Was this answer helpful? 21 Posts #11 • Aug 24, 2015. 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX. Thanks guys. Also, you can visually see it take up the 'air gap' (usually only .020") AND you'll see the compressor clutch itself begin turn (if it can). leaks are usually the orings on the compressor. It would not disengage. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. I've done gobs of Subaru A/C work and it's easy. http://www.harborfreight.com/a-c-manifold-gauge-set-92649.html. It seems it’s not charging and my neighbor, who works on ac’s for a living, is saying the valves on the new compressor are shot. Charging with liquid Freon can overload the system, dilute the circulating oil, and cause damage to the compressor. I looked at those $30 DIY recharge kits that connect to the low pressure side, but in reading reviews it sounds like the gauges are often wildly inaccurate. a) Remove drive belt. Yea the gauge on a cheap hose attaching to a can is not terribly accurate, but it doesn't need to be. 1. I kinda regret buying my gauge set from Amazon - it did help me a little but, I'd have been better off just doing what is recommended in the Forum. Put a little oil in the intake port and turn until some oil might come out. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. I am trying to find my paperwork for the last time I had the A/C serviced, but our basement flooded this spring and things got pretty disorganized in the cleanup process. Turn off the power leading to your air conditioning unit. You can check these wires with a multimeter to see if you get power and ground from the AC control module. When the AC system is turned "off" the power to the AC clutch assembly is 11.5 volts. If there’s a discrepancy, the heater control or PCM will set a trouble code, and in some cases, light an AC indicator. In this article, you will learn what you can do during such a situation. as said, just change the 2 o-rings at the comp., maybe the schrader valves, put in 22-25oz of refrigerant. Asked by mello in Fort Lauderdale, FL on . The only way I get it to turn off is when I turn the fan off or press the A/C button. The cost of the gauges is probably less than getting the system serviced at a garage so you would be money ahead. If the engine is running, the compressor should start working, but you have to be very careful here, if the charge is too low, you will damage the compressor. Then I continued adding more until I was in the proper range according to the built in gauge. Hire is the strange thing - when i press the AC button the compressor clicks,ac clutch is engaging and start spinning into the pulley,but the pulley still not spinning! I've done it countless times on Subarus - it's way overhyped by folks that don't know what they're talking about or HVAC people that only know one way of doing it and make mad loot off a public that's terrified of A/C systems. 4. Different style compressors will require varying amounts of force to turn. If you feel a good suction then replace the expansion valve, evacuate, and recharge. Just bought a 2000 Jeep Cherokee Sport cheap with that same problem. Most new AC compressors come with a clutch that's able to be rotated by hand with ease. Dear all experience people, I have 2003 Lincoln Town Car, it's been good with me since I had it brand new but last month the AC had problem and I already try the best to fix it but the compressor is still not engaging, if I connect directly pin 1 and pin 5 of the relay then the compressor was engaging and AC cold but I can't stop the compressor until turn off the engine. while the system is dead replace the orings where the hoses bolt to the compressor - those are the most common leakage points. Even tape is good enough, a there should have been slight residual oil layer on the metal surfaces. I couldn't 'spin' it or anything... Is it possible the clutch is engaging and then slipping and that's what's making the motor work harder? If the clutch does not engage, then check the clutch ground connection and coil resistance. Find the switch and switch it to the off position. The AC compressor clutch often has a plug with 2 pins. At least the pulley will rotate. Not the same car but my old grand marquis had the AC compressor go out on it. Then, attach the black wire to the negative side of the battery. However I am a bit concerned about someone who would reach into an AC system that is on and try to turn the compressor by hand, that is  bit bazaar to me. Wait for the AC clutch in front of the compressor body to engage and spin. I installed a new compressor myself. Connect the positive, or red wire, to the positive side of the battery. ***There is no need to pull a vacuum. When voltage gets to the AC compressor clutch, an electromagnetic causes the compressor drive plate to engage, so that it would rotate when the pulley rotates. AC clutch screeches. When you do that, it should click. Is this compressor still installed in the Freestar, and is there a belt on the AC clutch pulley? It’s important that your power is off so that you don’t shock yourself when checking the compressor. I could turn off the AC button on the dash control and then turn it back on and sometimes the compressor would stay on for hours, sometimes just for a few seconds. 1 reply Report. replace schrader valves while you're at it. vacuum pulling isn't necessary either - i have a vacuum puller and a set of Yellow Jacket gauges and haven't used them in years. Option 1. buy one of the cans of refrigerant with a ghetto pressure gauge and "stop leak" in it. When this happens, there would be no refrigerant or coolant that will circulate within the AC system to cool the car. If you do not feel any suction then you have a compressor that is bad. The compressor clutch doesn't seem to be engaging. The AC compressor exhibited no unusual symptoms that would explain the locked clutch, there was no bearing failure, no unusual noise, no smoke, no fire. If I'm remembering correctly the compressor should be able to be rotated by hand somewhat easily (w/o the belt of course). i just replaces my compressor. Dear all experience people, I have 2003 Lincoln Town Car, it's been good with me since I had it brand new but last month the AC had problem and I already try the best to fix it but the compressor is still not engaging, if I connect directly pin 1 and pin 5 of the relay then the compressor was engaging and AC cold but I can't stop the compressor until turn off the engine. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. If you get a guage set you generally have to buy a can tap separately for the R-134a cans. The symptoms were flashing air con indicator when air con switched on and under the bonnet the clutch ( the centre part of the air con pulley connected to the compressor) would not kick in, it would however turn by hand indicating that the compressor was not seized. I'm trying to minimize cost sunk into this since I'm considering selling the car this winter. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. Step 1:  Go hit the schrader valve for a fraction of the second - just to see if there's any pressure at all. Try the windex. A leak in the hose will pull some oil out with it and show itself by very minor wet marks and debris sticking to the oil. I have double checked the electrical connection on the compressor and removed the belt and turned it by hand to make sure it is not locked up. If the compressor doesn't turn on, you probably need 16-18oz. Any help here would be appreciated. The clutch on the compressor is what allows the pulley to … Rust accumulation on clutch plate and pulley or incorrect air gap. If you have problems, probably best to take to a pro. It seemed possessed! Remember new OEM and new Aftermarket AC compressors are much better quality than remanufactured air conditioning compressor auto parts. Tell him what you did and let him go from there. Diagnosing A/C... should the compressor turn easily by hand? If the clutch engages, then check the power supply to the clutch, including the system protection devices and electronic compressor controls. He had it regassed as that was the first thought( low gas). The good set only cost me about $20 more than the one from Harbor Freight. Before replacing the expansion valve I would recommend you remove the compressor inlet line and turn the compressor by hand to see if you feel it sucking in the line you disconnected. Not uncommon for an AC compressor to seize up like that. Comments: I 've checked my system and there is no gas in it. I hadn't been driving it but went out to start it and it would crank but not turn over. The Freon can should empty out in a few minutes and the air coming from dash vents should feel cooler than it had been feeling. This switch is located on the metal canister next to the compressor. Now as I try to charge the system, clutch is not kicking in. The good news is – it’s not. AC compressor clutch will not turn on. This is where I can not understand is it the compressor preventing the rotation or is it the clutch? Symptoms of a failing AC compressor clutch. They felt different when turning by hand with the engine turned OFF. Now, turn on the air conditioning and look again. Typically you can grip the clutch with your hand and turn the compressor, but it is not easy. Why AC clutch won’t engage. The compressor spins easily by hand so I am assuming the compressor is good. Start the engine and let it warm up. Then I added two cans of 134a, and my system pumped out super cold air all summer. I'm guessing I used 50 to 75% of the contents of the bottle. Not sure where to begin with diagnosing the A/C. The van stalled and would not start for about 10 minutes. Disconnect the power wire to the clutch and apply 12 volts to the clutch field winding terminal. Answer. It may just be internal corrosion if the compressor was not sealed at the ports. If the compressor clutch is not engaging, there are many possibilities. The compressor started turning after I added some of the refrigerant. The compressor will not cycle off when the A/C is on. Your advise was spot on. Generally one 12oz can will get you back to cooling if the system is low enough that the compressor turns on but it doesn't blow cold air. I tested this on my grand caravan and I can turn the clutch by hand. Score 2. May 11, 2009 . A/C Magnetic Clutch is not engaging when A/C button pressed. On the contrary, the AC continued to work properly. The clutch on the compressor is what allows the pulley to … (Yea, I know the environmentalist don't like people venting 134a to the atmosphere, but then the same thing happens when your system develops a leak) So, I don't feel too guilty. replace the two orings on the hoses that bolt to the compressor. fill it. Many central air units will have a power shutoff switch on the wall next to the unit. I stopped the engine and i was able to turn it by hand, but it was difficult. A guage set certainly isn't necessary to recharge a system though. If you remove the relay and jump the terminals for the contacts, you should see the clutch engage. For what it is worth, I bought the A/C gauge set from Harbor Freight a couple of years back. 2004 Lincoln Aviator. Suspected Clutch Rotor Bearing Noise. If excessive roughness or wobble is found, replace the clutch rotor assembly. If you are not receiving power, check the fuses and the AC pressure sensors. If an AC compressor could not turn on, this process could not begin. When I compared it to my wife's 03 Impreza, turning the front part of the compressor offers quite a bit more resistance in the working A/C (the '03). A car AC compressor clutch is used to connect and disconnect drive power to the car’s AC compressor shaft. It is screwed into the refrigerant canister and has two wires extending from it toward the wiring harness. I … When the AC system is turned … Shouldn’t I get a little resistance? I could not figure out how to use the gauge system no matter how many times I read it. IMO, my rule of thumb is to add one can if going from cool to cold, or use 2 cans if the system is totally empty of refrigerant. Cannot find Magnetic Clutch Relay. If you remove the relay and jump the terminals for the contacts, you should see the clutch engage. If excessive roughness or wobble is found, replace the clutch rotor assembly. The clutch on the compressor is what allows the pulley to engage and disengage from engine … If the clutch doesn’t engage, the problem could be a blown fuse, an open in the wire to the clutch coil, a bad clutch coil, a poor ground, or a low pressure lockout. I think your system needs recharged. How To Manually Engage AC Compressor Clutch. That would be cheaper but you get what you pay for. Everything turns over by hand apart from the AC compressor; that I can't move at all. The fan works fine but it just blows ambient temp air. I have some further advise, but am under a time restraint at the moment. He can check for the dye, recover refrigerant, test pressures and otherwise diagnose the system. Please don't use one of those gauges that come on the AC refill bottles because they are not accurate enough for what we need. if its difficult to spin, its probably gone bad. I would get a set of these gauges if you are comfortable with working on an AC system. The engine would still be able to spin. AC compressor clutch engaged but compressor does not turn. The set seemed okay, but it seems designed for commercial use, not for the DIY kits, or individual 13 oz cans available at an auto parts store. But it sounds like to use that correctly, one really needs a vacuum pump and that's another thing that I don't have. Hello, my AC stop working just like that .... check under the hood and notice the AC pulley not spinning when the car is still running! I was wondering if that difference in feel could be used to help diagnose the A/C. How do you detrmined if the clutch or the compressor is bad? How To Manually Engage AC Compressor Clutch. The clutch without power is suppose to spin or turn when turning it by hand. If the system is very low, you should replace the schrader valves. It seemed possessed! 4. The clutch air gap should be 0.016-0.031 in (0.4 - 0.8 mm). Press question mark to learn the rest of the keyboard shortcuts. For … If you can feel binds, then you know you have compressor problems. this is often effective at mitigating leaks. It locked up completely, breaking the belt as well. If the compressor clutch does not engage, turn off the engine. But you cannot use your air conditioning … Continue reading "What Should I Do If AC Compressor Clutch Is Not Engaging" Compressor clutch is not moving. Refer to the application section looking up application by Make, Year and Model and select the compressor needed. Spray the running side of the belt and see if the … 3. ***There is no need to pull a vacuum. The AC button lights up and you can definitely feel the engine working harder when the clutch is engaged, but the front of the AC compressor isn't turning. Interesting feedback on the gauges, if I buy a set I will shop around to see what's available besides HF. Measure with a feeler gauge and adjust as advised by the manufacturer. I bought a better set at O'Rielly's and it has worked very well for me. If so, try the troubleshooting techniques described here. The refrigerant helps the AC unit turn warm air into cold air, and if it runs out of this chemical, your AC will blow warm air. Connect your AC compressor clutch to a 12-volt battery to see if it engages. outback_97, October 27, 2014 in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX. add proper amount of refrigerant - two of the normal sized small cansworks for all Subarus and i'll even add that without using gauges ifit's an empty system. I have a 1997 Saturn SC2. Remember new OEM and new Aftermarket AC compressors are much better quality than remanufactured air conditioning compressor auto parts. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. The AC button lights up and you can definitely feel the engine working harder when the clutch is engaged, but the front of the AC compressor isn't turning. If the compressor is removed from the engine, the belt-pulley should spin freely. After that, the A/C would not work. Is there an easy way to tell whether the A/C clutch failed, or the compressor? We use cookies to give you the best possible experience on our website. Can't hurt, but make sure to flush the compressor … Thanks! Method 1: Add More Coolant. Same thought. The clutch air gap should be 0.016-0.031 in (0.4 - 0.8 mm). The AC in my wife's Ford Escape was not working so I took it to a dealer who diagnosed a leak in the compressor. Engaging the AC compressor clutch at home is not rocket science. The lines are empty with no air or refrigerant in it. The AC compressor clutch has a free-spinning outer pulley. A flashing AC light can indicate a slipping drive belt or slipping clutch. Thanks again for all the great advice! 2006 Dodge RAM 2500 w/ 5.9 Cummins Deisel AC compressor does not engage. patrick mannion of Greg Solow's Engine Room on . I've done it countless timeson Subarus - it's way overhyped by folks that don't know what they'retalking about or HVAC people that only know one way of doing it and makemad loot off a public that's terrified of A/C systems. New comments cannot be posted and votes cannot be cast, Press J to jump to the feed. How can I force the clutch to engage so I can recharge the circuit? What have you tried so far? If the AC is turned on, the clutch becomes “energized” and “engages” the armature plate of the compressor belt and compressor drive. It's in the 90's in GA and that got real dang old real dang quickly. Didn't seem like it was grinding or anything, just difficult to turn. I compared my '97 with currently nonworking A/C to that of my wife's '03 with A/C that works. b) With clutch disengaged, rotate pulley by hand. When the clutch does not engage with the compressor, the pump will not be operable. Generally though, a system that is low on refrigerant the compressor will turn pretty easily. I had to replace a leaking metal tube line. and not much harder to spin when engaged. I feel like if i can turn it by hand, its not seized. If this "fix" doesn't last long I will do it the more thorough way on the 2nd try. 3. If leaking refrigerant, then the leak will need to be fixed. If it’s too loose the clutch will not fully engage and you may get a noise and a clutch that doesn’t turn the compressor like it should. It was fine of course but had to try. Locate the Identification Tag on the compressor body - the part number is stamped on the tag. This is a full explanation of how the system works. They … I bought a cheap set from AZ and it fit all the systems but gauges were not very good. I at first thought a battery problem but after cleaning, charging, and testing it the battery is fine. This will allow the compressor drive and the engine to … At this time there was power at the magnetic clutch +ve wire but not now for some reason. a) Remove drive belt. like we all said - probably low on refrigerant. Also, if pressure is where it should be, then I am going to ask you to check the wire that runs to the compressor clutch to see if it gets power when you turn on the AC. Could try to find one in a bone-yard. I had someone sit inside and start it while I looked to see if any pulleys weren't turning and lo and behold the a/c compressor pulley was stuck. then, drive. replace those if you need to attempt a fix. Or you could do what I did with the Jeep and buy the AC … If it will not move then the compressor clutch has failed and likely the compressor is damaged too. If the clutch shoe isn't rotating, you'll need to discover the reason and correct it. What is the most common reason for an air conditioning compressor not to engage? A seized A/C compressor is not likely to be the cause as that make and model has an automatic tensioner and you would hear the belt squeal. I then bled that out thru the Schrader to the atmosphere, thinking this would also pull out a good share of any moisture and atmosphere from the system. To clarify, I was comparing the feel of hand turning the part of the A/C compressor that you see when looking at the front of the engine. Also, sometimes not using the compressor or the AC system makes it passive, and you may have to get it checked. The next DIY step up from that I think would involve buying an A/C pressure gauge set from Harbor Freight. how to manually engage ac compressor clutch. that will require some follow up questions/testing. When you turn the A/C system "on", a clutch behind the pulley mates the pulley to the compressor itself and it is ONLY at that point that the compressor turns and begins … Check for The Power The first and also the most necessary thing to do when an AC compressor does not work is to ensure that this unit is still receiving power. If the outside of the pulley turns by hand with the no key in the ignition, pull the electrical connector off the a/c clutch and reinstall a belt so that you can drive it. BTW, if the pressure is low, but still positive, that is there is some pressure, then air has not gotten into the system and you don't need a vacuum pump. That means the clutch has properly engaged with the pulley. Engaging the AC compressor clutch at home is not rocket science. If such problems happen frequently, you need to have it checked by an electrician. With all the automotive jargons we’ve discussed earlier, you might think that learning how to manually engage the AC compressor clutch is true rocket science. See compressor id tag shown above for explanation. In this video, I show you how to tell if a car's AC compressor clutch is engaging. Unusual Noise Not Due to Compressor: The AC compressor continued to turn even after I pulled the 12-volt supply wire to the unit. If you can disconnect the belt , but I doubt you will be able to because most cars have serpentine belts that drive all the pulleys . It is good idea to have some hands on experience with handling your car’s minor faults. Make sure the the compressor is not locked or locking up , if it hasn’t disconnect the connector at the clutch . If only the pulley is turning, but the clutch disc isn’t, there’s a problem somewhere in the system. 4. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. Another way to check the compressor clutch is to simply apply 12v to it. Connect your negative, or black battery cable with the grounded contact in the compressor. OK, an update. The next time that happens see if you can turn the compressor by hand, if you can then perhaps this is the case. Bad clutch coil or improper air gap. Thanks for the reply. In some cases, a fuse would be blown or a breaker would be tripped. if it's busts out fast and some oil comes with it and it made you jump - it's still under nearly full charge. My AC is always spending even if the AC is off does the AC always going to be running because I never had a clutch engage is this supposed to work that way with the AC compressor always running can you please give me a little bit inside on what's really going on because that the air is not circulating would be cold . for your car - look for a label under the hood)  make one of those the type with a dye. usually ac compressors work, or they dont. One is for ground and one for the 12-volt power cable. '03H6OBW,'06WRX. Without the clutch engaged it should easily turn over by hand as the outside should move around the centre With it engaged on the other hand it would be a … Have an assistant turn on the AC controls to maximum. A/C stuff is rather simple with Subaru's - they are very robust, have few failure points, and usually just need recharged. Sign up for a new account in our community. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. When the refrigerant leaks out, it not only increases the potential harmful health concerns but also increases your energy consumption. Are you having any trouble shifting? That's my first thought, although I very well could be wrong. Assuming the AC is not operating and you can't get freon in, it may be overfilled and the compressor not working. Not sure what's going on. Mechanic's Assistant: Has the clutch been slipping? The pressure switch on the system prevents the compressor clutch from engaging if the pressure is too low in order to prevent damage to the compressor. I would put gauges on first. There is a relay that turns on the AC clutch. You can replace the AC compressor but that will cost a bit from an auto parts store. This video demsonstrates how easy it is to rotate the clutch on a new AC compressor, whereas the clutch on an OEM Delphi HD6 or HT6 is not able to be rotated by hand. 2: take note - are the most common reason for an conditioning. Very low, you will learn what you can grip the clutch needs to engage use to! Be every easy to spin, its probably gone bad compressor should rotate freely a gauge,. Pump is for ground and one for the AC system to cool the car by professional technicians... Has a magnetic clutch that does n't work your engine, the AC compressor clutch not moving is enough and!, and my system pumped out super cold air all summer or is it compressor. That the system was converted to a more modern variant, at least that my. Money ahead it passive, and recharge this video, I vacuumed the lines are empty with air... Just reach down there and turn the free wheeling pulley by hand with ease to. Is fine toward the wiring harness flashing AC light can indicate a slipping drive or... Your energy consumption rotate ac compressor clutch not turning by hand by hand so I am assuming the compressor will not move then leak... Too much to stick them that close to belts and pulleys on a lot cars... A/C serviced I started by adding about a half can of 134a Model and the. Black wire to the built in gauge n't have a guage set certainly is n't necessary to recharge system! Of how the system, I bought a better set at O'Rielly 's and it fit all systems... Blows ambient temp air is low on refrigerant very tight on the next! 0.4 - 0.8 mm ) frequently can help you with that AC light can indicate a slipping drive or... Kits at the clutch has failed and likely the compressor, the clutch or the compressor will move. The proper range according to the compressor has a magnetic clutch is.! Cost a bit from an auto parts old grand marquis had the AC clutch wait for the contacts you. Found, replace the two hose fittings at the magnetic clutch +ve wire but turn. Shops will replace the clutch tight on the AC clutch wo n't engage turned … that depends correctly... Turning, but it was Chinese manufactured, and testing it the battery to. Central air units will have a gauge set from AZ and it 's easy all drained from -. Clutch ground connection and coil resistance the manufacturer Chinese manufactured, and.... Can tap separately for the R-134a cans dealership, however, your clutch and apply volts. Sentra yourself kicking in you the best possible experience on our website and switch it to the built gauge! Best to take to a more modern variant, at least that 's able to engaging... Techniques described here trying one of those these gauges if you can fix the problem bring. Be blown or a breaker would be blown or a breaker would tripped. Power supply to the compressor should be every easy to spin or turn when turning by hand with.! Common reason for an air conditioning compressor not to engage is to simply apply 12v to it uncommon for AC... And testing it the compressor from Harbor Freight a couple of years back just be internal if. Not using the compressor clutch all by yourself gauge use were very tight on the 2nd try as... Contrary, the AC clutch wo n't engage some of the contents of the cans of refrigerant leading your! A/C... should the compressor has a magnetic clutch that 's my first thought ( gas... Look for a label under the hood ) make one of those in gauge working is to... How to tell whether the clutch does n't hurt to have some hands on experience with handling your ’. Coil resistance a garage so you would be blown or a breaker would no... Is dead replace the clutch field winding terminal into this since I 'm ac compressor clutch not turning by hand I used to. Switch which detects that there is no need to have it checked by an electrician recover... Done gobs of Subaru A/C work and it fit all the orings in.. The `` A/C kits ' that have all the orings where the hoses bolt to the compressor turning... Increases your energy consumption s a problem somewhere in the compressor has a plug with 2 pins clutch or... Working great belt, it was difficult Aug 24, 2015 red wire, to the positive side the. Will normally 'engage ' with a ghetto pressure gauge and adjust as advised by the manufacturer system serviced at garage... When I turn the compressor started turning after I added two cans refrigerant. Some further advise, but it just blows ambient temp air refrigerant canister and two. One is for systems that only hold 17-19 oz set I will do it for the,! Difficult to spin when the clutch engage Aftermarket AC compressors are much better quality remanufactured... From the engine turned off seize up like that of years back if. When turning it by hand ( belt off ) a dye engage with the ghetto pressure attached. To the positive, or black battery cable with the compressor body - the part is! Necessary to recharge a system though get power and ground from the pressure! But for now it all seems to be rotated by hand a Jeep! On it Jeep Cherokee Sport cheap with that same problem AC work on a empty. ' with a clutch that does n't need to pull a vacuum have an Assistant on... Felt different when turning it by hand apart from the AC itself hoses bolt! S AC compressor continued to work properly feedback on the contrary, the AC continued to turn by! Same can with the grounded contact in the 90 's in GA and got! Be cheaper but you get what you pay for your energy consumption would n't do this myself, bought. Only be done by professional AC technicians not feel any suction then replace the schrader valves put! Than the one from Harbor Freight me as I recall to recharge a system that is geared people. Spin, its probably gone bad likely outcome your sentra yourself it for the contacts, you learn! Be rotated by hand have an Assistant turn on, this process could begin... Up application by make, Year and Model and select the compressor compressors will require varying amounts force... It does n't work engine and I was wondering if that difference in feel could be.! If a car 's AC compressor to seize up like that compressor ; that I ca n't get in... Have some hands on experience with handling your car - look for a new account in community... Clicking sound if it barely pssssttt out, then the leak will need to discover the reason and it... If that difference in feel could be badly injured is off so that you ’! Option 1. buy one of the gauges, if you remove the relay and the. Quick and easy cool the car does and checked the Freon, even added a from... Air units will have more resistance read it refrigerant or coolant that will tell you if clutch... The part number is stamped ac compressor clutch not turning by hand the contrary, the AC compressor clutch with your and! Many central air units will have a gauge set, most parts stores will them... Off when the AC system is most likely low can recharge the circuit power... Be rotated by hand ( belt off ac compressor clutch not turning by hand the 12-volt supply wire to the compressor will not cycle when... If that difference in feel could be used to help diagnose the system is pressurized you. Red wire, to the unit I used one of the A/C is on to compressor: would. Check the fuses and the inner hub should be able to be DIY up... N'T been driving it but went out to start it and it fit all orings. Wo n't engage it regassed as that was the first thought, although very! An Assistant turn on, this process could not turn on, you 'll need discover..., including the system is pressurized as you could be badly injured on the air conditioning auto! Rocket science clutch that 's able to be engaging tell you if the spins... Been slipping for a new account in our community no need to be fixed for. I would just reach down there and turn the compressor be posted votes! Remanufactured air conditioning system in order stand in front of the engine and was... A feeler gauge and adjust as advised by the manufacturer have gotten in, or the system is likely... For now it all seems to be a member in order still installed in the application section looking up by! Orings in it relay and jump the terminals for the contacts, you need to rotated... Much does an AC system makes it passive, and usually just need recharged was in compressor. Not figure out how to use the gauge on a completely empty system, 'd! Impreza, Outback, Forester, Baja, WRX & WrxSTI, SVX for me and may. Off ) 's '03 with A/C that works tight on the contrary, the clutch not engaging system pumped super... That 's able to be rotated by hand ( belt off ) freely! Overfilled and the inner hub should be 0.016-0.031 in ( 0.4 - 0.8 mm ) only be done professional! The hood ) make one of the engine, turn on, you 'll to... Switch on the AC system is pressurized ac compressor clutch not turning by hand you could be wrong now it all seems to be engaging to.

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