HOW TO TEST AC COMPRESSOR VALVE ON A CAR, AC BLOWS WARM FIX

[@AutoRepairGuys]

⛐ Check out our Garage to see what tools we use and recommend: www.amazon.com/shop/worldmechanics ⛐ Subscribe and hit the notification bell by the subscribe button for new videos: kzbin.info

[@mikeprice8307]

Can a new compressor have a faulty valve?

[@davidcayll]

Great video, this ac control valve is something nobody else covers. Everyone else just talks about the ac clutch. I got a harness pigtail from a junkyard car and used a 9v battery to test my ac control valve. In the junkyard the control valve would audibly click when releasing battery voltage. My ac control valve would not click at all. The control valve resistance was measured at 58 ohms where it should be between 2 to 7 ohms. Thanks a lot for this video.

[@AutoRepairGuys]

Products that we use and recommend: ► A/C Freon: amzn.to/3suaglc ► A/C Compressor: amzn.to/2Qx8jrd ► A/C Compressor Valve: amzn.to/2Qti3Tb ► Alligator Clips: amzn.to/3xlsGs1 ► Panel Removal Set: amzn.to/3YiMADu ► Tool Set: amzn.to/3p5MM6t ► Screwdriver Set: amzn.to/3XRB28Q ► Castrol Oil: amzn.to/3xBc8B9 ► Oil Filter: amzn.to/3w0Ulme ► Torque Wrench: amzn.to/32qyRwg ►Liqui Moly Engine Flush: amzn.to/3IiDBID ► OBD Scanner that we use most often: amzn.to/3I4MQfe ► Check out our Amazon Store for the tools and parts that we use: www.amazon.com/shop/worldmechanics

[@abdalqadr1]

After two yrs i see this video from Iraq and say thank you ❤❤❤

[@isslamic_7712]

فدوه للعراق واهله 🇴🇲

[@trevorseki6217]

Amazing video! Great explanation of this system.

[@kudakwashegoto2895]

Great video

[@gk_filer]

What is the resistance reading across the 2 terminals. I'd like to test it before I pull it

[@gk_filer]

We measured 12 Ohms and it was bad on a 2015 Nissan Stanza. Good one measured 24ohns

[@mufari92]

How about A/C Flow Sensor,do you have any video about it?

[@thokozanimanana65]

You guys are the best

[@deonengelbrecht5951]

Well done!

[@E85_STI]

So does the little valve inside open a lot or just a little bit? I’ve done this test and I can hear the click and I have 3 control valves two brand new and one used off the old compressor. None of them allow air to come out of the ballon and I can see the little valve inside but it doesn’t move a lot.

[@2nickles647]

Valve modulates. To control pressure

[@E85_STI]

@@2nickles647 so I ended up just replacing the compressor

[@ayhankucukozer1478]

hi. Can this valve be replaced when the air conditioner gas is full? Or does it need to drain the air conditioner gas?

[@jimffra8584]

The beginning of the video has a text that says you MUST drain the system with a properly AC device. It’s dangerous if you don’t.😊

[@aaronibarra9402]

How does the bad one sound? Can get a quick video reply ?

[@ghungroo3850]

Hi ...Actually in my 2010 Sentra 2 litre the fans are working , but the Compressor does not engage. Do you think it is the AC compressor valve.

[@adamissah452]

Please can you do it manually outside valve

[@erbthatsright1103]

Thank you! And Happy Father’s Day 2024.

[@warnin6925]

Could this cause my ac to sometimes blow cold air and then sometimes blow hot air ? . When it works it kicks it out when I turn down the ac speed ?

[@mannybudhu3905]

check your thermistor inside the car.

[@NoelCEnriquez]

does removing this part allows the freon to be release in the air? does this require a full freon recharging?

[@mrfuel1866]

Yes

[@AnhHaiCanTho]

I am working a 2020 Rav4 gas engine. I replaced the A/C condenser because it had a hole damaged from rock chip. After vacuuming 45 mins and recharge 1234yf freon with 2 oz of pag oil added, 1/2 can of freon. The low side read 70 psi and high side 80 psi. I just don’t know if the a/c could be the problem.

[@dul774.]

Terimakasih untuk ilmunya Saya akan melakukan hal yang sama pada mobil saya

[@joshuarussell138]

My Chevy Cruze AC works sometimes, and then it turns off, do you think it is the solenoid? -40F appears on my radio sometimes

[@ethanbarbee7806]

You guys are amazing. Thanks!

[@leblancexplores]

I’m looking into running a 12V compressor in parallel with this style of compressor to run while the vehicle is off. Would any backflow from that processor cause an issue with this style of compressor? Any thoughts on this setup? I’d like to install check valves at each discharge line but I can’t find anything other than NPT hydraulic style check valves.

[@AppiaLancia]

Hi please can I replace this valve on 2004 X5 without disassemble the enteir compressor from the car?

[@valerysmith1840]

How do you know if it's the compressor or the valve if the plug for the compressor has power what should my next step be to check this valve

[@pavelpavlov3193]

Brovo guys, mbogo ste gotini,very helpful video 👍👍👍👍

[@gordongalea9108]

Can i make the compressor work without connecting the control valve? m57 on landrover

[@MM2009]

My A/C running continously, this is VW passat 2010 so valve controlled. Any ideas?? Obviously is switched off. The fans will kick off when switched on.

[@leoneltejeda9330]

Thanks

[@MrHernanliom]

My low speed fan doesn’t work . The resistance of it it’s bad . The medium and high speed fan works . Now , I’ve got this code B393B:04 on a Chevy Cruze 2012. Air conditioning compressor valve control circuit open. There’s 2 wires in it , Terminal 1- power supply that comes from the HvAC module Terminal 2 control - pwd control, HVAC module grounds t On terminal 2 , I only checked with a test light , it goes on and off , so it works . On terminal 1 there’s should be voltage supply from there coming from the HVAC module but I see nothing there , I checked it with the power probe. Haven’t gone into the module directly to see if there’s voltage there or if there’s a short somewhere . Question is , this voltage supply should be on all the time or does the computer turn it on eventually ? Or how does it work ?

[@xtransam9970]

Thank you very much great job

[@ironmike742]

You can also use a tail light bulb jumpered into the flow control valve harness connector and turn the A/C on and if the bulb lights up then you know that the computer is controlling the circuit

[@jerometheodore4105]

Hi can this valve be cleaned using carb spray, amsoil foam spray and wd 40?

[@2nickles647]

No

[@eflint1]

A local mechanic told me my AC compressor itself was fine but that the control valve was stuck in the open position, but he still refused to replace the valve! I took it to another place that specializes in car AC and the mechanic there had no idea what a control valve is and claimed the compressor on my 2016 Hyundai Accent did not have a control valve! I pulled it up on an auto parts supplier website and showed it to him. How can these people be so ignorant?

[@bellarmine33]

I hear you, heard some stories about stupidity myself...:o) That's what my grandfather said back in the 70's, "Please, please save me from the Stupids!!" Been learning and working on my own A/C systems for years, had both kinds cycling and variable, still learning like you to diagnose the variable. I'm in Canada, if you were nearer I'd say come on over and I'll stick the valve in for you....:o) Just a snap ring most times anyway how hard can it be? Cheers!~ Bellarmine

[@trevorseki6217]

This is new component added to ac systems that have not been used in previous systems. I particularly don't like this addition as it is just another part that can fail that is not 100% necessary, but must keep up with the technology and learn the new systems as they come out.

[@louisaguirre6724]

They trying to make some extra cha Ching

[@johnnysalazar1552]

I need help with 2013 vw beetle bug I'm not getting power to ac compressor and I have replaced the whole complete system front to back all fuses are good . If I put power to compressor valve it turns on and works better than great😢.need a little guidance cuz none of these so called mechanics want to tell me without charging me

[@bellarmine33]

@@johnnysalazar1552 Hi Johnny, thought I'd reply and see if I can help you any...:o) 1st question is the compressor clutch engaging? Are you talking about the compressor clutch power connector, or the compressor control valve power connector? The former is easy to diagnose, the latter not so much...:o) In either case check the wiring from end to end, and check the relays and fuse panel connectors. If there's no power on the connector with the system running then the wiring or control / computer is at fault. For example I fixed a car where there was no power to the compressor clutch but there was power at the A/C relay. I traced the wiring back to the fuse block, removed the fuse block and found a mouse had chewed through the A/C clutch wires and even the backup camera wires (they didn't even know they had one lol) Let me know if there's anything else, hope this helps Johnny, Cheers!~ Bellarmine

[@saltwaterrook4638]

Can the ECV be taken off with the system pressurized?

[@ironmike742]

No

[@2nickles647]

No

[@asifhasan8287]

My corolla clutchless ac blows warm air at idle but above 1500rpm it blows cold air. Does it shows bad solinoid

[@verin941]

Could be low idle , low on refrigerant or the compressor is not pumping efficiently.

[@benstabenny2628]

You guys are the best🎉

[@dahighwayhitta1484]

It worked ty ty ty ty

[@Swenser]

So disconnecting the wires should stop the gas flow from closing up, right? and allow gas to flow to allow compression right? My standing pressure is 120 psi. Compressor clutch works and compressor seems to try to do its job. But low side drops by a few psi and vibrates very noticeably but sometimes not. . High side stays at 120 and vibrates sonetimes but not as much. Im thinking blockage rather than bad compressor. Perhaps control valve? What do you think?

[@TheTurbomopar]

did you figure it out?

[@Swenser]

@@TheTurbomopar Yes. My clutch clicked forward but rusted out in centre at centre bolt so it was not actually turning the compressor. Replaced clutch parts. All good now. Cost was about $125 us. Im in thailand.

[@hardcore4476]

Can I put oil or rust preventative on the the outside of the valve so it won’t rust while in the AC compressor? I seen the RKX ones rust that are sold on amazon reviews and that’s the one I bought.

[@ivanmiguel2977]

Genius!

[@CarlosPhilpot]

thanks, you are the best

[@TyronTyler-m8x]

cost to fix my ac compressor 2008 chevy equinox sport

[@mariuszskopinski9794]

Great video, thanks, I needed that 👍

[@badarmajeed]

I have impala 2015 LT, its ac starts throwing warm air if car stops on signal for long time. And after 5 mins it again starts cooling down. Also FAN keeps on mpving at high speed, shaks my whole car. Can you suggest something.

[@eflint1]

I had the same problem with my 2013 Impala

[@badarmajeed]

@@eflint1 issue fixed by resetting the ECM.

[@agusacmobil8412]

Mantap bang tengkyu

[@MrRohanstar]

2019 hyundai kona ,ac clutch kicks on for a few seconds but solenoid valve doesn't activate ,is it that the climate control is bad ,?

[@johnnysalazar1552]

I can't get power to compressor valve 2013 vw beetle bug wer does my power come from help

[@AlexKaratsioUSA]

Спасибо большое.!!

[@ivanvega2821]

Superb video. Thank you so much!

[@quicksilver2975]

How can I tell if my BMW AC compressor control valve has a diode? thanks! Great video as always so helpful!!!!

[@cliffgardner5717]

Can you take this solenoid out without evacuating the refrigerant?

[@NoraStewart-k1t]

No

[@g.angelov2494]

Браво.Може ли да се тества докато е на компресора?

[@Az56818]

2011 highlander new compressor expansion valve condenser charged to proper level using a professional robinair machine at idle compressor and fans come on a few seconds then stop. If u rev above 1000 rpm compressor and fans work ac works fine whether driving or sitting

[@autoclimates7900]

Thank you sir

[@stormbirdweather7047]

Thanks for all your videos. I have a problem with the AC on a 2005 BMW E87 116i. It didn’t work, so I got it serviced and refilled. It blew out the AC gas and the garage told me I have leak in the high pressure line. I changed it, not a funny job to do. Car was then serviced at BMW and I told them to do the AC as well. It worked for a few KM, then blew the AC gas again. BMW checked the system, and told me I need a new compressor. Cost 2000 € + for the complete job. Not going to happen. As the high pressure line was changed, the high pressure switch is new. So I bought a AC compressor solenoid switch, which you know, BMW does not sell or change. My question is this, is it possible to change the compressor switch while the compressor is in the car? Or do I need to take it out to do this job?

[@armandobroncas9147]

Compressor can still be on the car, as long as you can reach and able to work on it. Although freon must be discharged first

[@stormbirdweather7047]

@@armandobroncas9147 That was sort of my question. Is it possible to access and change the valve with the compressor in the car. Do it from the top or from under the car.

[@truthsmiles]

3:06 “what’s important is to not touch the two wires together because you’ll burn it immediately” Can you help me understand this comment? Do you just mean not touching the battery wires together? Or do you mean the terminals on the solenoid itself? If the solenoid, how does touching the wires together damage it?

[@4alvar]

Do not touching the battery wires together.

[@EmilAlexandru]

How do you repair a valve ?

[@hazemomar1156]

When i turn on my ac the car idls so high 1500 to 2000rpm What is the reason

[@ap.1939]

Mine works the opposite way. Without power no air escapes, but then I add power and air does escape?

[@MrJg17100]

Chevy equinox with this test is doing the same as you said. Backwards. Now not sure if this is the problem or if it’s normal…. What was your solution?

[@ap.1939]

In the end it was another part of my compressor that was faulty so had to get the whole thing replaced so not sure if the solenoid was a problem or not, sorry

[@MrJg17100]

@@ap.1939thanks for the response. Pricing out a replacement this week as well. Gonna sting a bit. Lol.

[@ap.1939]

Im in the UK and a certified second hand working one was only £30 and there were lots available so may not be as bad as you think

[@braulioromero9880]

OMG you made it so fucking easy to understand.

[@albertgallegos9938]

👍👍👍👍👍

[@tareka.d1345]

Dear, you are smart, but you speak very quickly.

[@yourworstfear]

to much blah blah blah!

[@marcoruiz4243]

He’s explaining this is the right info. If you’re in the automotive business it’s important to learn

[@rayhoughton8046]

It's ok if you can access the fucking thing

[@2nickles647]

It's easily accessible

[@gregmader6905]

Don't talk so damm fast... slow down a bit so we can understand u ...

[@eflint1]

You can adjust the playback speed on the video

[@eflint1]

You can adjust the playback speed on the video.

[@daddyush1726]

Thanks