Toyota Camry AC Blows Hot Air! How to Diagnose and Repair The Problem
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- Опубліковано 8 вер 2024
- So, let's see what we've got going on with this 2014 Toyota Camry. Blows hot and refrigerant has been filled already. Customer was told it is an electrical problem and they don't do that stuff. Lucky fo rthem, we do and this Camry is a great example of how to test modern AC systems. Soooo....let's take a look.
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Refrigerant control valves are available on Amazon. I have replaced a couple already. They vary the refrigerant flow based on a PWM signal from the computer. I can tell if they are bad by reading my gauges if the refrigerant capacity is correct and there is no moisture in the system. I have also seen them stick and then suddenly open after a full system service. Some uninformed shops will try and sell the whole system when only the $30.00 control valve is bad. I just charge for the valve replacement and the system service, Happy customer. Great video. Thumbs up.
Right, but the valve and sensor are two different parts. Sensor is non serviceable.
Ron
Good work Joe. I watched the Denso webinar the other day. They guy basically admitted the flow sensor is problematic but not available as a separate part. He did suggest to look online as others are making this. If I remember correctly it's a hall effect sensor that measures a small floating magnet at the discharge port. 😁
Thanks for the description of the flow sensor.
Toyota factory: "we build it,you try and access it to service it". Confined space.👍😎
Eh, the part that sucks is the fact you have to buy a compressor because of a failed sensor..stupid design, and made for them to sell expensive parts...
@@JoesAutoElectric Correct you are on that..freakin engineers!👺
on a similar note, had my transmission for '15 Trax flushed. 90 minute job. Tech told me transmission needed an act of God to get the flush system attached
This is a goofy system. We use autel as you do. One of these is crazy in our shop. Straightforward diagnosis w/actual values. Gonna roll w/it tomorrow morning. Ill let everyone know tomorrow & share my findings. The available information is vague at best. THANK YOU!!!
It's pretty rare that Nippondenso parts on a Toyota fail after only 6 years. Great job on being thorough, and going through the diagnostics. It sucks for the customer that the sensor isn't replaceable separately, but it is what it is
Thanks...I hate these situations. Tell the owner the sensor on the compressor fails, they look at you like you're crazy when you tell them it needs the complete unit...
@@JoesAutoElectric what does the flow sensor do is it made in Japan the compressor because those Toyotas usually just need a top up
@@JoesAutoElectric - I found another page that shows that you CAN buy a DORMAN sensor and replace the sensor without replacing the entire compressor.
Yes, and I wouldn't do that to a customer vehicle. Dorman are notoriously bad.@@judyfidkowski1110
Failed just like a Nissan compressor! Good thing she stumbled across your shop Joe! Hope she bought it!
Thanks Greg. Nope, she didn't want to fix it.
@@gailtaylor1636 ya she probably didn't have the money
Great video. You are slowly inspiring me to make a major change in my life and start working on cars for a living. Thank you
Don't do it.
Exactly. Your now out of it but not by your choice. Probably nice not working on junk everyday
It is genuinely sad that professional shops out there tell a customer they cannot fix their car. I don't get that, I sometime struggle but I always fix the issue without changing "not broken" parts. I had a '16 Ford Focus not too long ago the shop told the lady that she would have to go to ford to get the ECU replaced and upon checking the car I found that the inertia was tripped and the car was out of gas do to an inaccurate gauge.
wow!!!!!!!
Always a great video from you. Testing is always the way to go.
Thanks again!
If I am not mistaken there are 2 AC compressors that will work with same sensor TSE14C AND TSE17C. You should find one of those part numbers on the compressor. I believe the part number for the AC compressor / sensor you are looking for is a TSE17C OR TSE14C for the 2.5L. The TSE19C IS FOR THE 3.5 V6 SO DON'T CONFUSE THE PART NUMBERS FOR THE COMPRESSOR / SENSOR. They look the same but apparently there is a difference. You can search ebay amazon google, etc and find it. There ranging form around 20-80 dollars from what I see on ebay. Here is a link to one. If you do a more thorough search you will find what you want. Just be careful as some ship from china on ebay and shipping will take forever. I see them shipping from the united states as well that is what your looking for to cut down ship time. Besides that there all probably made in china no matter where you purchase from. www.ebay.com/itm/A-C-FLOW-SENSOR-for-Denso-TSE17C-Compressor-fits-Camry-RAV4-Scion-TC-2-5-Liter/122789060293?hash=item1c96cc5ec5:g:OSgAAOSw0wRZ-jAv
quick tip, put a magnet on sensor, if compressor starts working, change flow sensor.
Great video on modern A/C system.
Glad you liked it!
Top notch diagnosis, I leaned something new today, nice job Joe.....
Thanks!! Appreciate the support. And glad it helped.
Joe's Auto Electric
The pleasure is mine always.....
I've verified that placing a small magnet on the sensor will change the voltage just enough to allow the AC to start. Was the tool you were tapping with magnetized at all?
This is the truth!
Great diagnostic tip.....
.....gets my '13 Highlander 2gr-fe blowing cold, but mine will not restart after....
Now I'll explore replacement with aftermarket flow sensor.
I came across the same issue on a 2010 Rav 4...Seems like a trend with those compressors...
Did u change ur compressor? I have same issue on my rav4 2007
This is an extremely common issue. This is my understanding of it. The sensor usually does not go bad. (When I see a sensor that quite working it has always been an aftermarket sensor.) It's a hall effect sensor, it just sits on top of the compressor case. Inside the compressor there is a metal disk that gets pushed closer or further from the sensor pulling the signal to ground ground when pressure ("flow") increases. The issue is that corrosion builds up pushing the sensor away from the compressor. When the system is off the HVAC ecu expected to see 3.8v-4.2v, this is its circuit test. When the sensor reads below that it flags the sensor bad (code b1479) and does not send power to the control valve (it's a clutch less compressor). If you push down on the sensor bringing up the voltage a smidge, the compressor kicks on. The problem is that the sensor can not be removed and then clean the rust because it breaks when trying to remove. To prove that the sensor really does work you can activate the ac "clutch" under active test and you will immediately see the flow sensor voltage change and show flow, it's just that the ECU flags it as bad sensor with it's rest voltage
Usually Nippondenso parts are pretty reliable but nothing is perfect all the time. Looks like the sensor was removable with a lock ring. Sucks you can't just replace that. Great video Joe!
Yes, removable, but not available. Dealer says they only come with the compressor....
@@JoesAutoElectric can you get it from Denso or does someone rebuild them
@@neilmurphy845 Get what? The sensor? It is not available.
@@JoesAutoElectric ow so not even Denso make it that's one silly design
IATN has a bunch of these flow sensors listed failures.....the debate is 3.73 volts ac thinks compressor is flowing so no on command....3.78 volts is no flow ac commanded on....o.o5 volts!????...the Toyota test data is useless...if you do a compressor please put flow sensor data on your channel.....this flow sensor has become a major problem and sets no trouble codes...so lots of hair pulling out for techs during testing..thanks sonsauto
It is simple enough to diagnose. Tap tap tapperooo lol She declined the repairs...but I will try to get data off a known good for the channel.
We live in a world of not sold separately it sucks, good diagnosis.. that lady is going to appreciate being nice and cool👍👍👍✌️
She declined the repairs...
Good video Joe. It's a shame you just couldn't replace the sensor. Why don't they make things simple. Thanks for the video. Stay well Artie ❤️
My thoughts exactly
My boss and I had a similar discussion. He believes it to my the DIY / shade tree mechanic go away. Make more repairs require special tools, and the bigger shops(dealership they hope) make more money.
My 2 cents...Old school gauges and reading pressures on the new variable swash plate is a 2-3 min diag
Thank you! I appreciate that.
One would think they'd use a separate flow sensor. Buying a compressor merely because a small part of it doesn't work- expensive. Thanks for the lesson.
Yes, and it sucks for a customer, because the labor is far more to do a compressor and drier than to simply replace a sensor...Made to fail so they can sell parts. No doubt.
@@JoesAutoElectric And that's sad. I'd like to think a manufacturer would prefer to sell a vehicle that would not break down often.
Yes I would mean to say call nice work
Wow Joe no one else could figure that out? Your the best!
I am far from the best sir...unfortunately....there are many who are far worse.
@@JoesAutoElectric Naw your one of the best because you are not afraid to tackle whatever comes your way.
Percussive maintenance FTW.
If the compressor is pumping then the flow control valve is bad. It is a refrigerant control valve. I use my gauges. The high side will read normal and the low side will read over 70.
Place a magnet on the left of sensor when standing before car, right on the split pin/ locker
i use a SMP test kit for these satanic compressors. takes half the time and is accurate. four seasons has it listed as a 69636. saved many a headache for me.
Nice. I haven't seen that before..Will look into it. Interesting
@@JoesAutoElectric it gives you the ability to control the swash plate solenoid through the supplied box, or you can hook it up and monitor what the pcm is commanding. These compressors are a bad diagnostic nightmare. You know every manufacturer is using these compressors.
I wonder how long the other garage were messing around with it before they decided they couldn't (or wouldnt???) Get to the conclusion....
I don't really know...seems they weren't too interested after seeing refrigerant wasn't empty lol
Thanks for making this video. It was very well done
I also found these part numbers which you can reference to. should be somewhere on the compressor hopefully visible. I believe there denso part numbers. toyota compressor part number is 88310-0R01 full assembly from what i found online
denso
4471-1018
471-1023
447260-4172
447260-3660
447280-6290
Well, having to get out and tap the sensor/compressor is still preferable to not having AC when it's really hot out. Sort of like having to tap the starter; still better than having to push start the car.
Take a look at the compressor and give me any part numbers and specs you can find on any lables. I belive that is a denso compressor. You should find some thing like this or similar on the compressor (Denso TSE14C/TSE17C). I have some time now so I will do some research on the 2014 Camry AC compressor and see what i find.
So any updates?
Hey it wasn't me. Good video.
lol
Someone needs to build an add on tap
tap device that turns on when a/c is turned on ! LOL
Bayonne , New Jersey 07002 !!!
Good video. Never heard of a flow sensor before...... thank you for sharing your experiences and knowledge.
Thanks for watching!
I noticed flow sensor on yours went down into the 2v range. I’m working on a 13 Corolla 1.8 with 52 psi on low side, 140 on high side, ambient is 85, evap fin 55f. Low line is sweating and high line is Luke warm. Alldata says flow sensor shouldn’t drop below 3.76v for more than 4 seconds. Mine is bouncing from 4.1v down to 3.55v. What I’m confused about is your Camry works with flow sensor in 2v range. Can you help me understand? Did you measure flow v after replacing compressor? I also have a history code b1479. Evac and recharged and ac still performs exactly as before.
Flow sensors are available to fix this issue. I replaced the Dorman flow sensor on my 2014 Toyota camry AC compresser and it works fine now. It is a bit hard to remove the old flow sensor but it works.
Yep, I wouldn't put dorman anything in when I have to stand behind the repair.
Do you think it could have been a sticking clutch on the compresor that engaged when you tapped it.?
See pinned post.
This is an interesting one
I have a Toyota Camry LE 2014 4-cylinder with an AC I bought the car in 2014 since then has throwing oily fumes on my windshield even though the AC is off. When I set the vent to get outside air only, it throws hot air and the windshield gets oily. I cannot find anything to remove the oil from the windshield. The problem is increasing to the point that it makes it dangerous to drive it especially when it rains. Could you give me some advice?
Sure. Take it to a repair shop and have it fixed.
You make it look easy Joe. Tap, tap. tap and your on fire.
Good job Joel’s.
Nice job as always.
I appreciate that
What software are you using to monitor the air conditioning system?
A little taaaaappy tap tap
Joe, what Autel Scanner you using? I am ready to pull trigger on an Autel or a Launch tablet scanner cause i still running off a scanner with no Bi Directional Capabilities...As for Toyota flow sensor seems to be a common failure on Toyota and Lexus for some reason.
This is the Elite.
come on UA-cam! A thirteen minute video and three commercial breaks? This is why I stopped watching network TV.
Thanks for stopping by bud. Really appreciate guys like you complaining about free info being put up, but those adds that help the channel providing that free info is such a bother. I grew up watching TV without cable and never once complained that I had to suffer through commercials. People like you are what's wrong with society. Go elsewhere.
It's not "tap" or "tappy, tap". You must use the full skookum sequence: "tappy, tap, tap".
Thanks for the video. Sucks the sensor isn't available separately.
Uh yes, tappy tap tap...indeed sir. LOL
Mine is 2005 Toyota same problem
Buying parts from Toyota can be pretty frustrating at times. You identify the problem as something small but then you call the parts desk and find that you have to buy something big and expensive to get the small thing. Argh! It's like buying an engine to get a head gasket.
Nice job and video
Thanks!
Surprised that it failed... But it was a "cool" diag!
Thanks, but they seem to fail rather often....
I always hated with that problem because you can't get a particular part because it's serviced as a unit.
Yes, instead of a 50 or 100 dollar sensor, buy a compressor and drier....sucks.
Damn... is it gonna need a ac kit or just a compressor???
Compressor and drier as required by service for warranty to be valid. Customer declined
Joe's Auto Electric
Yea...is not cheap it’s usually more then a thousand dollars job like that. customers is probably gonna try a few shops and his gonna get the same estimated...
@@JoesAutoElectric could you install a sensor externally to the compressor
@@brusk3978 ya should of got joe to do it would be done right
joe did the AC light Blink ?
AC light was on steady if I turned ac on.
sounds like a bad clutch, not the sensor......either way, new compressor!
Yea, only it's not a bad clutch..it's a bad sensor.
please people stay safe..........
Well, darn. This is bad news for me.
Phoenicians
I didn't think Toyotas ever broke.
Oh, they do....
Not made in Japan
👍
👍👍
Must be related to my ex!
$5 censor and went ahead and charged for a compressor, not good.
The sensor was not available, so go pound salt.