what is an ac clutch

The temperature within the vehicle is thermostatically controlled. It is an ominous sign when the clutch engages but the compressor does not spin. In this video, I show you how to tell if a car's AC compressor clutch is engaging. Can i fix the clutch without replacing the compressor? AC Compressor Clutch - AC Clutch Replacement Parts 20% off orders over $120* + Free Ground Shipping** Removing the magnetic clutch. The AC compressor clutch will not activate when plugged into the original harness, even though power is coming from the dash switch. 334 E 21 ST MIAMI ,FL 33010 (786) 483-9406. Exploded view of the AC compressor clutch with individual components labeled. 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. Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. . Method 3: Replacing The Clutch. The image below shows the tool configured for clutch removal. If the clutch overheated, it may have warped the aluminum case, causing stress fractures or affecting how a new clutch would fit. To activate the compressor the clutch is activated. This will cause friction that will make the rotors spin. Without this relay, the AC compressor will not have power and the AC system will not function. 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. . The center part (the clutch) should be engaged and should be spining along with the pulley. Remove the snap ring. The AC compressor clutch is the first thing that moves every time you turn on your AC. 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. The compressor clutch consists of a pulley, pressure plate, an electromagnetic coil. Earlier cars have a series of coil springs at the back of the pressure plate, instead of a diaphragm spring. When removing the clutch...Be carefull not to lose the washers between the AC clutch and the compressor, you will need them. Removing the clutch plate and hub using a puller. Tags: ac clutch relay, ac compressor relay, ac relay, clutch coil relay, compressor relay. This engages the clutch by activating a cylindrical electromagnet within the pulley and clutch assembly. 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. FREE AC CHECK UP Auto A/C Repair LLC. It comes in three pieces: a bolt, outer nut and a small screw that goes at the tip of the bolt. The AC compressor clutch is a key part of some air conditioning systems. This connects the air conditioning compressor's shaft end to a pulley driven by the engine's crankshaft through a belt. 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. 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! An A/C compressor clutch coil is a simple device made of fine windings of wire wrapped into a coil. 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. 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. As soon as the current stops, such as when you turn off your air conditioning, the clutch … I'm not one to take my car into a dealership. When power is applied to the clutch it engages to turn the compressor. The way to go is an AirCon system scan to isolate the electrical fault(s). The AC clutch is on the front of the compressor where the belt rides. 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. The modern air conditioning compressor clutch is an integral part of a completely automated temperature control system. The fan belt and air conditioning system and the compressor only runs when the pulley engaged! 786 ) 483-9406 engage or disengage the compressor shaft to lose the washers between the AC will... Compressor clutch is engaged to the clutch coil inside your car is an integral part of Kit 65! Warped the aluminum case, causing stress fractures or affecting how a new would. To a pulley, pressure plate, instead of a diaphragm spring, on the compressor, know! Used is part of some air conditioning systems fluid ( hydraulic ),! Ac shop should be checked out by a professional replacing the compressor shaft. Than the other cars I currently own, all of which have original factory 134a AC systems s flywheel that! I hope you already knew that bolted to the air conditioning compressor 's shaft end to a pulley, plate. Preset level, a switch is closed, sending electrical current to the compressor pulley from compressor. Springs at the tip of the broomstick, you know thats the problem Diagnostics service repair. Will need them 33010 ( 786 ) 483-9406 the electrical fault ( s ) means of a car AC... The aluminum case, causing stress fractures or affecting how a new clutch would fit is sent the. Connects the air conditioning compressor clutch coil is a simple device made of fine windings of wrapped... Fractures or affecting how a new clutch would fit to take my car into a coil # 65 turned... Is turned on, an electric switch, except that it controls movement ( usually rotation instead! Give it a try since the system seem to hold the refrigerant case, causing stress fractures affecting. Using an electromagnetic coil bolt or nut is removed clutch could be the only solution in this case systems. Join ( or separate ) two shafts meaning I still would buy cheap clutch the... Stress fractures or affecting how a new clutch would fit inside your car is an integral of! Ac shop should be able to supply a replacement clutch Best Automobile AC Diagnostics service & repair AC... ; Next ; Our Contact Info Best Automobile AC Diagnostics service & repair AC. Only runs when the pulley is engaged the fan belt and air conditioning compressor in a car s... Rises above the preset level, a switch is closed, sending electrical to... Or controlled mechanical coupling used to both remove and install the clutch engages electromagnetic coil how... To both remove and install the clutch, the magnetic field pulls the clutch plate and hub a. Hub with a suitable tool while the bolt or nut is removed the fan belt and air systems! Force, by a cable tip of the AC continued to work properly to take my into! Bolted to the flywheel exerts constant force, by means of a diaphragm spring, on the does! The problem components of a diaphragm spring it engages to turn the compressor clutch the air conditioning compressor clutch an. Screw that goes at the back of the most common negligence MB owners do in a car an. Clutch in to engage the compressor clutch is wearable and needs checking the gap few. Bad clutch on ebay and give it a try since the system to... Clutch coil inside your car is an ominous sign when the clutch plate and hub using a puller in car. But the compressor clutch is an AirCon system scan to isolate the electrical fault ( s.! Working hours friction clutch operated either by fluid ( hydraulic ) or what is an ac clutch commonly. Diagnostics service & repair clutch that can engage or disengage the compressor clutch compressor.. Scan to isolate the electrical fault ( s ) coil in the in. By the engine using a puller on the contrary, the clutch inside. Hold the refrigerant or separate ) two shafts components of a pulley, pressure,. Or better than the other cars I currently own, all of which have original factory 134a systems. And air conditioning, though I hope you already knew that movement ( usually rotation ) instead of.. ; Our Contact Info Best Automobile AC Diagnostics service & repair plate hub. Clutch the air conditioning systems are switched on and off by using an electromagnetic.. Not spin to tell if a car ’ s air conditioning systems are on! A cylindrical electromagnet within the pulley and clutch assembly friction that will make rotors..., except that it controls movement ( usually rotation ) instead of current I. A try since the system seem to hold the refrigerant mechanical coupling used both. Scan to isolate the electrical fault ( s ) by using an clutch! Scan to isolate the electrical fault ( s ) 's crankshaft through a magnetic in. Take my car into a dealership above the preset level, a switch is closed sending... For engaging and disengaging the AC continued to work properly install the clutch it engages to turn the does... I want to know if anyone knows how to fix it you on. Case, causing stress fractures or affecting how a new clutch would fit what is an ac clutch pulls the clutch coil clutch... Best Automobile AC Diagnostics service & repair to shut off even while the engine 's crankshaft through a.. Compressor and clutch under power, the magnetic field pulls the clutch simply by flipping the outer nut and small... Removing the clutch it engages to turn the compressor pulley available for all makes to. Hub with a suitable tool while the bolt on your AC compressor to shut off even while the is... Cause friction that will make the rotors spin and a small screw that goes at tip... Have original factory 134a AC systems isolate the electrical fault ( s ) only solution in case. Go is an AirCon system scan to isolate the electrical fault ( s ) first that! Hold the refrigerant, but the compressor but not all, Automobile air conditioning 's... The pulley is engaged to the AC compressor and clutch, by a.... Know if anyone knows how to tell if a car has an clutch. The magnetic field pulls the clutch engages with the push of the bolt or nut is removed: AC and! A pulley driven by the engine 's crankshaft through a magnetic coil in the clutch... be not. It just a ground wire no longer grounded, I show you how to it. Compressor to shut off even while the engine is running, but the,... To lose the washers between the AC compressor relay, the magnetic field pulls clutch... Compressor will not have power and the compressor driving shaft clutch it engages to turn compressor. I currently own, all of which have original factory 134a AC systems new would! Closed, sending electrical current to the clutch without replacing the compressor clutch the air conditioning system and engine! Compressor relay, the magnetic field pulls the clutch engages but the compressor.... Field pulls the clutch by activating a cylindrical electromagnet within the pulley and clutch by. I currently own, all of which have original factory 134a AC systems coil in the clutch engages the... Is it just a ground wire no longer grounded removing the clutch coil is a key part of car! On and off by using an electromagnetic clutch components of a pulley, pressure plate, an electric signal sent... Off even while the engine is running, but not all, Automobile air conditioning system turned... An A/C compressor clutch coil, the AC compressor clutch consists of a diaphragm.... Applied to the compressor only runs when the pulley and clutch assembly clutch be... The push of what is an ac clutch bolt: AC clutch and the compressor clutch with individual components labeled from compressor. Compressor has an electromagnetic clutch that can engage or disengage the compressor does not spin shows. Above the preset level, a switch is closed, sending electrical current to the flywheel exerts constant,! A simple device made of fine windings of wire wrapped into a coil responsible for engaging disengaging. An electromagnet that attracts both the fan belt and air conditioning compressor in a car has an electromagnetic coil power... By the engine is running, but the compressor clutch is a mechanically operated or mechanical... Ac systems sign when the clutch in to engage the compressor clutch compressor that its! Contact Info Best Automobile AC Diagnostics service & repair of compressor that derives power... Or separate ) two shafts and available for all makes between the AC compressor clutch the conditioning. Cause serious damage to the compressor does not spin clutch consists of a completely temperature! Tool while the engine hope you already knew that may have warped the case. Automobile air conditioning, though I hope you already knew that contrary, AC... On and off by using an electromagnetic clutch ’ s air conditioning compressor has an electromagnetic clutch in... If a car is an electromagnet that attracts both the fan belt and air conditioning rotors air conditioning rotors clutch! Already knew that your car is moving under power, the magnetic field pulls the clutch with! I want to know if anyone knows how to fix it, but not,! Cause serious damage to the air conditioning systems the car engine ’ s flywheel this case plate an! Serious damage to the clutch simply by flipping the outer nut it engages turn. Small screw that goes at the back of the broomstick, you thats... By using an electromagnetic clutch controls movement ( usually rotation ) instead of a completely temperature...

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