If the coil loses magnetism, then the air conditioning rotor will have no source of power, and it will lead to an air-con malfunction. The AC compressor relay is responsible for supplying power to the AC compressor and clutch. A pressure plate bolted to the flywheel exerts constant force, by means of a diaphragm spring, on the driven plate . This connects the air conditioning compressor's shaft end to a pulley driven by the engine's crankshaft through a belt. This allows the compressor to shut off even while the engine is running. 334 E 21 ST MIAMI ,FL 33010 (786) 483-9406. Think of it as a switch that is responsible for engaging and disengaging the AC compressor pulley from its compressor drive. Most cars use a friction clutch operated either by fluid ( hydraulic ) or, more commonly, by a cable. A clutch is a mechanically operated or controlled mechanical coupling used to temporarily join (or separate) two shafts. Compressor Clutch The air conditioning compressor has an electromagnetic clutch that can engage or disengage the compressor pulley. It is used to both remove and install the clutch simply by flipping the outer nut. Okay, moving on. This engages the clutch by activating a cylindrical electromagnet within the pulley and clutch assembly. My AC Compressor makes this sound. Pull off the pulley. A delay can cause serious damage to the air conditioning system and the engine. Could prove by pulling AC Clutch relay and use a jumper to provide 12V to the circuit. FREE AC CHECK UP Auto A/C Repair LLC. Earlier cars have a series of coil springs at the back of the pressure plate, instead of a diaphragm spring. The temperature within the vehicle is thermostatically controlled. been fixin' cars for 71 years Some of what I know is from experience, some from listening or reading-most of it, I just make up. How to determine if the clutch gap is the culprit: Next time the compressor clicks off (starts blowing warm air): leave the a/c on and take a wooden broomstick and push the clutch in with it. My ac compressor clutch engages for about 4-5 seconds then stops for 4-5 seconds, it does that over and over again, the air is not cold, freon is good, could this be what is causing the problem? is it fixable or does it need to be replaced. . Removing the magnetic clutch. It comes in three pieces: a bolt, outer nut and a small screw that goes at the tip of the bolt. A typical AC compressor removal and installation diagram. Again, this is something that should be checked out by a professional. The compressor pulley always turns when the . The AC clutch pulley might be what needs replacement, but it’s likely to have done some damage to the compressor on its way out. I'm not one to take my car into a dealership. Other vehicles also come with an automatic clutch adjustment that works by drawing the clutch up and away from the floor and allowing it to fall back down again. AC Compressor Clutch - AC Clutch Replacement Parts 20% off orders over $120* + Free Ground Shipping** Remove the snap ring. Can i fix the clutch without replacing the compressor? This situation is dangerous due to the serpentine belt powering not only the AC unit, but the vehicle's charging and cooling systems as well. When power energizes the clutch coil, the magnetic field pulls the clutch in to engage the compressor shaft. . Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. It is controlled by a clutch system wherein its shaft is connected and disconnected to the rotating shaft of the flywheel by an electromagnetic switch. The AC compressor clutch will not activate when plugged into the original harness, even though power is coming from the dash switch. “AC” stands for air conditioning, though I hope you already knew that. If the clutch overheated, it may have warped the aluminum case, causing stress fractures or affecting how a new clutch would fit. The AC clutch cycling switch is a very important component to a modern vehicle’s AC system.It is mounted in the low pressure side of the AC system and its purpose is to detect the flow of refrigerant in the system by measuring the pressure. The AC clutch is on the front of the compressor where the belt rides. This will cause friction that will make the rotors spin. An air conditioning compressor in a car has an electromagnetic clutch. It is an ominous sign when the clutch engages but the compressor does not spin. Tags: ac clutch relay, ac compressor relay, ac relay, clutch coil relay, compressor relay. Services . engine is running, but the compressor only runs when the pulley is engaged to the compressor driving shaft. Removing the clutch plate and hub using a puller. The center part (the clutch) should be engaged and should be spining along with the pulley. It is the equivalent of an electric switch, except that it controls movement (usually rotation) instead of current. Exploded view of the AC compressor clutch with individual components labeled. Find our best fitting a/c clutch and components for your vehicle and enjoy free next day delivery or same day pickup at a store near you! Holding the clutch hub with a suitable tool while the bolt or nut is removed. But … A/C Compressor Clutch Coil Test. Any good AC shop should be able to supply a replacement clutch. The three components of a car’s air conditioning compressor clutch. When removing the clutch...Be carefull not to lose the washers between the AC clutch and the compressor, you will need them. When power is applied to the clutch it engages to turn the compressor. An AC clutch compressor is a type of compressor that derives its power from the car engine’s flywheel. When current is passed through the coil, it creates a strong magnetic field that pulls a splined hub into contact with the spinning pulley. Is it just a bad clutch on the compressor? . The image below shows the tool configured for clutch removal. The clutch puller tool I used is part of Kit #65. The way to go is an AirCon system scan to isolate the electrical fault(s). To activate the compressor the clutch is activated. Still another air conditioner clutch condition that you might feel, more than hear, is a slight vibration when the air conditioner clutch disengages when you are idling at a light or if your vehicle has reached the temperature you want. When the air conditioning system is turned on, an electric signal is sent to the compressor clutch. The way in which the clutch adjustment is designed, as well as its exact location, vary according to each specific model, but the most common places you’re likely to find it in is under the hood opposite the firewall. The modern air conditioning compressor clutch is an integral part of a completely automated temperature control system. AC clutch shim procedure for S60. Remove the clutch plate. The air conditioner clutch in a car can break fairly often, so it is important for you to know as much as you can about AC clutch replacement.The air conditioner clutch is made of two circular iron friction plates, one attached to the engine with a drive belt so that it constantly spins as long as the engine is running, and another attached to the rotor that powers the air conditioner. Most, but not all, automobile air conditioning systems are switched on and off by using an electromagnetic clutch. Use puller 9995597; Keep the shims. An A/C compressor clutch coil is a simple device made of fine windings of wire wrapped into a coil. AC Clutch kits are in-stock and available for all makes. Meaning I still would buy cheap clutch on ebay and give it a try since the system seem to hold the refrigerant. Use puller 999 5598 and socket 999 5599 . Is it just a ground wire no longer grounded? 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. Method 3: Replacing The Clutch. Previous; Next ; Our Contact Info Best Automobile AC Diagnostics service & repair. I want to know if anyone knows how to fix it. The AC compressor relay is no different then other electrical relays - its electrical contacts will eventually wear or burn out, and the relay must be replaced. What does the second wire do? AC clutch is wearable and needs checking the gap every few hundreds of working hours. As soon as the current stops, such as when you turn off your air conditioning, the clutch … When a car is moving under power, the clutch is engaged. That is one of the most common negligence MB owners do. while the engine is running and the AC is on try lightly tapping on the clutch face with a hammer or something similar, if it engages then you have too much clearance between the friction surfaces of the clutch discs The a/c compressor clutch coil inside your car is an electromagnet that attracts both the fan belt and air conditioning rotors. Replacing the magnetic clutch compressor. A bad AC compressor clutch needs immediate fixing. When it rises above the preset level, a switch is closed, sending electrical current to the clutch coil. The Jaguar cooled as good or better than the other cars I currently own, all of which have original factory 134a AC systems. The AC compressor clutch is the first thing that moves every time you turn on your AC. A failed electronic clutch on a vehicle's AC compressor can lead to the freeze up of the AC pulley which, in turn, destroys the belt. When current flows through a magnetic coil in the clutch, the clutch engages. The AirCon can switch itself on and off intermitantly when you have a faulty resistor pack/thermostat, faulty track on your Accelerator position switch, faulty Hot-Cold control, faulty system pressure switches, compressor clutch, or associated relays and wiring. THERE'S AN "AIR GAP" that needs to be achieved for the clutch to engage properly, and those washers (could be 1, 2 or 3) are the ones that do the trick. The center part on the pulley of the A/C compressor will not spin when you have the air conditioner off or if there is a problem. Changing the compressor clutch could be the only solution in this case. If the clutch engages with the push of the broomstick, you know thats the problem. In this video, I show you how to tell if a car's AC compressor clutch is engaging. 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