Replace AC Pressure Switch
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- Опубликовано: 11 июл 2020
- #Silverado #Chevy #PressureSwitch #JoshBrown
Replace Your A/C Pressure Switch
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Life saver!!! Exactly what was wrong with mine . Jumped switch and compressor come right on . Thanks bud
Appreciate the info. Got it done! My compressor started cycling the moment I changed my lo switch and O ring. 👍
quick, no b.s. and straightforward - good class
Good video. My switch in Nissan was not that easy to get off and I should of had a towel to catch freon that shot out. Your video was excellent in helping me to locate the switch in my car.
Did you add Freon back in? I have the same issue it’s my Sentra blowing hot air
FYI-There is a schreader valve underthe pressure switch, so none of the freon will leak out when you remove it.
Thank you!
Thank you, was genuinely worried about any leakage. Nifty design!
Gracias. Esa era mi preocupación.
@@santiagogarcia4932 lo trate con mi carro y no tiene esa valvula. Cuando lo estaba sacando empezo a salirse el gas asi que no lo pude hacer. Tengo un honda civic 09.
@@raultineo772 enserio? Yo pienso hacerlo mañana. Espero y mi coche si lo tenga. Ya que ya gaste dinero en el refrigerante.
I wish I found this video a few hours ago I just waisted 42 dollars on refrigerant that I didn’t need. Great video
Yep same here 🤦♂️
Same.
Sameeee
Me yesterday!!!!!!!! In 105 heat mad!!!!!!
Yet still not a total loss because you could have always took it to a mechanic if we didn't have RUclips or videos that people have helped out at all with and have potentially lost more money for no reason
I have a Nissan 2013 Altima did the testings and everything kiks fine..only when I turn my car on the clutch won't kick in, neither the fan .. that works with it.. thanks for your help.. God bless
Toyota dealership wants to charge me $700 to do this… thank you for posting videos like this🙏
Exactly why people hate dealerships. 200 to change an incabin air filter plus another 50 for the airfilter that takes 5mins to change yourself. The only thing I bring my cars and trucks for at a dealership is the oilchange (mercades) is because if they fk it up they will fix it.
F’ckin Nissan dealer charged me $850 to change the CVT transmission oil. 😮
Very good and full of AC knowledge.
Excellent video. I was shocked to see the Schraeder valve under the cutout switch! I assumed you would lose all your freon by taking off the switch! Is this common? My 2011 RAV4 appears to have a bad LP cutout switch, but I was afraid I'd lose the full charge by taking it out..... Fingers crossed Toyota also installed a valve under the switch!
Fantastic blog and very informative
Fantastic vlog and very informative
You my sir are a life saver
very informative.good job
Love it, thanks for all these videos
Thanks so much. I pray for God to reward you for this
Thanks,good video!
Good video, thanks for sharing bro
Nice and informative
Good morning ,thanks very much, have great time.
i have an 88 blazer and while driving once in awhile my ac will just shut off and then later come back on.Now my system has been converted to r 134a will this switch likely be my problem?Thanks for the video!
Local shop is trying to charge my Dad 80 bucks to do this. Thank you brother
My local shop was trying to get $140.00 to do this repair.
How about $250.00? They want to charge $140.00 for coolant, in the video it doesn't show coolant being discharged, does the coolant need to come out?
Not on this model, It has a needle valve that open closes when removing it,
Is there more than one pressure switch? Low pressure switch, high pressure switch? Or is that bs? Because the auto shop said I needed to replace both because the failure codes indicate both are faulty. Are both switches the same?
Antonio. We’re there two switches? What car you have.
can you change the pressure switch if the system is over pressurized
I have a 2001 ford escape.the ac was new 1.5 yrs ago i had it replaced957.00.2 days ago it started not blowing cold the gradual tempature fall.the clutch engages then disengages constantly.i tried the paper clip clutch never engages with it in compressor never turned on.i checked all fuses even bought a new relay fuse cause it looked heated.fan works.any ideas.im a single mom with limited funds and friends so i have to do what i can myself.also when i checked to see if any air would come out of line by pushing in on tit it did.so seems to have feon.1 auto parts guy said he thinks the line is just clogged up.idk
Yea my sensor was bad and I think a leak but I manage to fix , thanks
Interesting solution
2005 equinox is there a shredder valve at low pressure switch ? Or it need to evacuate the Freon?
Thanks for your time Brother 😎, do you need to drain the gas before removing the old sensor? Boyd, Amsterdam
That’s what I’m wondering and to evacuate the freon
Hello, do you know if the VUE 2008, that only has one pressure switch, can be replaced like that?, I mean, I dont know if I remove it will leak gas...
Nice 👍
A+ vid. Enjoy your digital hug *hug*
I have a 2008 impala does it have built in stem for mine?
thak you for saying that
Hey brother is the ac cuts on and off are is supposed to stay on. Mind even comes on with the heat is that normal
Oh, brother...I didn't even think of the pressure switches. Both mine are old as the hills and are both likely my problem. Thanks.
Hope it helps you
If you have any questions feel free to reach out to us.
Follow up.
It was the pressure switch on the high pressure side. Replace both switches, and I've been enjoying air conditioned comfort ever since. Thanks for the heads up.
Do you know where is a high and low pressure switch is located in 2006 cheverlet silverado 1500?
@@premiergoldsodinstallation1984
I know only the 2001 GMC Yukon 1500. Nonetheless, the 2001 and 2006 are likely very similar in layout.
On the 2001 Yukon, the high pressure valve is next to the radiator on the passenger side (the bottom of the radiator). It is somewhat hidden, tucked away behind all the rubber shielding. Follow the high pressure line. It is located just before the line curves upward.
(I actually took the high pressure switch out at O'Reilly's in the parking lot. I reached down from the top, down alongside the radiator. This sucked, because it was totally accessible when I was working on my engine the week before. It's a small space and a tight squeeze, but I managed to get a wrench on it and remove it. I wanted to take both the high and low into the parts store to be absolutely certain I purchased the right ones.)
The other is right on top of everything in clear view near the condenser (the tubular canister, covered in silver insolation shielding). Easy to see.
Thank you!
So if the paper clip method works it’s your ac pressure switch??
It's true that you have to evacuate all the ac before replacing the ac switch sensor??? And then have to fill it up again????
EXCELENT
That's great presentation. It is good if you tell the H side or L side, and where the other switch located, what car it is. Thanks
Pos chevy
my clutch is always running when the AC is turned on. it does not cycle on/off. Would it be this pressure switch?
Nice video
The paper clip process is needed to get the clutch to engage so the system can take refrigerant when it's too low.
Depending on the vehicle manufacturer yes that's correct
Not only. , That's for the compressor by pass.. what this man did was to bypass the high low sensor . Using a paper clip to check to see if it is the switch.
Thank you
Good video
Josh, did evacuate the freon before you replace the switch? Or does have a valve stem built in?
Built in valve stem
Awesome video! Awesome question! I wasn't sure if you needed to evacuate the system or if there was a Schrader valve in. Thanks a lot for everything guys.
is the valve a common design? I have a Nissan Frontier pickup and wondered if this would de-pressurize my system. Thanks for the video and saving us some dough!!!
Josh. I am having this issue on a 02 Ford Mustang. The air is warm. It has Freon in the system. But the switch is making a hissing noise where it’s leaking. Do I need to let Freon out. Of the mustang. Or do they all have the built in valve any info wud be helpful thanks for a great vid
@@mattbaines3317 I believe all the vehicles made have the valve stem just like the charging ports do you can replace the sensor with out having to evacuate the system. There’s no way a AC system just needs a charge if it dose there’s a leak but a faulty sensor like the low pressure switch can keep the PCM from energizing the clutch relay and keeps the compressor from running. The PCM will also kick the cooling fans on full blast under the hood cause the fans need to work for the AC to work properly as well. On my car my AC worked last year then I had a very cold winter this summer the AC quit I knew there was no leaks cause I checked all the hoses and connections and the dash in the car wasn’t oily so I know the heater core unit is fine. Replaced my switch boom work clutch engages cooling fans came on in 5 minutes had cold air. Switch was faulty
I did that and green luid along with air came out? ?
question are the lo and hi pressure sensor the same size ? i changed out the hi side and if the same size i can buy another one i have a 2010 hyundai Tucson
Update please
Have lost the electrical supply to the compressor! Does this have anything to do with that? 1997 Dodge Dakota!
Did you have to reclaim the refrigerant in order to do this. Or can you get away with not doing it? I don't want freon spraying everywhere when I swap mine
On this Ford u do not have to recharge its a valve like your tire built in the accumulator it's called a schrader valve !! Hope this helps someone!!
Thanks
Hi brother thanks for your videos I'm a subscriber.
Question please...
I have a 1995 Lexus LS 400.
The radiator fan is not activating.
It does work because i tested it.
I disconnected the connector that's connected to the ac receiver drier and the radiator fan turns on and stays on continuously the whole time.
But when I reconnect the connector the radiator fan turns off.
I'm trying to fix the fan so that it turns on when I turn on my air conditioner but the fan does not turn on when I turn on the AC.
I feel like it has something to do with that connection but I'm not sure.
Do you think I might have a bad sensor that's connected to the receiver drier?
Would that be called a
"High Pressure Sensor" or something?
Thanks.
Anybody knowledgeable please reply soon.
Does anyone know if i actually have to drain all the freon out of my system b4 replacing the pressure switch? I found the info in 2 different areas on the web but want to make sure, i have a 09 hyundai sonata se 4cyln
Thankyou.
Thanks. Problem solved.
Is there more than one pressure switch? Low pressure switch, high pressure switch? Or is that bs? Because the auto shop said I needed to replace both because the failure codes indicate both are faulty. Are both switches the same?
Some cars have two some just have one my car just has one on the high side. Yes you could have two switches um the high side Is usually a smaller hose then the low side more pressure on the high side hose the low side less so both sensors could be differently shaped.
can i replaced pressure switch without pump down?
Just saved me lots of $$$
Good
Is this for the low side or high side switch? Are they interchangeable? And low side usually go bad and not the high side?
Low pressure side
@@Precision.automotive thanks 🙏🏼 ☺️
my issue actually turned out to be a bad connection,got her fixed!
We are glad to hear that you got it fixed
@@Precision.automotive Thank you!
I ck all switches fuses fill refrigerate clutch engages runs cold after then back to hot how hard to ck for leaks or what next? Please . This was a great video.
Does AC have to be empty to replace this?
Is there a high and low side pressure switch? Is it basically done the same way?
I believe the high pressure cut off switch will be on the back of the compressor
Did you say your truck was drained and no pressure in the system so folks just don’t go out and unscrew that switch?
So, I bypassed the relay just to check if the clutch works and it did engage, but there's no cold air coming out... I think the system might be low on refrigerant, or maybe that switch is preventing the freon from flowing?
Check your blend door actuator15-72507 it might be stuck. Also check your ambient air temperature sensor15-50353. Those two come in to play from what Ive researched, im on the same boat.
Do you have to depressor the system to change the low pressure switch
Nope, just did mine on a 2020 Chevy, it has a check valve to keep it from happening. I did get a short mist but it didn’t unload the system.
Anyone know what could case the air-conditioning temperature to stay the same when you turn the control from blue to red? I replaced the unit with a used one thinking it might be in the control knob, but it still does the same thing. Doesn't always switch to hot either when it's off the ac and over to heat. I assume they may be some other switch that controls this?
They would be something in the cabin side either control board or maybe the blending doors
Some vehicles has these small motor things called actuators/blend door actuators that adjust the temperature and air direction through different vents. Try looking up your model car and ac actuators
is this switch for both high and low pressure? got a system thats giving me lots of trouble from nowhere
No that is the low side. The high side switch is usually by the condenser
@@adamwortham6426 Well im not even sure at this point if this system has pressure switches at all. Ended up being a short in the clutch anyway, what a pain.
Adam. Is the switch the same one on low and high side. Can I just purchase two of the same or they’re different ones? 2011 srx.
Maybe someone can give me directions. My a/c works good untill I step on it then my s/c clutch turns off and stays off. But if I cruise it and let accelerate with ease then it will stay on. But again if I do step on it then it will turn off.
My AC stopped working last Saturday on my 2015 Hyundai Elantra the day I used GDI valve cleaner. Now my clutch never disengages and always spinning even with AC off and after disconnecting power to compressor. I hooked up A/C gauge set and the low side reads over 120 ( retard) and high side reads 112.5. Haven't tried checking the switch yet. Thank you Josh
I have a Hyundai Elantra AC video I'll upload tomorrow
@@Precision.automotive I disconnected the switch for the fun of it but the clutch is still engaged. I wonder if it’s just a bad clutch. 😃
Do I need to vacuum the system out before doin that?
Yes it's recommended
Does the freon need to be taken out before doing this?
Not if the socket has a Schrader valve that seals as you remove the sensor. It'll squirt a tad and then seal if you unscrew it fast by hand. Same as a tire.
After the 70s most AC fittings have valves to avoid purge and refill for minor fixes like this.
Jumper the plug first to see if the pressure switch is the problem. If the AC now engages and blows cold...that's your problem.
If it engages and doesn't blow cold, then likely you have no 134 refrigerant. You can use the jumper trick to fill it (freon must be flowing for a DIY filler kit to work), then plug the harness back in. That means the pressure switch was working correctly and you have a leak somewhere.
Can u tell me the part number everyone tries to sell me a part of the switch no way I see to take the part apart
Sorry I can’t I took the old one to my Chevy dealership bought the correct one
I thought paper clip was in just long enough to make it take freon. Then remove paper clip and plug back in
Update my response:
Ok i get it. It's just to see if compressor is clicking on and off
In my 2004 Chevy Avalanche, i have 2 electrical connectors .Why is that and will it matter which one is connected??
Yes, one is high side. the other is the low side pressure switch
@Precision.automotive do I switch them out because the black one is not connected to anything
Just wondering if it really is around $8 for the part… cos o’reilly charged $75 for it… still cheaper than the $500+ to fix from mechanic… but where should I have gotten the part?!?!
He's probably talking about savage yard prices
When you remove this switch, are you going to lose refrigerant or is the system still sealed?
I was searching for that myself... i beleive you will have to have system empty before changeing switch...
Does anyone know if you have to empty the refrigerant first?
You don't have to
So I don't have to turn anything off? No Freon will come out?
Nope
Isn’t there more than one ac compressor switch low and high ?
Yes this is the low side switch
Do you have to reset anything after you replace it?
No
But always check fuses for safety
@@Precision.automotive ok thanks i changed them out and engine won't clear so i got keep troubleshooting
Did you have to empty the freon?
No
What wrench did you use what size
Ikr!?
Mark Carrera he used a 16 mm
Hi is it AC refrigerant triple pressure switch? Error code 23
Question, will abad AC pressure switch also cause the AC compressor to disengage when the engine reaches operating temperature? AC works great for about 10 minutes and then the compressor clutch disengages and keeps blowing ambient air.
same here.. but intermitent.. can work for several months and also only for like one hour.. really annoying
Yes, a pressure switch will make it do that
@@brandysigmon9066 dont know if the answer were to me or to the original poster/comment. But.. one other symptom i have is the amount of cooling temperature can also be intermitent. I can have cold air from vent, but not that freezing cold. It comes sometimes after one hour or i can have it in 15min or direct. Really intermitent that too. Compressor running. Would it be some pressure switch too? does it regulate how cool air i get from the vent? if it only will be cool air or that freeezing cold.
Is this a low or high pressure switch
I dont think there are switches for those I think thats for filling the system with Freon
That's a high
@@Austin.the1st no it’s the low pressure switch it’s on the receiver dryer side what it dose is it looks at pressure in the system it’s a safety to protect the compressor from burning up. Sometimes the switch can just fail it gets put under a lot of stress if it fails and dosnt send a single to the PCM anymore the PCM won’t energize the compressor relay. You can do two checks to see if the compressor still works and your not dealing with a bad clutch find your fuse box pull out the compressor relay take a wire or paper clip and jump out the two hot pins if the clutch engages the compressor side is good thank god lol now find your low pressure switch this is going to test the PCM side if the PCM can energize the compressor relay. Again jump out the hot sides of the pressure switch plug if the PCM clicks the relay shut and the clutch engages good you are dealing with a bad switch or low pressure in the system let’s hope you don’t have low pressure it mean you have a leak. Check all hoses follow them from the compressor and see if you can see anything wet like an oily mess look at the condenser coil at the front of the car see if you can see any oily substance. If everything looks dry it’s a faulty switch change it then test the system
If ive changed my pressure switch and filled my car with the freon why the hell is my car still blowing hot air 🤦♂️ summer killing me man
Try the AC Compressor Control Valve...just saw a video on Nissan Altima having same issue. Do you have a Nissan by any chance? $40 part on bottom of compressor I believe. Try it!
Did you ever get AC fixed? I’m currently in the same boat with my Kia.
Nobody says what caused
The switch to go bad and when I pull my switch off it’s lesking Freon outbof the dryer
So you change it and it stops working what will it be then 2007 GMC Yukon
Check the high pressure switch or the low pressure switch, make sure your ac clutch is engaging, and your ac compressor fuse is good
Where is mine in a 2011 srx. Don’t even have a dryer.
I have a 2001 Dodge Dakota truck that the AC only works when the truck is Stop and not moving , when I put it on drive and give it gas the clutch turns off. Anyone here knows what this can be? It has enough freon.
Without looking at the vehicle I would assume just thinking off the top of my head that when you Rev the engine up giving it gas and your clutch is going off I would assume that it's low on Freon it because it's telling one of your pressure switches to shut off and they're only going to shut off when you're trying to drive the vehicle because it is low on freon
Hola , se puede usar directo ese sensor o afecta en algo
como lo pones directo bro solo necesito hacer la prueba pára saber sin funciona
@@j.r.730 en el conector del sensor le metes un alambrito
@@juanmedrano414 chales lo hice y ahora no saca aire por las rejillas
o sera que ese sensor que va en la alta afecta en algo a que no saque aire ?
Where is ac low psi switch on a 2012 Silverado 1500 5.3 ls
Did you empty the system ?
Yes
Um... What make model vehicle is this?
My AC light keeps blinking and won’t stay on continuously. Sometimes I have to hold the button down for the AC to work but then the AC light stays on but no AC unless I turn it on & off until the compressor kicks on then I have AC. Not sure where to start. Any ideas anybody??
quicker diagnostic if it only has 2 wires join them together of it comes on check for open circuit on the switch
Correct
Dealer estimated $599 to change this + recharging system
Report them to the police for highway robbery...lol
So many people with their cars hot because of such greedy people.
O i have 2015 gmc Sierra.