GM Air Conditioning Pressure Switch Problem and Replacement!!

GM Air Conditioning Pressure Switch Problem and Replacement!!
Don't Charge Your A/C Till You Check This!!
In this video I fix an issue I was having with my GMC Envoy air conditioning system. While most of the time the a/c works fantastic, I was having a peculiar issue where the compressor would shut down for no good reason. Upon some investigation I came upon what's called the low pressure switch. This typical GM air conditioning pressure switch monitors the refrigerant pressures and if there's a problem it'll shut down the compressor in order to protect it. You can imagine, if this part malfunctions, the compressor will act irrationally. This irrational behavior is what I think was happing to my system. Those it wasn't very often, it seemed to happen at the worst times. I swapped the pressure switch for a brand new GM ACDelco unit and so far we've not experienced the issue again.
** I am an Amazon associate. I make a commission based on sales through my Amazon associate links.**
Here's the pressure switch I used in this video: amzn.to/3CEskP2
www.1roadgarage...
**This channel is for entertainment purposes only! Do not do what I do. Do not take my advice. I am not a professional. The methods I use may be completely wrong and/or dangerous. Please seek professional help with anything and everything and do your own due diligence (research). Working on cars is extremely dangerous. I am not responsible for any loss of life or limb or property. DO YOUR OWN RESEARCH. THIS CHANNEL IS FOR ENTERTAINMENT PURPOSES ONLY!**
FTC Disclaimer: I am an Amazon associate. As such, I earn a percentage of sales made through Amazon associate links found in the description of my videos and on my website and other places.

[@Caniac52]

Thank you so very much for this. I am retried and on SSI. I could not afford to take my 2005 Chevy Silverado to a mechanic. It has been 100 degree days here in NC. I did go purchase the pressure switch, and guess what? It worked!!!! I am very indebted to you for this video.

[@marvingiron9026]

Am in the Central Valley California getting hot at 109 degrees and my Sentra is having same problem. Iam switch the part out hopefully it works for me too

[@myveryfirstname]

I have an 06 sierra in CT, I have same issue plus at times the fan doesn't come on. I have to do this tomorrow

[@aaronandvicky7652]

@@myveryfirstname check condenser in your case. If it involves the fans.

[@PhanOT11]

Did you have to replaced both pressure switches (high & low side)?

[@carlaephotography7096]

This part replacement fixed my 1998 Chevy 2500 Silverado today. I had just replaced the compressor, had the AC charged, and then it was doing exactly as described in this video. Sadly, I hadn't seen this video until after paying $213 for inspection and then to test and replace this part. But thank you for sharing this video to save others! ❤

[@jtbaren6483]

Hey, Thank you! You have saved me much grief. I own an 02 suburban, the AC quit, I changed the pressure switch like you suggested and it now works perfectly! Very informative video!

[@animeking801]

I love that there is a GM favored channel on YT that aligns with my shared ideals of longevity and maintenance over replacement. You are doing a good thing, and I wanted to take the time to thank you for your content.

[@cookedmarbles4888]

Dude I drive the same car as you and you have been saving my life with all your niche issues and fixes

[@DavidRodriguez-dd2gq]

Man, life saver. Just in time for the long weekend. Thank you so much for your video. I used the same switch right from your video, and everything is working as it should. Clutch is turning on and off, and ac is cold as before.

[@SecurityZone1]

YOUR THE BEST I COULDN'T RECHARGE THE SYSTEM BECAUSE THE CYCLING SWITCH WAS CAUSING IT TO GO ON AND OFF THROWING OFF THE CHARGE PRESSURE I REPLACED THE SWITCH AND COMPRESSOR STAYED RUNNING AND ALLOWED ME TO FULLY FILL THE SYSTEM AND WALLA!! ❄️❄️🥶🥶🥶🥶❄️❄️❄️👍🏽👍🏽👍🏽👍🏽👍🏽 FEELS LIKE ALASKA IN HERE!!!! THANKS AGAIN I DEFINITELY SUBBED AND HIT THAT👍!

[@chrisinterest5052]

I’d like to say for a guy who’s not a mechanic. Your presentation is perfect! I haven’t applied your suggestion yet, but even if it turns out to something else. Your convenes is super logical Simply put,Thank you! I will be following you!

[@JackofAllTrades1]

I’m troubleshooting a random issue with my car and even though this is not the issue, I must say, this is a well produced video….very inspiring for my own content. Great job man.

[@RevDevGaming]

Change the high pressure switch also. There’s 2 switches on the system.

[@Alexlivingloud]

I wish I would have seen this video 5 months ago. I replace my ac compressor and after 1 month it would have same problems you described. I replace the switch and problem solve.

[@Tablesaw818]

I have a 2008 Silverado with 85K and I’m having the same issue with my A/C. I’m gonna try this repair. Thanks Jimmy!

[@paullaird7944]

Your vehicle may have a pressure transducer

[@Tablesaw818]

@@paullaird7944 Turns out it was a faulty canooter valve

[@fargeeks]

@@Tablesaw818 whats a coonoter valve??

[@Mvjunior81]

Tablesaw818 do you mean canister valve ?

[@RALPHD099]

@@Tablesaw818 i love how nobody got your joke… but in all seriousness, did it fix it…???

[@Jerryjr43]

I have a 2006 Chevy Silverado 1500 with 140000 on her and mine was doing the same thing after doing some homework I decided to replace the actuator door being my truck only has 1 and the part was cheap as well but so far that seemed to fix the issue. I wanted to also add when this problem would a cure I found that turning the motor off and restarting the motor the problem went away and my ac would work again but now since the new part is in all is good .

[@paulieglockzz]

Was your ac making a clicking noise as well? I have a 04 Tahoe that occasionally blows hot air on the driver's side.

[@Jerryjr43]

@@paulieglockzz actually I'm not sure but it did seem like the ac compressor was still running but no cold air just hot air when this problem would acur.

[@nathanford9096]

I've had issues on my '02 Blazer with the low side Schrader port sticking open, causing me to loose full charge. On the car's I've owned I've never had a pressure switch fail (I'm sure now that I've said that it'll fail lol). Good to know you can just unscrew those, I've always thought you had to vacuum the refrigerant and then replace it, vacuum the system down and then fill it back up, but this is good to know for the future!

[@MN2_Kevin_Hill_1970]

You do have to remove all the freon replace the part then vacuum the system down and recharge on most vehicles. His vehicle is probably the only one I've seen like that.

[@MN2_Kevin_Hill_1970]

Obviously not all vehicles are the same.

[@ronaldbrooks5427]

​@@MN2_Kevin_Hill_1970 no you don't not on most cars you do it just like he just did on his what kind of car do you have so I don't buy one of those 😂👍

[@tztvue]

I have mazda3. I couldn't change the switch because the freon was coming out. Not that easy.

[@anonymixx8106]

So for anybody reading this later, they're talking about systems that don't have a Schrader valve. You should absolutely check if your ac system specifically has a Schrader valve before doing this yourself because in some cars you do need to evacuate all of the refrigerant and recharge it after, because it will escape if it doesn't have a valve. It's not only in new vehicles but different manufacturers started putting them in in different years. Do your research and be mindful that I think they can be added on to some systems, and there are similar valves on other parts of some cars, so finding a replacement valve doesn't guarantee your CURRENT **ac** system has one installed. It is not at the end of the world if you make a mistake and refrigerant escapes, but it's really bad for the environment (and therefore YOU) so if you are wrong just move away from the car and return after it leaks out. I do not recommend doing this without breathing and eye protection personally just Incase, but that's me having family and friends in HVAC and knowing little enough about cars to be cautious.

[@buddybeachboy]

Thanks. My car would work fine below 85 degrees outside but when above 85 degrees ac would blow hot air and cut off compressor. High pressure switch.

[@davebaum7018]

I've fold the problem of cycling on and off is usually because the system is low on charge. The pressure sensor is telling it to turn off.

[@dpear387]

Yeeeeessss! This has been my exact issue in my 04 2500 HD. Will be trying this soon to see if the random crazy ass hot air that is completely random stops.

[@clintonswart6670]

I think you should have checked the clutch or relay. This parts cannon video isn’t the end of the saga. Guaranteed.

[@ryans413]

If clutch cycles on and off it’s a good sign the Freon is low small amounts do leak out over time. If nothing happens but the clutch works jumping out the clutch relay then it’s probably a bad AC pressure switch the PCM won’t ground the clutch relay or the cooling fans relays if the pressure switch isn’t sending out the voltage the pcm wants to see

[@babassaman]

Thanks for the video. After 407,000 my relay went out. I was really thinking it was going to be something much more involved given the mileage and everything being original. AC will make you want to put a sweater on now. 😎

[@billielandrum5802]

Informative would be good to know other systems it controls especially if more than pln connectors ie a cooling fan

[@gabrielseaff487]

Excellent video and information. Thank you for sharing it 👍

[@paulatkisson9704]

Thanks like your Chanel. my daily driver work truck is 1999 2500 sub. Runs like a champ, odometer just hit 200.000 Of course, i've replaced just about everything under the hood Spider injectors Radiator alnator starter. Replaced head gaskets. Had the heads machine, new valves, valve seats My wife's car is 06 envoy .I'm having Similar problem

[@paulatkisson9704]

Had similar problems that you've had with both vehicles so can relate. Thanks much for your time and efforts

[@AC-hq7ce]

FIRST! 😂🤙🏼👍🏼 Great vids and channel for the fact that you have an 03 suburban like I do! It seems like we’re having the same issues. Keep’em coming and you ain’t missin nothing over here in Cali but POLITICS & HIGH PRICES!

[@garycook5125]

I'm having the same problem with my 2001 Ram 1500. Thank you for making this video. Note: I have Sweetwater stickers on my filing cabinets like your toolbox has. 😀

[@dabeersboys]

Did this solve your issue? I have a 2019 ram 1500 and it's now blowing hot air at all!

[@garycook5125]

@@dabeersboys I was only able to find a high pressure switch (mounts above engine), but could find no one that had a low side switch (mounts similar to one in video). It's been a year, so I should try to locate one, again. Replacing the one switch didn't solve the problem. I suspect it's the low side switch that's acting up. For the first 10 minutes while outside temperature is high, it cools properly, then air gets hot out of AC vents. On an overcast, cool day, (or on a cool night), the AC runs perfectly, never starts blowing hot air. So I believe it's a switch related problem; the unit makes very cold air when it keeps running.

[@dabeersboys]

@garycook5125 awesome. I was looking at mine and I was only able to find the one. When facing the truck, left front side. When I search for parts online there is only the one part that shows up. So if there is two, they must be the same part. Mine does not blow cold ever. Good luck! I for some reason read 2021. Not 2001!

[@garycook5125]

@@dabeersboys Yes, your newer model is probably different. After responding to you this morning, I located one (only one), low side switch at an AutoZone in town. My wife picked it up, and I'll install it tomorrow. This problem has plagued me since 2007 (I've been too tolerant). I'm pretty anxious to see if it works. One question: does your AC clutch (on the front of the compressor), engage when you turn the AC on?

[@dabeersboys]

@@garycook5125 mine is not. :(

[@savageness9587]

I replaced the part and tried adding some Freon but the ac pressure gauge would go from red to blue, up and down. This time it blew somewhat warm air but not hot air like before. I already replaced the high side valve as well. I’m hoping I put the Freon in correctly

[@voidisyinyangvoidisyinyang885]

Now ever time I turn on the AC I do get cold air. I think the fix worked. It's already cool weather where I'm at - so kind of hard to tell. I'll keep you updated but so far very promising.

[@fargeeks]

I had this problem when the vehicle was idling in 100 degree weather , cuts off and on and off ect. Not sure if its because of that part or because these vehicles were not made to cool off the cabin in extremes temps at idle

[@jamesmumford774]

I could not agree with you more on the proactive repairs! Parts for my 89 Silverado are cheap and it is very easy to work on.

[@iwinzeazy]

Thanks man, any cheap things that we can do ourselves really helps🇺🇲💙🇺🇲

[@LewisAraujo]

Well, I like simple Solutions and even more of they are a cheap ones!. I have a liberty Kj and I changed that a/c cycling switch 4 years ago....i had the same symptoms than your truck. Two weeks ago I'm facing the same problem.... So, i will have it changed again.

[@mikefalle7910]

Had this happen to my 2015 Ram. I required a Low pressure switch and some expensive R1234YF gas.

[@LoneWolfSnowplowing]

lol, when you said "let's turn on the air conditioning, it's on" it was actually off.

[@southern_merican]

I pray that u have solved my problem. I have the EXACT same problem,(2010 chevy express) I replaced the low side years ago, now it randomly burst the refridgerant out of the compressor valve.. and I've literally replaced everything else and blew out the lines. but I don't get ANY pressure on the high side when I put gauges on it. just replaced high side switch and it's working again,......well see tomorrow

[@ryanlotfey]

Thank you man! It’s not working great 👍🏻

[@greatsanders1719]

The Ac Snowflake Button is of also.. That could have been and issue also. Good Video

[@chartreusemaiden604]

Nah, I've always ended up with the right pressure in my system, but no cold air. So I know it doesn't need a recharger. I think there is blockage somewhere or I may just need a new compressor. 2007 Lancer es. If anyone can think of whatever else it. Advice is always welcomed.

[@megastick9324]

There is a restrictor in the line with a super fine mesh screen. There are 2 types these days, an expansion valve, and an orifice tube with a screen. If those get stopped up, which is common on higher mileage cars, they block the line and need to be changed. A shop can diagnose it easy. Put the gauges on and tell you exactly what it’s doing. Finding an honest shop is the hardest part. They sell a complete kit, which is my preferred way to go. Compressor, drier, orifice tube , oil. I do my own because I have the gauges , pump and and everything. You can change all the parts then take it to be vacuumed and charged. Then you’re all new.

[@chartreusemaiden604]

@@megastick9324 thanks. I work at a shop so I have the resources to fix it. I just had no idea hownto diagnos it. Now I just need to find the time to bring MY own car in. And I'm still learning alot. I'll look into it. Thanks again🙂

[@edg1942]

Great video. Super presentation. This made my situation very clear.

[@JacobBushnell]

BAM! This fixed my issue. Thank you. 🎉

[@m.campbell2776]

Great work Jimmy

[@shawnthibodeaux3349]

Wise man GM is hell for that

[@TheLostAdventuress]

Well spoken video

[@hobe5143]

Just a FYI for everybody not all pressure switches have a Schrader valve and may need to be evaluated before and recharged after repair.

[@ryans413]

Good to research before you change the part or you’ll have tones of pressure shoot out probably in your face

[@matthewboylez34]

@@ryans413 No car guy wants a load to the face.

[@reygaona9086]

most especially since its illegal to let refrigerant out like that

[@Alexzw92]

Yep that just happened to me with my 03 outlander. Blew refrigerant everywhere. Not fun

[@sourdruid1]

Lmao wish I had known this before.

[@BubbaBigDude]

Thank you for this video. I ended up getting a Napa brand pressure switch because they were out of the genuine GM part, had to buy O-ring separately but no big deal.

[@stevesmokingshack]

wht size o-ring was it

[@danhambrick6331]

Nice job Jimmy.👍👍

[@Elialexroger2829]

Would live to receive more of your videos. They are great😊

[@FleetTech97]

A good way to verify it’s the pressure switch is to take a wire and touch the 2 pins on the connector on the ac pressure switch harness. If your clutch starts working again you know the switch is bad.

[@ramiromonroy1419]

If you do that and u got pressure on the system and nothing happens? I got the climate control module blinking 3 times and then nothing happens

[@emmettturner9452]

In my Corolla it was a bad radiator fan. You hit a bump or give it a manual spin and it would start turning and the AC would kick on… even if it was barely turning. Driving would move enough air to make things ice cold, at least until you stopped.

[@ronaldjennings9221]

Thanks so much. I just swapped this switch out, and it seems to have fixed it.

[@paullaird7944]

You can also jump the switch wire to check the circuit

[@TheMCerdafied]

Thanks for this tip Paul . This saved me a trip to the Mechanic and I diagnosed it myself .

[@ranjitgill4361]

I jumped the wire and the ac works but when I plug it in the ac doesn’t work. What should I be looking at next?

[@garyerfourth4396]

I have a 98 GMC Yukon with no ac no nothing, it has 346,000 on it but she still runs good

[@johnbassett3188]

Point is what ? Statement of Nothing Left that works , but the motor runs still ? Perhaps your motor is the last holdout part to fail ? Or Every Part Was Neglected to be Repaired ? What is the point in this experiment ? To see if the cigarette lighters Death will Blow your Engine ? Very Interesting !!!

[@SaltyReels]

My sierra wont get cold while at highway speeds, granted its hot here in az. but it did eventually get cooler when I got down to 30mph and if just in town driving it wont get cool enough.

[@johnnyarnett4904]

Got a 2001 s10 doing same thing getting new part tomorrow thank u I was thinking it was that part to

[@mrJayGarage]

Thanks a lot 👍

[@scottking4499]

I have had several vehicles which this same AC system. I have never replaced the part. I have always been able to fix the issue by cleaning the contacts.

[@JS-jv6rg]

Would replacing that part also fix an a/c blower that's stays ON even after truck is off

[@allenchow-dc6br]

Hi sir. The high pressure switch should be close when checking by multimeter . But my dodge caravan 1999 bought 5 high pressure sensor still not working. .check it by multimeter had 6 thousand ohms even thought put on compressor air does it is wrong part ? Thank

[@donaldneece689]

What if I bought a A/C compressor that didn’t have the pressure sensor on it like the original A/C compressor did? Where can I find that sensor?

[@6228557955]

thank you for posting this stuff!!

[@maryrainey6489]

I have this problem currently on my 08 Envoy. Before finding your video, I replaced the low pressure switch. Unfortunately, I still have the same problem. I honestly believe it's the high pressure switch and I am having problems locating it under my hood. I was hoping your video would have at least covered the location of the second switch ad it was mentioned in the video that if replacing the first could possibly not fix the problem. Any advice as to where I can find a diagram or a picture of the location to help me out? Thanks in advance.

[@orlandotech]

I know it’s been a few months but I’ll respond to your question. It’s usually down on the refrigerant discharge line pretty close to the compressor. That line goes straight from the compressor to the condenser coil in front of the engine radiator. Some have only 2 wires like the low pressure switch in this video. Some of them have 3 wires and are called a pressure Transducer. Transducers convert a pressure reading into a low voltage electrical signal that a computer can read. The HVAC head unit or controls have the “computer brain” as part of that piece. So it decides based on a number of temperature and pressure readings how to keep the HVAC system running close to the temperature you set it to. Those have same the simple to replace design with the valve core inside the pressure fitting that it mounts to and O ring to seal up leaks.

[@robertraggiani3534]

Hey hey buddy, I’m having severe issues with my truck. It’s a 2010 Chevy Silverado. It has no low pressure switch on the Cannes. I can’t find a low pressure switch but my high pressure switch is coming off the compressor off the small line it might be the same thing for your envoy because the years run similar check there takeoff your passenger front tire, takeoff the fender wheel well and you’ll see the sensor right there. That’s how it is on my truck.

[@jdnunnery1082]

Just replaced mine a couple weeks ago on my 1999 suburban with 85,000 miles.

[@1RoadGarage]

And it fixed the issue?

[@jdnunnery1082]

@@1RoadGarage sure did, only issue was when it quit I still had a 4 hour drive home in 90 plus degrees.

[@jdnunnery1082]

@@1RoadGarage watched your videos alot when it comes to my 99 Tahoe and my 99 Suburban. Great helpful information.

[@darthgdarthg]

I have an 01 marquis, my accumulator cylinder is similar to this gm. I recently swapped everything and hoses but the switch as I lost the new one I ordered. I recently charged it, pressure held for less than 30 min. I checked the lines and they are tight. Bought another can of r134a, charged it, drove it, checked the engine. I heard hissing by the accumulatior and noticed a spray leak where the switch bolts on, I checked for tightness which is t was, then removed it- hissing stopped. Im quite sure I isolated the leak to a $15 cycle switch which comes as a relief. Im ordering another. My compressor is good still as it kicks on and off with varying pressure. My question is: How common is a refridgerant leak from the cycle switch?

[@thelastbanana0678]

I don't know which to change this sensor or ac selenied the issue with my2015 Chevy impala when ever I stop at traffic light or road traffic or even if I hit the break little hard the AC switch off and the fan is running it high speed then it start to blow normal air and humidity is like hell but when I drive in high way It cold as good as it should be Many pp recommended to change compressor selenied and after this video it make me confused

[@joedirt5521]

Do all switches Have a shut of valve

[@utube5361]

Hi, mine is Ford Fiesta 2011, 1.6S with 20,000KM on it. Lately, I noticed that the AC compressor is not cycling off at all whenever i turn on the AC. Do u have any suggestion what to suspect ? I live in Indonesia with outside temp is like 30-35 degC. Thx

[@stephenmichael3211]

How to know which one is broken? The low pressure switch or the high prrssure switch?

[@benkanobe7500]

Is that the same part number for the 1995 Suburban? I have a '96 and think I need that. What specific O Ring did you use?

[@voidisyinyangvoidisyinyang885]

I have the SAME problem on my TB air conditioning - and previously we had the fan clutch replaced - and it didn't fix the problem. I think local mechanics just replace an obvious part. Anyway I just ordered this part locally - it's more expensive - but Amazon is just too hard on its workers. Also I'll get this sooner. I'll let you know if it works. All I know is my A/C works sometimes and then just starts blowing hot air - very very annoying!! thanks

[@fargeeks]

had this problem when the vehicle was idling in 100 degree weather , cuts off and on and off ect. Not sure if its because of that part or because these vehicles were not made to cool off the cabin in extremes temps at idle

[@ninjaguyYT]

This guy never let us know if it worked. RIP

[@voidisyinyangvoidisyinyang885]

@@ninjaguyYT Funny - it's not hot often where I live - just so happens I noticed the same problem. Works whenever it wants to. So I researched the TB - lots of people have the same problem. The AC "works when it wants to." Hilarious. I replaced the part indeed. Oh well.

[@ninjaguyYT]

@@voidisyinyangvoidisyinyang885 well, I bought a new transducer for my 18 year old Jeep, that should be arriving in 3 days. I'm probably going to forget to report whether it works. But I'm feeling like it won't. The old one was pretty loose and it didn't appear rusted or damaged. I screwed it back in easily (also I didn't feel it squirt any refrigerant out).

[@voidisyinyangvoidisyinyang885]

@@ninjaguyYT I hope it works for you! I'm slowly learning about my AC "system" - since both the dealer and local mechanic claimed they fixed it (each charging $1K) - and the SAME result - it turns off pretty fast and blows hots air. They all claim it "works." hahah. I realized that whatever repair - the PCM has to be "refreshed" or updated or whatever and no one has ever done that yet. So that obviously needs to be done but I don't really want to convince the dealer that this is crucial. I even had a former GM Mechanic tell me that they always updated the PCM to any AC repair. But GM sent out a technical notice that basically canceled the previous need to update the PCM. It was kind of like - "don't worry about this anymore." Not sure why they did that. It could be some kind of warranty ran out deal. Like if the customer's AC breaks they're on their own to figure out how to fix it. haha. The more the deal can keep doing "parts replacement" without actually fixing it - the more money rolls in.

[@logic77]

Best video on this topic

[@SecurityZone1]

Does that cause the check engine light to come on if that switch is bad?

[@themachine8009]

Jimmy what camera do u use? Your vids look very clear. Thanks for sharing

[@robertcapaldi3703]

I hope to god this is the same problem thank you so much I will let you know

[@donaldmalone9527]

Yes ,that the high or low pressure switch

[@cashmeoutsidecarter3780]

I have high pitched squeal that gets louder when I accelerate. The sound is only present when I turn the accelerate on. I've justreplaced the belt and alternator on my pontiac g6. Do you know what it might be?

[@misterx4088]

check for a small child caught up under the engine....

[@antoniobarber8650]

Dealing with a similar issue same car and engine. Compressor only comes on when you give it gas.

[@jorgearredondo4123]

Great information thank you so much

[@woffordsoverlandjourneys8618]

Red are completely rebuilt all of our vehicles because we are overlanders and live in our van, that means the transmission, the differentials, transfer case, all the sensors, fuel pump, fuel injectors, we also carry an extra battery and fluids and make sure that we have the tools that fitbit's Vehicles make and model! Later this year we are replacing our Engine with 247000 miles on it like we have with the rest of them

[@ManuelPerez-gd4vv]

I am working on a 2012 Cadillac CTS that has one side (passenger) that will push out hot air at first then it takes a while before it pushes out cooler air but not as cool as the driver side. I replaced the sensor in the car but still does the same. Des anyone know what I am missing.

[@SuperCano1997]

a pressure switch is to protect your system....clean your condensor and check your fan first

[@mickjager5974]

So is the high pressure switch the one on the back of the compressor that's held in with a snap ring?

[@rocketman6478]

There's a 50/50 chance replacing either pressure switch will fix your issue. Being a maintenance/ tech myself, I highly urge you to test the system and components first rather than throwing parts at it. Trust me, I've seen many ppl throwing parts on left and right and still not fix their issue, essentially, throwing money in the trash can...

[@voidisyinyangvoidisyinyang885]

OK I just switched it out. Oops - I must have tightened it a bit too much because I thought that tab catch thing was on the bottom. So it's a half turn too tight. It's just 90 degrees too tight.

[@manojkumarvj6621]

Great insights! My chevy spark auto climate ac only blows cool air when blower is set to 1 and 2, post 2 the compressor disengages and obviously only blows hot air. Could you please help me with this situation? I have already changed blower resister controller, no luck

[@gabrielizukanne3272]

I'm facing this exact same problem with my Ford Escape 2005

[@kenk3102]

Jimmy...you would think one of the monitors of the OBD2 platform would trigger a DTC.....is that possible for your vehicle?

[@amyacostawelch9179]

Hi just a question, a mechanic said I have a leak in the pressure switch, and he wants to replace drier and pressure switch, do I need to to that? Or just the switch with new o rings?

[@daisybogado1437]

I like this guy, I’m subscribing 👍

[@456casino6]

I'm going to try this myself mine is not working and all the refrigerants good

[@Neo-tn1mc]

Typical GM switch issue. Had that on my 80 Camaro

[@melaniememe7519]

Nice thank you for the information ♥️

[@daddy14172722]

Just have a question for you, did you test the old low pressure switch and compare it to the new one? can you test the component?? please help me out. Thanks!!!!

[@drummmer05]

TY... straight fwd & easy!!! ;

[@TommieGun71]

It would have been helpful if you said which sensor you replaced, the high side or low side.

[@keepontruckin5862]

Great information thanks brotha.

[@stuartnewman6968]

What a brilliant video. Subbed thankyou very much.

[@adelalaiwi]

Great video, thanx. I have Impala 2015 and I almost face the same issue maybe. No gas leackage found, but the compressor goes off for a very long time then its on again and off again, so annoying. This only happens in summer, but I noticed no issues in winter time? Do you think the pressure switch can resolve the problem? Some the videos suggested replacing the control valve of the compressor. . Any suggestions ?

[@thelastbanana0678]

Same issue with my impala Did you found the issue and fix it?

[@adelalaiwi]

@@thelastbanana0678 Not yet. I need to take my car to an a/c service workshop, but driving in this heat without a cool a/c is another story 😧. Will try to go today maybe.

[@thelastbanana0678]

@@adelalaiwi I will change this pressure sensor If it work then it's good if not I will change the AC control valve it's do the same symptoms

[@adelalaiwi]

@@thelastbanana0678 yes I totally agree with you, those two parts are the main cause of such problems. Let them check level of the Gas (freon), it causes similar issues when its high or low. All the best bro.

[@paradigmshift9772]

May you please tell me how you knew it was the pressure switch and not the expansion valve? I am having the same issue. Thank you

[@kavak1344]

The part is cheap. Just replace it and see if it fixes it

[@jessejames5825]

how do you know if the high or low pressure switch is bad and are they the same switch too?

[@731Nemesis]

cool tks Jimmy great vid

[@innovativeintelligence4172]

Do you know what trim level your Envoy is? Btw I drive an Envoy with 315,000 miles and it still runs strong.

[@wellblowmedown7645]

05 ENVOY Xl SLE, 222000 daily driver work TRUCK. the motor not the dash tells me when to change oil. 3000 miles avg.i begin to think it's finally going to have problems cause it doesn't feel right , no light or codes. Change oil and the doesn't feel right goes away. Just typical maintenance on high milage vehicle. No where near the Tahoe nightmare previous daily driver when wasn't working on it.

[@carlosalfonso360]

2007 Chevy uplander do I have to evacuate the air cond system before replacing low side pressure switch or is there a check valve?

[@tyrc12pro94]

He must like views not answering questions..makes videos to help people but won't help them when they ask questions. Smh the people asking questions are your viewers. The reason your making money. Always forget what got them there..

[@RealLife73]

My Silverado does the same thing. I’ve found that if I turn the truck off and restart it, the a/c works again until it quits again .

[@williamsellman1]

What transmission does the suburban have? How does it shift and any maintenance done on it?

[@misterx4088]

Suburbans are all 5 speed manual transmissions......

[@iwinzeazy]

Dudes charging people $100 to to make a quarter turn with a wrench lol🇺🇲