Ac Compressor Pulley Not Spinning

Thanks Jake. The front clutch will be hard to spin but if you spin the actual pulley where the belt rides it should spin free. At least I narrowed it down to the A/C. camosilver on Sun March 01, 2009 11:06 AM. Your not going to hurt the system anymore at that point. Not sure if it clearly visible on this car (I haven't looked) but you should physically be able to see the coil pull the clutch in. I had the compressor not turning fault on mine, the pulley has no clutch on it like normal aircon compressors and runs all the time with a valve in the rear of the compressor controlling the output, the pulley has a rubber drive in it thats designed to shear if the compressor stops for any reason while running to prevent the belt breaking, now. Checked the tension and it's fine, so I think it's either a tensioner that's seizing, a compressor that's seizing, or a compressor clutch that's slipping. I turned it on high thinking maybe the light is burnt out, but nothing checked the compressor to see if maybe spinning regardless of the light and nope. When turning on your AC or Defroster, you may find a loud squeal or smoke from your AC Compressor Clutch and/or fan belt which may indicate a frozen AC Compressor not allowing the pulley to spin when the clutch is engaged. Then look at the front of the compressor clutch. A friend had a replace AC compressor from same make/model. Dealer could not find leak and suspected that the condenser was leaking. My experience with AC systems (having done evacuation and fill on older r12 systems) tells me the outer part should spin when the clutch is engaged. Have the engine running and AC on, unplug the connector, and bridge the contacts on the plug itself with a piece of wire used as a jumper (even a paper clip will do). ac compressor pulley won't turn when i turn the a/c on, the compressor pulley (or whatever it's called) is wanting to turn but it's just not turning. Something diabolical was happening to the clutch on my air conditioner compressor. So I tried swapping my idler pulley yesterday and. Your compressor may be damaged and not working properly. It certainly will keep the compressor from coming on but the pulley is still spinning. car is drive 3k/year. While this may seem like a death sentence—especially in the height of summer—replacing AC compressors isn't the most complicated task. Here are some of the more common types and causes of A/C compressor noise. You likely have a low charge. So, your compressor. A compressor serves as the heart of an air conditioning system. as soon as you insert the paper clip, the compressor clutch should engage. " The compressor clutch is a large electromagnet that, when energized, draws the clutch plate into the clutch pulley. Any help would be greatly appreciated. Unleash that lost horsepower and clean up the look of your race car's engine bay with this high-performance, great-looking A/C Compressor Delete Kit from Ford Racing and AmericanMuscle. Clutch is not spinning. So i had a friend of mine look at the car and i thought the compressor was turning on because i would see the rpm change when i turned the ac on even thought there was no cold air. is the problem in the clutch coil or low pressure switch or else ? when i check the low side is too hi about 60 and high side is 130 this means that system not empty and problem is why the low side is too hi ? when i turn on the ac the. An AC pulley is disconnected from the compressor when the clutch is deenergized, so it’ll spin freely. I pulled the AC Compressor out and both the bearing and compressor shaft seem to rotate with no seizing. 1) Raise vehicle on ramps & remove plastic shroud underneath AC compressor. If the pulley bearing is causing the clunk when you spin the pulley with the belt removed then the bearing can be replaced. i do know the difference. You will need to ensure the air conditioner compressor is working to determine the correct course of action to make repairs if necessary. Investigation shows low side pressure high (No high side gauges) and when the car is on, the ac pulley is spinning. (but nothing im not used to) New ac compressor cost-$500, rebuilt one-$350+. It started by not cooling under 1. If certain pre-programmed values for pressure are not meant then the A/C compressor clutch will not be energized and the A/C compressor pulley will just be free spinning. Now turn on the AC and compressor should run. If the compressor got hot enough to make the shaft seal leak (or if it was leaking all along) you might consider replacing the whole unit. The pulley will, of course be spinning, but the circular assembly mounted to the front of the pulley will spin with the pulley only when the compressor is engaged. Your alternator is being driven by this "looser" side of the belt, so even though the alternator is spinning, you probably do have some slippage around the alternator pulley when the compressor is running. 025) of an inch is needed between the coil and the pulley cover for the compressor to operate but if you match the spacer with the old it should be. When the AC compressor goes bad in a vehicle, a consumer often will choose to install an AC bypass pulley. I pulled the belt off and gave each a spin. The AC compressor was stalling in an irregular way, causing the belt to drag. To determine the input or output speed or the pulley and cog sizes needed in a drive you may use a simple ratio. Belts too tight. the AC clutch is engaged). Occasional spinning of the inner hub assembly – but lots of squeal With AC on… no noise/squeal at all – and lots of cold. I thought it was the ac expansion valve so changed that out and charged system with freon and still no cold air. More like a spot in the spin that needs additional force to spin through. My two thoughts are air gap or low pressure even though I've pumped it full according to my ac pro gauge. You'll know right away if the compressor is locked up because the pulley won't spin and the belt will make a horrendous noise slipping across it. Once they are touching, however, friction between the two plates makes the air conditioner rotor spin. It has four parts: the A/C compressor clutch hub, pulley, bearing, and the coil. The pulley on that one spins almost as freely as the idler pulley--therefore by comparrison, it seems the A/C pulley on my vehicle is not spinning and I suspect it would be caused by the bearings. Two different approaches if yes or no. I took of the AC belt and the noise stopped. If your engine uses newer serpentine belts, you must somehow rig up a v-belt pulley to power the compressor's v-belt pulley. 02 H6 subi - When I turn the A/C on the car does nothing different than if jsut the fan is blowing, that is the engine does NOT bog down aka the compressor and blower do not seem to engage, no lag on the motor. mk378 on Sat August 07, 2010 8:40 AM. AC Compressor pulley spins and then freezes up, belt still slides through the pulley. The pulley acts as the idler when the engine is switched off but once you switch it on, it will start spinning together with the hub. the clutch on the compressor is definitely spinning with the ac off. Seized compressor pulley bearing (but the pulley would not be turning) (There are other causes for A/C to not work including too much refrigerant or too much oil--but since yours had been working, these are unlikely) Here is some info on diagnosing A/C system problems:. Installed these last xmas and been in hospital for months just got home and started the car to let it run and the belt started smoking the ac was Help with Mba pulley on ac compressor - Chevy Impala SS Forum. Might have whoever is going to do the work for you diagnose it. This happens when the AC is off as well as on so It is probably the constantly spinning bearing on the compressor. 1989 ford crown victoria clutch and pulley not spinning on ac compressor. The Sanden compressor is equipped with a serpentine pulley which of course we are not going to use now. ac compressor pulley won't turn when i turn the a/c on, the compressor pulley (or whatever it's called) is wanting to turn but it's just not turning. Find our best fitting a/c compressor bypass pullies for your vehicle and enjoy free next day delivery or same day pickup at a store near you!. I took of the AC belt and the noise stopped. If not or if it is hesitating you may need to try another spacer. The proper gap is between. HOW AC CLUTCH WORKS. Scotty Kilmer, mechanic for the last 48 years, shows how to correctly repair your car's AC system when the compressor locks up. If the pulley is not spinning or the compressor belt is loose, you will need to repair this part. When the ac is on the thing works great but I can hear the compressor spinning and when it freezes up I cannot hear it. The pulley acts as the idler when the engine is switched off but once you switch it on, it will start spinning together with the hub. Also if there is not an alternate belt routing you might try and see if there is a compressor delete option. When you turn the wheel with the ac on the load is even greater due to the PS steering pressure so its possible its not the compressor could be. My question. Ac Fan Not Spinning Waterloo IA 50704 If there is no ice or frost, then continue troubleshooting at the outside unit. The AC compressor is engaged by an electrically operated clutch within/behind the pulley wheel. The rebuilt compressor I installed came with the pulley installed on it. Re: bypass ac compressor in 1999 chrysler sebring If i remember right that is a one belt system. Look under the hood while your engine and air conditioning are running to see if the pulley on the compressor is spinning. A side note I just upgraded the headlights, they were plug and play so I don't think this was the cause more just coincidence in timing. I did take it to a local guy and he was indeed able to pull the AC clutch, pulley and coil off while the compressor was still mounted so as to avoid dealing with refrig vacuum/recharge, etc. have an assistant hit the AC button, you should see the face of the pulley pull in, at this point everything should be spinning. Thanks very much, Jim Lee 1996 960. When the compressor came on it just began to squeal as it would slip. It turns on and works as it should but no cold air, just vented from outside. In fact, after climbing underneath, I can see the pulley spinning when the AC is ON, but I'm getting a little WHIRRR sound from the compressor. This is a full explanation of how the system works. When the ac is on the thing works great but I can hear the compressor spinning and when it freezes up I cannot hear it. Remove the drive belt from the compression pulley. I think my pulley continued to spin though. Then look at the front of the compressor clutch. With the A/C compressor not. With the belt turning and the pulley "frozen", the belt gets burned up by the heat and friction of spinning around the non. Install it and have it properly serviced. The pulley acts as the idler when the engine is switched off but once you switch it on, it will start spinning together with the hub. Measurements of the alternator bracket, compressor, and pulleys without the compressor bracket is on page 2. The center of that pulley (face of it) spins only when the compressor is engaged. Watch this video of a compressor that is cycling on and off properly. Find our best fitting a/c compressor bypass pullies for your vehicle and enjoy free next day delivery or same day pickup at a store near you!. The clutch disc is attached to the shaft of the compressor which spins the compressor. The proper gap is between. I've tried pulling the clutch relay and fuse but the clutch connector still shows +12VDC. So, your compressor. If the belt is too loose, it cannot grab the compressor pulley tightly enough and the belt will continue to spin with the harmonic balancer. Are you sure the outer part of the compressor pulley (the part with the grooves in it) is really locked? Usually it's just the inner part that locks, not the actually pulley, not when the clutch is disengaged. I shut it off to keep from ruining the whole mess. 1990 AC does not turn on, Help I have a 1990 4runner, the vehicle runs mint, however the AC unit does not work. the AC clutch is engaged). 5 V with the. You might try turning it more and see if it loosens up. Ac compressor clutch not turning no cold air. A new four seasons compressor will cost me $220, and then I would have to evacuate and vacuum out the system which would cost me another $100 or more at a shop. This is a general explanation for removing the A/C compressor clutch. Chevy Suburban and Tahoe AC and Heater Problems So although the outer pulley is spinning with the serpentine belt, only when the a/c clutch is engaged is when the. Your AC compressor should spin freely without the AC clutch engaged, for example with the defrost and A/C switches turned off. When the car is running with the blower fans on, temperature set to cold, and the AC button pressed (it turns blue when pressed) the compressor does not turn on (I looked in the back). I was under the impression that the pulley could be pulled off and replaced, but a local mechanic is telling me that it needs a whole new compressor because it's all one assembly. Is there a way to just tighten the clutch or is it shot?. ac compressor You mean the clutch is frozen until you turn on the ac? Then the clutch both (1) becomes moveable and (2) engages the pulley and turns? I would think the clutch should turn along with the pump since these two appear to be connected by a shaft. The result is the damaged belt is unable to fully grip the compressor pulley when the magnetic clutch engages and slips until the compressor pulley is rotating. Subject: A/C compressor spinning without A/C on? IP: Logged Message: Had a question. 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. After installing the clutch, cycle the A/C clutch 20 times (5 seconds on and 5 seconds off). I pulled the AC Compressor out and both the bearing and compressor shaft seem to rotate with no seizing. They also have an AC delete for $70 (bracket with a faux pulley) and since it's winter who needs AC right? But now I've heard that some cars/people have ran a shorter serpentine belt to avoid replacing a costly AC comp. - Wells Bridge Relays - As with the capacitor, the HVAC technician may try replacing the start relay, which is the only surefire way to determine whether it's working right or not. I checked the single wire to the the AC compressor, and it gets the 14v signal when the AC is switched on. Now it won't work at all. 1) Raise vehicle on ramps & remove plastic shroud underneath AC compressor. While this may seem like a death sentence—especially in the height of summer—replacing AC compressors isn't the most complicated task. My two thoughts are air gap or low pressure even though I've pumped it full according to my ac pro gauge. No, the compressor clutch does not appear to come on (not to sound stupid, but the compressor clutch engaging would mean that the center of the pulley on the compressor starts spinning with the pulley, correct? If yes, then no, it's not spinning) Yes, I have a 12v meter, no 12v test light. with the AC still functioning but making noise. After removing the belly pan, I noticed the clutch pulley of the A/C compressor was spinning freely. Will low refrigerant level cause the AC compressor clutch to not engage 15 Answers. 2005 GMC 1500 Air Conditioning AC Not Working Facebook; I'll make sure it's spinning properly and try to check for any leaks. This does NOT cover installing a new one. I can't see the video at work, but the symptoms sound like complete pulley bearing failure (usually gradual though and not instantaneous) or the compressor locked up due to oil starvation or some other issue. I put a vacuum on the AC system for 25 minutes and then put a 12oz bottle of 134 to the low side. Anyway, the ac has always worked great, but this year when it started warming, it was just blowing warm. At first I thought it was the tension pulley but I replaced that today and the sound is still there. The drive plate stands 0. Figure out what’s wrong with your car’s A/C and fix the problem yourself, all for less than the diagnosis alone would cost at most auto repair shops. It is possible, I suppose, that a new belt improperly tightened could contribute to A/C compressor failure, but only if the compressor was warn out already - the belt could put extra pressure on the pulley, which could overstress worn parts and cause a failure. I looked at the compressor clutch with the engine running and the AC on, and it wasn't spinning. Now, I don’t think there’s any trick involved, there. A/C failure: Clutch or compressor? the outer pulley driven by. Then look at the front of the compressor clutch. The pulley acts as the idler when the engine is switched off but once you switch it on, it will start spinning together with the hub. Subject: A/C compressor spinning without A/C on? IP: Logged Message: Had a question. Do it right the first time and you won't need to do it again. And then bursts of a louder noise here and there. Watch this video of a compressor that is cycling on and off properly. There should be a belt on the compressor's clutch pulley. If you’re here, chances are you’ve tried to recharge your AC system and found a compressor clutch not engaging issue. In fact, after climbing underneath, I can see the pulley spinning when the AC is ON, but I'm getting a little WHIRRR sound from the compressor. The compressor only engages when the clutch is engaged, otherwise the pulley spins freely. I researched the problem on the internet and several forums say it is the starter capacitor. The rebuilt compressor I installed came with the pulley installed on it. Your AC pulley is a free spinning pulley that has a clutch on it. I set the compressor up on the clutch end, thinking that the oil will lube the seal on the inside and no squeak but it's still tight. Air Conditioner Troubleshooting, Insufficient Cooling? If the condenser fan and the compressor both run but the cooling effect is not adequate, you should check the temperature drop of the system. 1) Raise vehicle on ramps & remove plastic shroud underneath AC compressor. 5k rpm but would cool in gear driving above. Once I get the compressor out, is that pulley below the compressor still going to be there? The diagram on my truck shows to skip it completely when running it without AC. The pulley itself spins the whole time, because the engine is spinning it, obviously. Apparently the compress is not free spinning for some reason when it's not in use making the engine idle on a higher RPM. Look under the hood while your engine and air conditioning are running to see if the pulley on the compressor is spinning. A new compressor is $200 + the shipping. The AC compressor pulley will be held firmly in place by the compression inside. This essential component enables the AC unit to heat and cool your home by pumping refrigerant through the vapor-compression cycle. If the direction of rotation is required, some sort of idler pulley seems to be necessary. Any time there is a problem with the AC you should always make sure the clutch is moving. However i know on certain vehicles you can buy a pulley bracket to bolt where the A/C compressor would sit/ and or get a shorter belt. With the engine on, the belt and pulley will always be spinning. Pulley out of alignment. 2) Loosen idler pulley nut, relieve tension on belt and remove belt. We don't want to reduce the cooling capacity at all, so we will reuse the Sera pulley. This is the part number for my 01 with rear AC. the AC clutch is engaged). Correct? Do you have cold air? It's likely you're a little short on refrigerant. is the problem in the clutch coil or low pressure switch or else ? when i check the low side is too hi about 60 and high side is 130 this means that system not empty and problem is why the low side is too hi ? when i turn on the ac the. The AC compressor has to spin for the system to work. The clutch disc is attached to the shaft of the compressor which spins the compressor. He says "they don't do. Will I harm the compressor spinning it without refrigerant, the electrical will not be hocked up so no change of turning it on by accident. There is a pressure switch which detects that there is enough gas and if not the ac clutch won't engage. You also might hear a lot of noise, such as chattering bearings or a squealing belt (if the compressor is seized up). Yesterday I was under the hood and noticed that on the A/C Compressor (above the PS pump), the black "disk" near the belt wasn't spinning. A common cause of the ac clutch not turning on is lack of refrigerant gas in the system. have an assistant hit the AC button, you should see the face of the pulley pull in, at this point everything should be spinning. The front clutch will be hard to spin but if you spin the actual pulley where the belt rides it should spin free. These engine belts are often called "serpentine belts" when they. My AC compressor is locking up now. Whats not spinning? The belt should always be spinning the AC pulley. Look at the compressor pulley when the A/C is off, but the engine is running. This relay clicked as it became energized by the ECM. Comes in a sealed package, ready to install. the pulley turns when the truck is on, but i cant spin the clutch with my hand. I don't know why the compressor would seize up but it did. There is no way of knowing how long a compressor has been used by just looking at it, for the manual FDC blocking the discharge point while spinning the pulley could give a perception of the amount of compression one would get from a compressor. I am new to this part of the truck so I dont know if that's normal or not. Just be sure you get the correct compressor and drier. If it is not stuck or welded to the pulley and if the outer face of the A/C clutch still rotates freely by hand (A/C magnetic clutch turned off) then the internal guts of the compressor "could" be ok. The first 1/4 - 1/2 turn even had a squeak, like the seal was rubbing. Partial hijack: It's ok to spin the pulley on the compressor with ZERO lubricant/refrigerant/oil in it as long as the clutch is not engaged, correct? I want to swap in my new sanden that will be used to replace my york OBA but I don't want to toast it before I plumb in the inline oiler. Thanks for all the help everyone. If you wanted to, you could unplug the wire that runs to the clutch and jump it with power from the battery, should only be a single wire (bypasses the pressure switch). Hope this helps. There are a few symptoms you can look out for to know when you have a failing AC compressor. My two thoughts are air gap or low pressure even though I've pumped it full according to my ac pro gauge. If the belt is loose or worn the belt can slip on the compressor pulley and emit a loud squeal. on my '01 i can spin it. Comes in a sealed package, ready to install. AC Compressor Not Turning On During inspection I noticed the AC was not working. That was the first time I could hear the noise. For a fuller explanation of what causes an AC compressor clutch not engaging conditions, see this previous post. It doesn't cost anything to take a look. The AC compressor pulley will be held firmly in place by the compression inside. The pulley should be spinning at all times. Apparently the compress is not free spinning for some reason when it's not in use making the engine idle on a higher RPM. Nice and rusty. This in turn engages the drive pulley to the compressor input shaft, causing the shaft to spin. And that is with a cheap ass remanufactured compressor. I myself could do it, but I don't want to. Has anyone else had this problem? Can I fix it without replacing the whole compressor?. If the pulley does not turn and there is a loud squeal, this usually indicates a locked up compressor. Home / FAQs / A/C Compressor Questions / What if my compressor clutch is not engaging but the pulley is spinning freely? If the refrigerant charge is low the low pressure cut out or low pressure cycling switch can prevent the clutch from engaging. If it did not then you would have a toasted belt. As the swash plate rotates, the friction. If it does not, the switch needs to be replaced. Water pumps, alternators and power steering are nice things to have. Since then it has turned off completely. Adjust tension. 4) The AC clutch and pulley assemblies are as follows: 5) Remove clutch center bolt using the clutch tool as follows. head screw driver as a wedge to keep the pulley from spinning as you remove the bolt. Belts too loose. A compressor is two things An idling pulley when disengaged and that pulley locks (engaged) when so and compressor is pumping unless seized. In fact, after climbing underneath, I can see the pulley spinning when the AC is ON, but I'm getting a little WHIRRR sound from the compressor. Checked the "coolant" and it was a little over full, but not in the RED according to my gauge. It is designed in such a way that during catastrophic compressor failure and compressor crankshaft lock-up or damage the pulley will be able to rotate freely on its internal bearing and the car could be taken to a safe place for service. But, watch for the belt slipping on the pulley as the cause of the compressor not turning. And then bursts of a louder noise here and there. I am new to this part of the truck so I dont know if that's normal or not. If not, then the pulley bear is shot. Not sure on the 2. When the compressor clutch is not engaged, the input shaft of the compressor does not spin and the drive pulley freewheels on a sealed bearing assembly. If it now engages, you may have a bad relay or short between relay and compressor, or computer to relay. The York compressor can be mounted vertically or horizontally to either side. Pulley or. If I could access the connector to the compressor I would feed 12V directly myself but it is located on the underside of the. CHECKED ALL FUSES ,MARKED AC,UNDER CLOVE COMPARTMENT AND ENGINE HOOD. While cranking compressor should be off but if bearing of clutch welded up would turn compre. mk378 on Sat August 07, 2010 8:40 AM. This is a general explanation for removing the A/C compressor clutch. This creates wear and tear on the pulley after years of doing this repeatedly. This may get you driving again immediately. Belts too tight. What does this mean to the owners of the Fusion? I should start by saying there are many reasons why your car's A/C can stop working. Start by wedging the clutch hub so it can not rotate. Motor running, AC on max, fan on high. When diagnosing an air conditioning issue, it's easiest to begin at the compressor: With the engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. The first 1/4 - 1/2 turn even had a squeak, like the seal was rubbing. If it is the bearing its a relatively cheap fix but verify it first though. 6 then stumbles and dies if I do not start driving. The pulley is belt-driven by one or two V-belts directly from the engine's crankshaft or by a multi-ribbed V belt or serpentine belt. My question. When she got home, I quickly realized the problem: the AC rotor pulley wasn't spinning and the serpentine belt was just dragging across it! I took the clutch off and it was pretty shredded. Your AC compressor should spin freely without the AC clutch engaged, for example with the defrost and A/C switches turned off. My car has 167000 miles. It just hums. Could the bearings be bad, or should I just replace the hole thing?. A common cause of the ac clutch not turning on is lack of refrigerant gas in the system. Reach your hand down there and see if you can spin the pulley. We hooked it up and he said the pressure was fine, so he didn't think there was a leak. When the compressor is running it is blowing cold. Jeep Cherokee 1997-2001: Why is the A/C Not Working? The air conditioning system in your Jeep Cherokee is quite advanced, but it doesn't have to be very complicated to find out what is wrong when it is malfunctioning. with the car running AC off get a good eye on the pulley. When the AC system is turned on, the rotor/ pulley assembly and the armature are locked together by the magnetic action of the compressor clutch coil. Rule of thumb is 1/8 (. To determine the input or output speed or the pulley and cog sizes needed in a drive you may use a simple ratio. Either it will be completely warm air or the level of coldness won't be what it once was. So, Where to begin? It wasn't difficult to spin the compressor pulley by hand. The pulley turns whenever the engine is running, although the compressor clutch is not engaged when the air conditioning is turned off. On this arrangement the belt turns the alternator in a different direction than the crankshaft, A/C compressor and the P?S pump. the AC clutch is engaged). Yep outer part of the compressor is not turning, just the belt pulley. continues doing that as long as the ac or defroster is on. Scotty Kilmer, mechanic for the last 48 years, shows how to correctly repair your car's AC system when the compressor locks up. So one morning, right after startup, checked it and found that the front part of the AC compressor pulley intermittently spins for about 2 seconds. This happens when the AC is off as well as on so It is probably the constantly spinning bearing on the compressor. The clutch is mounted on the front of the pulley to engage the compressor as it cycles. The pulley will develop scuffs and other marks on its surface when this occurs. If it now engages, you may have a bad relay or short between relay and compressor, or computer to relay. This problem happened after I adjusted the belt due to a bit of squeeking. With a V-Belt drive the answer is theoretical, due to belt slippage, and with a timing belt or a chain drive not every answer provided is an available combination. Get shopping advice from experts, friends and the community! My air compressor will not kick over. The AC compressor and alternator are driven by a belt that is driven by the engines harmonic balance pulley. So, I thought it was the PS pump. 5 years, its been great. The pulley is belt-driven by one or two V-belts directly from the engine’s crankshaft or by a multi-ribbed V belt or serpentine belt. Investigation shows low side pressure high (No high side gauges) and when the car is on, the ac pulley is spinning. Happened on a Ford I had. AC bypass pulleys are much cheaper than a new AC compressor. Now it won't work at all. Not only does it put the other components in the air conditioning system at risk for getting damaged, it also causes discomfort to anyone who's inside the cabin. ac compressor pulley won't turn when i turn the a/c on, the compressor pulley (or whatever it's called) is wanting to turn but it's just not turning. I DO NOT think I've ever seen the aux fan come on. Chevy Suburban and Tahoe AC and Heater Problems So although the outer pulley is spinning with the serpentine belt, only when the a/c clutch is engaged is when the. If the clutch is good on your car it can be taken off and put on the new compressor. However, if mounted horizontally, the manufacturer recommends that the suction port be on top. Checked freon and it was still charged. If the compressor got hot enough to make the shaft seal leak (or if it was leaking all along) you might consider replacing the whole unit. The clutch not being able to be spun by hand has caught more than one experienced mechanic off guard. Will ship Australia wide. At least I narrowed it down to the A/C. There is an electronic clutch mechanism that engages or disengages the actual compressor from the pulley depending on whether your AC is on or off. If the pulley does not turn and there is a loud squeal, this usually indicates a locked up compressor. I'm going nuts over this and don't want to spend money on any other things that i do not need to replace any insights and help would be greatly. What is an AC clutch compressor. My two thoughts are air gap or low pressure even though I've pumped it full according to my ac pro gauge. AC Compressor Drive Ring Inside the air conditioner's refrigerant compressor is a drive ring made of a friction material that is mounted to both sides of the "swash" or "wobble" plate. Excessive belt wear. Have you looked to see if the compressor clutch is engaged and is spinning while the AC is on? I would start there. So i had a friend of mine look at the car and i thought the compressor was turning on because i would see the rpm change when i turned the ac on even thought there was no cold air. If your Air Conditioning compressor isn't working (the clutch won't engage) then watch this video. I have been getting a code 33 a lot recently which my Haynes manual says it is: Air conditioning clutch relay circuit. With our last post, we walked you through necessary steps to take in preparing your outdoor AC unit for the more regular usage that the weather shift requires. Just a rugged piece of equipment that will put out air at a. Bad AC Compressor Symptoms. The AC has never been recharged to my knowledge, but the Forester was two. i check the wire they go to ac compressor and it 14 v in their so it is not form ac rely or electrical problem. 2) Loosen idler pulley nut, relieve tension on belt and remove belt. Thanks very much, Jim Lee 1996 960. so just bought this car, 2009 fx35 with 78k miles. Anyway, the ac has always worked great, but this year when it started warming, it was just blowing warm. Welcome to Mazdaspeed Forums.