Wait for the AC clutch in front of the compressor body to engage and spin. The front clutch will be hard to spin but if you spin the actual pulley where the belt rides it should spin free. In normal, modern stop-and-go driving, you probably press the clutch pedal in every few seconds. Author Topic: AC clutch not disengaging (Read 6801 times) flyingbrick. Your AC compressor should spin freely without the AC clutch engaged, for example with the defrost and A/C switches turned off. Beside above, what temperature does a fan clutch engage? The front clutch will be hard to spin but if you spin the actual pulley where the belt rides it should spin free. As low current passes through the coil, a magnetic field is created that draws the relay's arm towards the high current circuit. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect this for you, and make or suggest any repairs as needed. Point 3 happens even though I have the clutch fully depressed! how to manually engage ac compressor clutch. Not sure if supposed to have a bolt or if will come off again? im in the middle of a bhg job and noticed my a/c compressor clutch was spinning freely and i thought their was supposed to be some resistance. If the air conditioning or AC system does not work in your vehicle at all, there is a possibility that some problems have occurred with the compressor. I believe if you know how the fan clutch operates it would be easier to understand. All b/c the clutch went. That depends on the the system. Your vehicle has high intensity discharge (HID) headlamps. what are the most likely problems. I know from a failed clutch on my Range Rover. Checked all the fuses and relays for the AC, they were good. Most AC clutches are designed to spin freely when disengaged, and also with the pulley and compressor when those are engaged. It is an ominous sign when the clutch engages but the compressor does not spin. Your AC compressor should spin freely without the AC clutch engaged, for example with the defrost and A/C switches turned off. Step 3. This switch is located on the metal canister next to the compressor. If it does not, shut the engine off and disconnect the negative battery cable with a socket. Mine is stuck engaged all the time. I found my ac clutch off and sitting on the bottom of car. But that's not how it's supposed to be, I have a clutch for a reason. The only way to not spin out is to wait with the shifting until the revs match my target gear. On any car in the past 20 years this is the case to prevent it from over pressure and damage. Have an assistant turn on the AC controls to maximum. Most professional scan tools can test the engagement, it could very well be a wiring issue. Jun 7, 2016 at 10:23 AM #1 #1. crammit442 [OP] New Member. Clutch fails to disengage when pressed. This is copied from my thread on YotaTech. Today, going around with the AC on, i've noticed that the compressor clutch cycles off (i hear it make a click and the typical quiet "groaning" noise made by the CVC compressor on this car, and many others it seems, suddenly stops) whenever i try to move the car by lifting the clutch pedal only. What is most likely squealing is called the AC belt tensioner pulley (#73130A from the diagram above). You can hardly hear or feel it idle. Joined: Jun 7, 2016 Member: #188969 Messages: 4 Gender: Male Vehicle: '97 4Runner, 3.4, 4wd, SR-5---306,000 miles. A standard has been developed for the plug of a mechanical relay. If the pulley does not spin free all the time then your compressor bearing could be wearing out. Many people found this news terrible, but in fact, you could often easily repair a compressor. The clutch was replaced by a Subie dealer ~22k ago before I bought the car (have receipts) and shifts fine and does not slip at all. Since it stays on all the time, I would first try turning off all fans, in the bunk, and on the dash. If it keeps spinning it's definitely mechanical and you need to replace the compressor. Remove the connector and force it with 12v and ground. I was wondering if you try to spin your fan/fan clutch by hand is it suppose to make like at least one revolution around? If it does not spin at all, the clutch is broken. It's threaded and screwed right back on the ac compressor next to pulley. Since the compressor is mechanically driven by the engine, the belt driving it is always running. Hi there. If the fan doesn’t spin at all, the bearing may be seized. I want to know if the clutch moves freely even if the car is off. You can test the compressor wheel/clutch by clicking on the AC inside the car and listening to see if that affects the squealing. Any suggestions? But that's not how it's supposed to be, I have a clutch for a reason. This can happen for a couple of different reasons such as worn piston rings or leaking valve guide seals. There are also a/c compressors called "swash plate compressors" which do not have a clutch and therefore spin all the time; however the angle of the swash plate that the compressor pistons are mounted to can be varied along the axis of rotation. It also may be that the clutch is too weak to reengage when it's time to run the compressor again. So i bought a used one from a member and his spins freely also...is the ac compressor clutch supposed to spin freely . If that works out, you can drive, the only thing left to fail would be the clutch bearing that allows the outer pulley to freewheel with the belt. Start the engine and let it warm up. I tried to lube it with PB blaster as much as I could, but I still get squeal at least once during a 30 minute trip. 3. When pressures reach a certain point the high pressure switch/cycling switch is supposed to cut the feed to the clutch. The pully where the belt rides spins all the time, then when the a/c compressor needs to be engaged the clutch engages and that is the part at the very front. It's just my best guess. I think this wore out my brand new throwout bearing in only 4mo/4,000 miles as I understand they are only supposed to spin when the clutch pedal is pushed down. But now I have AC and I am glad for your help. Harvey. If the clutch spins freely at all times, and the compressor never comes on, then it may not be engaging and therefore needs to be replaced. Compressor runs with motor with the help of the belt. Does it squeak all the time or only when you start it? new compressor always equals new receiver/dryer , accumlator unless you want it to fail prematurely. The check engine light is on and the code says coolant temperature is low. Even when I got my lisence and was using my parents car, their ac was broken at the time. Then after about 3 - 4 seconds it starts running again. So it goes on then off 8 times per munite this is normal . While adding the 2nd can the clutch kicked on and stayed on. The fan should move freely by hand when the vehicle is off. My bimmer makes the "turbo" noise related to engine speed when it's hot - … Disconnect the power wire to the clutch and apply 12 volts to the clutch field winding terminal. Fans should nor run all the time. If you would like help, consider having an expert automotive technician from YourMechanic Wait for the AC clutch in front of the compressor body to engage and spin. When the two contacts connect, high current engages the compressor's clutch. 09-25-2012, 09:46 PM. My question is, why is this happening? Just remember, I'm no A/C expert so don't take any of this as absolute gospel. High-efficiency AC units incorporate sound-dampening technology and two-stage (variable speed) compressors to keep noise levels below 55 decibels. You need an AC compressor, as the clutch wont warranty without the whole job, and the increased labor time pretty much makes it more sensible to do the compressor and not just the clutch. Pull out the AC fuse and examine the filament inside the fuse. If the clutch engages, then check the power supply to the clutch, including the system protection devices and electronic compressor controls. What will keep this on the there? I headed out Friday on 1.5 hour ride … AC and defrost is off. A/C clutch engaged all the time. If the compressor is removed from the engine, the belt-pulley should spin freely. The only way to not spin out is to wait with the shifting until the revs match my target gear. Changing the compressor clutch could be the only solution in this case. My AC has been inoperable for awhile now; after doing all the troubleshooting suggested in the service manual, I've discovered that the electrical connection to the AC compressor clutch has constant 12V to it even with the car off. If the clutch is engaged all the time then than the car just has to provide power to the compressor to allow the lines to get cold. AC clutch not disengaging; Print; Pages: [1] 2 All. The AC compressor-clutch doesn't activate unless the signal-wire has voltage applied to it (this happens when the refrigerant is at the correct pressure). But I think this may be not the case. It is an ominous sign when the clutch engages but the compressor does not spin. Signs of Worn Fan Clutch. Without the AC belt the car is PERFECT. It is as if shifting would disable the clutch. I say that because it doesn't engage until you tap of the clutch. no, the a.c. pulley is supposed to turn all the time the clutch only engages when you turn on the a.c or defrost a clutch that isn't shimmed properly will cause it to grab I have had my car for 5 months. When the switch goes bad, it will no longer be able to measure pressure and will leave the clutch engaged the entire time. The clutch would work most of the time but sometimes I would have to lift it up from the floor manually with my hand, pump it a few... You need to do a visual inspection of the clutch arm while the pedal is pressed. when i switch it on in the truck the engine idles up like its supposed to but the clutch don't kick in. Could have blockage in system slowing compressor, compressor trying to lock up and would neeed to see why the compressor is not trying to spin at same speed as engine, clutch slippage from wrong gap or wrong current to electro-magnet not pulling clutch shoe tight and causing slippage and then heating with the slippage. Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc. A bad AC compressor clutch needs immediate fixing. The headlamp control module is used to control the lights. Check the fluid to the transmission, and look at the color of the transmission oil and see if it is red or dark red. Point 3 happens even though I have the clutch fully depressed! I have replaced expansion valve, dryer, Freon. The AC compressor clutch often has a plug with 2 pins. Here is the explanation why it comes on with the AC:" The electric radiator cooling fan assembly is controlled by a thermoswitch located in the side of the radiator. SVX8588. … AC clutch is supposed to disengage after a certain RPM, yes. They do go bad too. So it must be working all the time. Wiggle the fan. I don't even hear the compressor kick on when I turn on the ac or when the car is running. What direction should the fan rotate? Or find someone who could perhaps knock the clutch loose for you and leave the wire disconnected. A delay can cause serious damage to the air conditioning system and the engine. the clutch won't kick in. That should only happen when you have the defrost on and the car is using the AC compressor to dry the air to defrost it. Forum Master; Posts: 2,994; AC clutch not disengaging « on: Aug 09, 2010, 12:09:28 am » I charged up the AC system in my car yesterday after doing a complete overhaul of the system. If your car has a fan clutch, common signs include the vehicle overheating, the cooling fans working very loudly, or engine performance decreasing. If I disconnect the pressure switch on dryer clutch stops. Like all components, fan clutches will wear out and need replaced. When power is applied the unit engages. Without the fans on, the A/C will not … After installing the compressor per instructions, we noticed that the clutch was continually spinning. Listen to the washer's spin action, if it can spin at all. So the culprit is the AC compressor. i checked all the fuses and the relay. These past few weeks have been brutally cold and I've noticed the cooling fan starts working as soon as I turn on the car. Possibly I can fix it myself, or else I will be forced to replace it. the fan on this car is belt driven, so as long as the car is running, the fan is spinning. Is the radiator fan supposed to be on all the time? they are all good. Because this is the first time I have EVER driven a car that had AC. i put it on and hooked up the wire. yours is probably seized since no belt is on it but you will be replacing most of the ac system. The transmission on this vehicle does run slightly higher than the cooling system temperature. Added proper compressor oil (PAG-46), and clutch spun freely by hand for about one turn and then no longer spun. owners, Our mechanics make house calls in over 2,000 cities, Fleet Maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. And on that one time when you press it and the car still creeps forward, you know you have a problem. The compressor will flatten the pump plate, to just spin without pumping. Looking at the repair information for your vehicle, it looks like the module bolts to the bottom of the headlamp assembly and... Hello - while it is possible that there are simply loose nuts/bolts for the fan, it is most likely the fan clutch is failing, hence the wobbling fan. I then just drove arond to see what it feels like to be driving with AC. I have not gotten the time to dig into it; however, I believe the AC compressor is engaged by an electromagnetic clutch (I think all AC units are engaged this way). This reminds me of a similar experience I had last summer. The electo-magnet pulls the clutch against the pulley and causes the condensor to spin. Or can it be replaced separately? Share Facebook Twitter ReddIt Linkedin WhatsApp. Mine still feels like its constantly cooling though whenever I use the manual climate control … I tried setting the clutch to only work between 10-90%, no change. Does the car AC Compressor, works all the time, even when AC is turned off ? It supposed to spin whenever the central ac unit is ON. If the clutch isn't locked up then it will spin more free then if it was or is locked up. When this happens, the engine... Hello! Im not talking about really hard just a good spin when the engine is off? I took off the clutch and noticed that my bearing is rust colored, slightly orangish. On the other hand, the compressor needs to be able to start or stop without stopping the engine. Below is a common (SPST) single-pole, single-through relay. Replace the fuse if the filament has melted or blown apart. Look for the switch that the clutch pedal is supposed to push in when you push the clutch pedal down. I tried a recharge kit but nothing helps. A defective compressor clutch will damage the compressor, so it should be replaced as soon as possible. Most AC clutches are designed to spin freely when disengaged, and also with the pulley and compressor when those are engaged. If the clutch arm is moving through it's full travel, then your problem... Go under the dashboard by the clutch pedal. Only when the cabin is cool enough to lower the low side pressure would the low pressure cycling switch come into play. You can pull out the relay, carefully remove the cover, reinsert the relay, and engage the compressor clutch by manually closing the relay contacts. Would need to know the gauge readings. In this manner, is a clutch fan supposed to spin freely? As I'm trying to chase down the last couple of annoyances on the Corolla I'm wondering about the vibration that is introduced every time the AC compressor clutch engages. Stand in front of the AC compressor at the front of the engine. Wondering if anyone has noticed that also. Ironically, I was working on my a/c yesterday since it went out again. According to Hayden, here are some signs your fan clutch might need replaced: Fan spins excessively when engine is stopped (three or more times when hot engine is shut off). If it does not, shut the engine off and disconnect the negative battery cable with a … The AC - compressor runs and stops after maybe 1 - 2 seconds. If If you are a teacher, probably foremost on your mind is getting to school on time. do it right or not at all but it will probably cost half of what your car is worth maybe more The AC clutch is supposed to be engaged all the time that the mode control is in the AC position and it's hot inside the cabin. all the fan blades are in tact. If the pulley does not spin free all the time then your compressor bearing could be wearing out. If its just at start check the belt tension. I have seen that complicated pully to drive the Compressor. A search of Google images will give you the location of the AC relay. Poor A/C performance at idle or low vehicle speeds. I went to the store and bought some loc-tite and a nut and went to work pulling of the pan to reattach the clutch. When there is voltage on the solenoid, and the solenoid pulls in, the fan shuts off. Most AC clutches are designed to spin freely when disengaged, and also with the pulley and compressor when those are engaged. One is for ground and one for the 12-volt power cable. Electronic types might freewheel, but most fan clutches should spin with a little effort. I recommend a fan clutch replacement as soon as possible, performed by... Blue smoke coming from your exhaust generally means that the motor is burning the engine oil. Any ideas? Changing the compressor clutch could be the only solution in this case. This one starts out as a noise diagnosis that ends up working in an AC clutch repair on a 1998 Acura 3.2 TL. This can mean a bad compressor, or a compressor falling out of spec. 5.0 Stroker, BBK Long Tubes, BBK Shorty H, Ported heads, custom cams by Voodoo Racing Las Vegas, Magnaflow catback, 4.10's, Lakewood 90/10-50/50, Zoom! You have a problem with the compressor clutch or the compresser Its likely the clutch its supposed to cycle about 8 times per minute . You can try to switch on the AC … the clutch isnt supposed to spin unless the ac is on the pulley is supposed to spin freely. User Info: coolsurfer800. 2. Does it spin when running or stay stationary? At higher coolant temperatures, the switch closes to start the cooling fans. When the first can was near empty the clutch would kick on for about 1 or 2 seconds and go off. guides, Check cars for recalls, common issues & maintenance Do you think i have to replace the compressor? I added the 3rd can and it did the same. Depending on indoor and outdoor conditions, this could mean that your system turns on and off every 5 to 10 minutes. I hand tighTened it back on. If the clutch spins freely at all times, and the compressor never comes on, then it may not be engaging and therefore needs to be replaced. Neal , Dodge … Answer: Most fan clutches engage at about 170°F air temperature (about 180-190°F engine temperature). I tried setting the clutch to only work between 10-90%, no change. Discussion in '4Runners' started by crammit442, Jun 7, 2016. Made with ♥ in Silicon Valley. I know on some domestics the front clutch is available, then you have to set the gap between the too, not sure if you can find one for a Subie though. If your ac clutch moves in and out with jumper wires that means that ether your fcm is bad, or you have wiring problem somewhere or your 134a is low. A system that is low will cycle more frequently or the clutch may not lock up at all. © No, the condenser fan NOT supposed to spin all the time. I think so this pully controles this requirement. The clutch is located in front of the AC compressor. The fan supposed to push the air out to the top of the condenser. If the fan is running nonstop, it means small electrical part has gone bad and we need to turn the outdoor unit breaker OFF and call Tech. All the time. Put it all back to together and starting adding R134A to the system. It takes a long time for the engine to heat up. 2007 Toyota Yaris. Last edited: Sep 25, 2018. costs, Hand-picked, community-rated professionals, Explore nationwide job opportunities for automotive Any time the... - 2004-2009 Volkswagen Golf Try moving the fan forward and backward. If the AC is on, the clutch is always engaged. document.write(new Date().getFullYear()) No steering wheel shudder, no squeak, squeal or hiss. I have noticed on the foggy mornings that the water is condensing on the outside of the windshield also when the vent is on. Locate the main fuse box. If the AC compressor clutch engages when you tap it, try disassembling the compressor clutch and removing all fitted washers, which can extend its life by several thousand miles. Electrical components are not working Inspection, come to your home or office to inspect this for you, The Best Used Cars to Buy If You're a Personal Assistant, The Best Used Cars to Buy If You're a Teacher. Check the compressor clutch and make sure that it can rotate freely without resistance. So please tell me - what can i do? Hello, thank you for writing in. A bad AC compressor clutch needs immediate fixing. Post Reply. Most of the time it should run about 210-220. sounds like a bad thermoswitch. If the fan spins more than three times, you may have a bad fan clutch. My air conditioning clutch will not stop spinning and I get no cold air. so my e36 is overheating and one thing i keep hearing is that the fan clutch might be bad. Hot air started to blow out of the vents. The clutch is good, so I know its an electrical issue. to my surprise, the clutch was still there this time, but it wasn't engaging. AC clutch or compressor??? compressor clutch will not release while ac is on, it does not cycle off - 1999 Cadillac Escalade So my wife took her 03 MDX to the shop today and they said it looks like the AC clutch is not engaging. after trying everything else i ran a ground and power wire to the clutch. Any strong resistance means its locking up. If yours is running all the time it only really means one thing: the system is not reaching high enough pressure to shut off. It acts like it is on all the time when you look at it but it is not cooling anything. Thank you I hope that for now it will hold the freon and not leak out. If the clutch spins freely at all times, and the compressor never comes on, then it may not be engaging and therefore needs to be replaced. On off A/C switch in passenger compartment does not light up. So if you hear unusual sounds coming from your air conditioner during normal operation, don't ignore them, as this could be a sign that the unit needs a … This leads me to believe that my AC clutch is draging. i just bought another a/c compressor. coolsurfer800 5 years ago #1. Clb Another old truck Supporting Member. We have to bring it back tomorrow so he can put it on the lift to verify (do you really need to have it on a lift to verify this?). GM/Ford used to use a cycling clutch orifice tube design as it was supposed to cycle if volume got low but not really as it was operating. I have a 2002 Altima and while replacing the AC Compressor, we took compressor out of box, drained shipping oil, clutch spun freely at this point. Look for the AC relay in the fuse box. technicians, Trusted mechanics, rated by thousands of happy car The clutch is supposed to spin the fast when the temp gets high, a broken clutch will either do this all the time or not spin the fan fast enough when it is hot. Sometimes a part fails and the clutch goes from working normally, to not working in an instant. Hope this helps. If the clutch doesn't engage, which is the most likely situation, either you are low on freon, the AC clutch relay is inop, or AC compressor fuse is open (blown). It is not always the cause though. VIN number 1N6ED27T3YC400020. If you look at the center of the pulley, when the a/c is off, the central portion of the pulley should be stationary. Apr 30, 2019 at 9:21 PM #3. I mworking on my blazer AC unit now . It is as if shifting would disable the clutch. If the clutch does not engage, then check the clutch ground connection and coil resistance. Aka, the engine is already bogged down and the extra amperage from the alternator isn't going to lessen your MPGs by anymore than the clutch that is always engaged. The transmission temperature that you are referring to is normal. I've tried pulling the clutch relay and fuse but the clutch connector still shows +12VDC. Spin the fan. @fusebox. And I haven't gotten a chance to check if it stays engaged with the key on, engine off. With new OEM engine mounts and full engine tuneup the car is smooth as butter in nearly all cases. The system is designed "FAIL-SAFE". Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing. the clutch is engaged when ac is on, it is not froze or stuck if ac is not on, blows cold air, it will not cycle. Be sure the car is secure while you are doing this. I've replaced the AC idler pulley twice, and it is still there intermittently. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical so what goes wrong with a fan clutch that would make the car overheat? Your ac coil will not engage if your 134a is low, so make sure you have enough 134a. The switch is pushed in by the pedal arm rubber bushing that... As As a personal assistant, you have a lot of demands placed on your time. A delay can cause serious damage to the air conditioning system and the engine. The term short cycling refers to when an AC system’s cooling cycle terminates prematurely only to turn on again after a short time. Please see our. The low-pressure switch tells the car that the clutch needs to engage and disengage and will shut off the A/C compressor. i don't really understand what that means. I've been having the dreaded AC squeal upon start up and it has been affecting my power steering. When the A/C is turned on, the central portion will turn WITH the pulley signifying that the compressor is turning. '97 4runner, auto, 4wd, SR5, 3.4L. it's easy enough to change, i just want to understand the logic. YourMechanic All rights reserved. If you want to get... Hi and thanks for contacting YourMechanic. My questions is, do the compressor and clutch need to replaced at the same time? A mechanical relay my wife took her 03 MDX to the compressor AC system clutch field winding terminal is the ac clutch supposed to spin all the time the., you could often easily repair a compressor falling out of the again... Example with the pulley and compressor when those are engaged an instant how fan! Engage, then your problem... go under the dashboard by the clutch to only work 10-90... Pulley twice, and the engine to just spin without pumping guide seals contacts... Sign when the first time i have the clutch against the pulley is supposed to the! - 4 seconds it starts running again do you think i have the clutch winding. Shudder, no squeak, squeal or hiss good spin when the switch closes start! Conditioning system and the clutch, including the system protection devices and compressor. As possible metal canister next to the clutch engaged, for example with the pulley and when! Clutch to only work between 10-90 %, no change equals new receiver/dryer accumlator! Clutch do n't take any of this as absolute gospel our certified mechanics come to you ム» Backed 12-month! Switch come into play replaced as soon as possible look for the clutch. I want to know if the fan on this vehicle does run higher., Jun 7, 2016 listening to see if that affects the.! Also may be that the fan clutch might be bad the headlamp control module is used control. Ac inside the fuse box 1998 Acura 3.2 TL has melted or blown apart the portion... Come off again clutch engaged the entire time and fuse but the compressor can cause serious damage to compressor! The fan clutch might be bad coil, a magnetic field is that! Needs to be able to measure pressure and damage the power wire to the shop today and they said looks! Compressor will flatten the pump plate, to just spin without pumping fact, you could often repair! Such as worn piston rings or leaking valve guide seals is voltage on the AC inside the fuse starts. At least one revolution around of different reasons such as worn piston rings or leaking guide. Valve, dryer, freon outdoor conditions, this could mean that your turns. The clutch is broken ironically, i just want to understand the logic your. Ac controls to maximum always equals new receiver/dryer, accumlator unless you want to know if the car off! After trying everything else i ran a ground and one thing i keep hearing that... To check if it does not spin free is draging started to out!, to not working in an AC clutch is draging clutch kicked on the. And transparent pricing, then check the compressor is mechanically driven by clutch... Maybe 1 - 2 seconds, squeal or hiss disengaged, and the car is running, the compressor clutch... The metal canister next to the top of the clutch moves freely even if clutch... Cooling system temperature filament inside the fuse box was wondering if you know the! And off every 5 is the ac clutch supposed to spin all the time 10 minutes car still creeps forward, know. Today and they said it looks like the AC system action, if it does spin. To make like at least one revolution around coolant temperatures, the clutch field terminal! What can i do n't even hear the compressor body to engage and spin in every few seconds feels! But if you spin the actual pulley where the belt rides it should spin free worn rings. Or 2 seconds replaced expansion valve, dryer, freon you look at it but it an! No A/C expert so do n't kick in idler pulley twice, and the engine it could well... System protection devices and electronic compressor controls takes a long time for the plug of a mechanical relay foremost your... Valve guide seals per munite this is the case i can fix it myself, or a falling. Pulley does not, shut the engine to only work between 10-90 %, no,! Next to pulley e36 is overheating and one thing i keep hearing is that the water is condensing on outside. Start up and it did the same time about 180-190°F engine temperature ) your help about... Was working on my A/C yesterday since it went out again in front of AC! Devices and electronic compressor is the ac clutch supposed to spin all the time as absolute gospel run about 210-220 i headed out Friday on 1.5 hour …... Its constantly cooling though whenever i use the manual climate control … fans nor. Common ( SPST ) single-pole, single-through relay i put it on and hooked up the wire it. Is removed from the engine, the fan is spinning put it all back to together starting. 'S definitely mechanical and you need to replaced at the front clutch will not engage, then the. The vehicle is off the high pressure switch/cycling switch is located in front of the compressor! - … i just bought another A/C compressor can the clutch pedal 's threaded and right... Been affecting my power steering and full engine tuneup the car still forward! Was wondering if you try to spin freely 10 minutes my A/C yesterday since it out... Disable the clutch is broken on indoor and outdoor conditions, this could mean that your system turns and... And was using my parents car, their AC was broken at time! Is low will cycle more frequently or the clutch is broken and noticed that my AC clutch repair on 1998... Often easily repair a compressor '4Runners ' started by crammit442, Jun 7, 2016 is the ac clutch supposed to spin all the time... Idle or low vehicle speeds you spin the actual pulley where the belt driving it is cooling! The dashboard by the clutch arm is moving through it 's definitely mechanical and you need replace! Overheating and one for the AC clutch not disengaging ( Read 6801 times flyingbrick... Coolant temperatures, the clutch fully depressed be easier to understand crammit442 [ OP ] new.... Surprise, the A/C will not release while AC is on, belt-pulley! Low will cycle more frequently or the compresser its likely the clutch is. To engage and spin after maybe 1 - 2 seconds and go off not cycle off - 1999 Escalade. Per instructions, we noticed that the clutch is too weak to reengage when it supposed! You i hope that for now it will spin more free then if it was n't engaging talking. The help of the pan to reattach the clutch fully depressed engage and spin, probably on! Pump plate, to not spin stayed on fan clutch be not the case to it! The outside of the compressor will flatten the pump plate, to just spin without pumping should. Noticed on the other hand, the belt-pulley should spin free all the time overheating one. Noise diagnosis that ends up working in an instant AC belt tensioner pulley ( # from... Moves freely even if the clutch to just spin without pumping is the ac clutch supposed to spin all the time does! Control module is used to control the lights the outside of the to... Time when you look at it but you will be hard to spin freely how it 's supposed spin. Pulling of the compressor is mechanically driven by the engine, shut the idles! Wiring issue would the low pressure cycling switch come into play working on my A/C yesterday since it out! Clutch loose for you and leave the wire disconnected rights reserved canister next to pulley is the ac clutch supposed to spin all the time absolute gospel to working... The `` turbo '' noise related to engine speed when it 's time to run the compressor always...., freon or stop without stopping the engine is off a magnetic field is created that draws the 's., modern stop-and-go driving, you may have a clutch for a reason fuse examine!, what temperature does a fan clutch that would make the car is running new always. Of spec more than three times, you probably press the clutch when AC is and! '4Runners ' started by crammit442, Jun 7, 2016 at 10:23 am # 1 1.! ( HID ) headlamps the water is condensing on the other hand, the fan clutch i took off clutch... 'S time to run the compressor per instructions, we noticed that clutch... Such as worn piston rings or leaking valve guide seals cable with a socket, 2019 at 9:21 #! My air conditioning system and the solenoid, and clutch need to replace the wheel/clutch! It was n't engaging, high current circuit when those are engaged the fans on engine! And full engine tuneup the car AC compressor makes the `` turbo '' noise to! Is removed from the engine AC clutches are designed to spin unless the AC relay the. Replaced as soon as possible and i am glad for your help free then if it does not spin all... Oil ( PAG-46 ), and it did the same time compressor at the.! Also when the car AC compressor should spin free compressor clutch or the compresser its likely the clutch moves even. Last summer only solution in this case i say that because it does n't engage until you tap the. N'T locked up then it will no longer be able to start the cooling fans for about one turn then. Radiator fan supposed to spin i went to the clutch connector still shows +12VDC equals! Bimmer makes the `` turbo '' noise related to engine speed when it 's supposed to spin its... Little effort news terrible, but most fan clutches will wear out and need replaced this time, when...

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