
@@uluapoundr whats the ambient temps in your area right now? Both your high and low pressures are low especially if your temps are summer temps right now. The expansion valve in these Siennas are a known issue also...so I would say that could be the issue where it failed and caused blockage. If you replace the expansion valve and you're experiencing the same issue...then unfortunately it's the compressor.
I replaced my compressor, now the shop is saying the pressures are staying high. I’m thinking expansion valve like you. But if I put a new compressor should I need to change this sensor if it’s a new compressor?
Sounds like an expansion valve causing your high pressure issue. Make sure you get the Denso brand.
Did the new compressor come with the flow sensor and control valve?
Did you fix something? I just replace the whole thing but now my ac sometimes dont blow cold and sometimes it is. Everything is brand new. I dont know whats the issue and its freaking hot outside and hate to drive windows down.
Mine accidentally blew out the control valve because the c clip rusted loose. You know how hard it is to find a c clip? BTW a new control valve worked for me too. Now COLD and before it would only blow cool
Your control popped out? Wow...did you manage to get another snap ring to hold it in? I am glad a new control valve fixed your a/c issues. 😎👍
@itsaboutfam yes ended up buying a kit from Amazon. Like 300 different sizes $11. I have enough for a lifetime now
I have same problem. Solenoid valve broke off and half is still inside the compressor. Looking for ideas how to get it out ?
In the video I had to remove the compressor. Once I removed the compressor I drilled 2 holes on the control valve and sprayed some WD-40 and used a long nose pliers to pull and twist it out.
I got compressor completely out. Okay. Thanks .
@@teziel2001 Good luck 🤞
@@teziel2001 I had to remove the compressor and after chipping away at the steel solenoid casing I drilled a hole and drove a 5/16”x 3.5” bolt just off center but parallel to the solenoid long axis. Using a claw hammer and a block of wood for leverage, I pulled the rest of the solenoid out like removing a nail.
Can't you leave some freon in it and let the pressure help you remove it?
I highly recommend evacuating the system the right way. R134a is dangerous to breathe in high amounts and not environmentally friendly to vent to the atmosphere.
How did you get the broken part out of the compressor?
I had to remove the compressor. Once out...I drilled 2 holes on the control valve and with a long nose pliers...I put each nose in the holes I drilled, I pulled and twisted it till it came out.
Is it possible if you could measure your vent air temperature at full blast on both front + rear systems during a hot day? I'm experiencing what I THINK is minor sub par front cooling and very sub par rear cooling. If you could get me the temperature of a front vent and rear vent during a high ambient temperature while the entire system is at full blast, I would greatly appreciate it. (If you do it in the sun + high ambient + full blast it'll give me a worst case scenario for how cold everything is supposed to get )
Yesterday was 94 degrees with 93% humidity and it was blowing 58 degrees out of the vents.
@@itsaboutfam The front + rear were the same? Interesting
@@captainkirk3000 That was only the front. Just took the temps for the rear was slightly warmer at 60 degrees. Today was about the same ambient temperature as yesterday.
@@itsaboutfam Thank you, I'll give my readings when I get a chance (even though you don't need them, someone else might find it useful if I ever figure out my specific problem), that's very useful information I greatly appreciate that
Hi was your sienna ac causing low idle?
No idle issues on ours.
Now that you've been through it, any tips on how to remove it without breaking it?
It "should" come out easily...BUT like you saw in the video there was some corrosion on the sensor body which caused it from coming out easily. It really depends on each situation.
I was wondering if a couple blasts with a penetrant spray might help loosen up the solenoid? Anyone try that? It’s crazy that Toyota just replaces 5he whole compressor and it’s criminal that they charge 2 or 3 thousand bucks for what should be a couple hours max and @ $800-$1000 compressor. My Highlander is due for changing the spark plugs so I went to a Toyota Dealership and asked how much the plugs cost . The parts guy said $39 EACH mind you that’s Canadian dollars so about $28 USD. I’m trying to find @ source in Canada for the plugs ( I want to use the Denso Iridium which is OEM ) and ordering them from the US would likely cost more with the exchange rate and Customs charging Canadian Taxes on the parts. We h@v3 high humidity here as well but in 7 years with this vehicle I’ve only needed to run the AC less than 60 times so hopefully my solinoid comes out easier.
It's almost better to just change out all those small components at one time. Especially if your Toyota has alot of miles.
Would this fit in a Toyota sienna 2016?
I think 2016-2020 use a different compressor. The sensor was listed for 2011-2015
How did you get it out once it broke off? Were you able to pry or what?
I drilled 2 holes on the stuck control valve and sprayed some WD-40. Used a long needle nose pliers to each hole I drilled and worked it out.
@itsaboutfam thanks. I'm just preparing lol. Might have right angle drill ready. Sometime just stuff like that breaks thug free
@@scottlanier5133 Hopefully you won't go through what I went through. If you do...at least you have an idea how to fix it. Good luck...and let me know if it fixes your a/c issues.😎👍
@@itsaboutfam certainly will...I think it's 95% the problem
Man I think this is what’s happening to mine.
I think you should just buy a recovery pump and charge your friends 90 dollars to recover there Freon they do the work pull a vacuum for them and recharge there’s. About 4 or five will pay for the recovery pump.
Hey i have a corolla 2015 s
And i did a freon recharge last year, now this year the air went warm
I tried redoing it again but it marked it as overcharged, so i vacuumed it empty and tried to recharge it but the compressor doesnt seem to want to suck in the new freon? I try to refill it but it wont take in any freon… high side was not passing 100 psi and low side wasn’t taking past like 10
Do you think this is the control valve ? Same case? The flow sensor for the previous year was located in the front, very accessible. But in 2015 it looks like they tried relocating it to the back under side…. Like they tried to make it harder to fix for diy people …
I would suggest hooking up a HVAC gauge set and someone who understands how to use it. It sounds like you may have a blockage in your system or possibly a compressor issue.
No magnet trick huh? 😔
Are you referring to the flow sensor magnet? If so...I did try it and I have a video of my replacing it but that didn't really solve the issue. Replacing the pressure control valve did.
@@itsaboutfam did you buy the control valve at a store? Or ordered online?
@@Zx14rrrrrrrrrrr I got it on Amazon....link is in the video description.