In this step, you have to detach the connector cable from clutch oil. The car ac compressor is majorly the heart of the air conditioning system. A delay can cause serious damage to the air conditioning system and the engine. I think the car stalled because the A/C seized up. Bad for the car to start with compressor on? The compressor is usually located towards the front of your engine, just inside the grill of your car. Check the front side of the clutch to examine its condition. Checking a Car’s AC Compressor Turn off your vehicle. An easy way to check the clutch of your AC compressor is to gently and lightly tap on the clutch when the compressor is running and the motor is on. Step 4: Inspect the clutch located at the front of the AC compressor and make sure the clutch rotates freely. Stand in front of the AC compressor at the front of the engine. so I looked for fuses and what not but that wasnt the problem. If the power and ground checks out in the relay socket, test the relay by swapping in a similarly sized relay. 000569, Member of Tokyo Chamber of Commerce Boueki - 201650, How To Manually Engage AC Compressor Clutch: The Easiest Methods, 11 Signs Your Car Is NOT Shifting Correctly, 9 Ways You Are Unconsciously Wasting Money on Car, 6 Commons Symptoms of Bad Spark Plug Wires, Reason for Car Making Humming Noise When Accelerating, Things To Avoid While Driving An Automatic, Best Tire Pressure Monitoring System Reviews. Normal current should be 3.6 - 4.2A at 12VDC. You might see that under heavy acceleration, for example. They don't want to sell clutches, just complete compressor units. Route the wires directly to the vehicle battery. If the bearing or clutch have failed, it is recommended that the compressor … The computer can turn it on when needed, then off when it has done its job. Are Cars Designed to Fail At A Certain Point? If the circuit tests normal, test or replace the A/C clutch. What Is Shift Lock Release And How To Use It? To check AC compressor clutch air gap, simply insert a feeler gauge between the clutch plate and pulley with the engine off. Sadly at over 400 mega ohms the clutch coil has failed. A bad AC compressor clutch needs immediate fixing. If the AC clutch fails to energize then it would mean that you have a problem with power, ground, thermal protector switch, or the magnetic clutch. Today when I was coming back home from work the AC worked. If the air gap is too wide, you may be able to correct it by using a different spacing washer. Check for a tight fit of the field coil retaining snap ring. So, in case there is any problem with the compressor, the entire air conditioning system will also be affected. Is there an easy way to tell whether the A/C clutch failed, or the compressor? It is an ominous sign when the clutch engages but the compressor does not spin. Tips – You should route the jumper wire to avoid it getting tangled or interfering with other moving components. He owns a car repair shop at downtown Osaka, and he put all that experience to good use in his sharing posts. The system’s computer keeps the relay grounded but it can go on and off due to the bad switch. Changing the compressor clutch could be the only solution in this case. The Answer. I dont have guages to check pressure so I googled and found an article about a Ram with similar problem. Step 1: Check the clutch. (4) bad compressor clutch. If the magnet is defective, replace the compressor. Step 1: Check the clutch. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. Touch the test light to the wires on the clutch relay. Most importantly, a bad ac compressor can prove to be dangerous. I hear the clutch is part of the compressor unit and is not servicable. In earlier air conditioning systems, the compressor ran at full capacity whenever its cycling clutch was engaged. I’d leave the AC siwtch on all the time. Examine the A/C clutch with a flashlight. Although I do not recommend doing this unless you HAVE too, you could damage the compressor … Driving a Toyota Land Cruiser: Why Is It Appealing? You have to jump-start it and the process won’t take more than a couple of minutes: Examine the oil level in the compressor. Compressor: The air conditioning compressor, driven by a belt or electric motor, circulates refrigerant in the system. 6.Refrigerant Leaks. (5) the ECU can tell the compressor clutch to disengage. Using low-quality oil could be a reason for failing AC compressor clutch but it could happen even if you use synthetic oil and high-quality coolant. What does the second wire do? When you turn your air conditioning on, the A/C compressor clutch is the first part to move. Rather, you will see friction of the belts. Test for AC Compressor Clutch Function. 2. Nick, I found the clutch kit on ebay for $82.50 shipped. (too much load on the engine?). Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. AIR CONDITIONING COMPRESSOR CLUTCH. As above, check the pressures in the system, and then see if the compressor clutch gets +12v when you engage the switch in the dash. OK, with a/c on and engine running there is power to the switch on the accumulator. How Long Do CVT Transmissions Last? Low level of refrigerant. how to manually engage ac compressor clutch. It is responsible for keeping the refrigerant flowing and thereby ensuring smooth performance. In a few car models, the power of the air conditioning system flows from the AC switch to the fuse before being transmitted to the clutch oil through the low-pressure evaporator temperature. Think of it as a switch that is responsible for engaging and disengaging the AC compressor pulley from its compressor drive. If you want to do a quick test with the compressor out of the car already, you can jump the power on the compressor with 12v and a ground. Facts and Fallacies! Touch the test light to each of the three AC clutch wires. Command … This is important because the pins on the compressor connector are small, so select connectors that will fit in the compressor plug and not short out by touching each other. I made sure to check the other lead from the coil that is tied to the body of the compressor, that was in good condition mechanically. Check your belts to ensure there is proper tension and the belts are not damaged. Knowing how to manually engage AC compressor clutch will help you skip a visit to the mechanic. Unplug the compressor connector. The clutch wire felt broken along its length. If your air conditioning isn't working properly, you may need to replace the A/C compressor clutch to fix the problem. The compressor drive hub is usually found at the front of the pulley and is attached directly to the compressor driveshaft. Condenser: Usually mounted forward of the radiator, the condenser looks like a thinner radiator. Turn the engine on. An electromagnetic clutch provides the mechanical link between the pulley and the compressor input shaft whenever air conditioning is demanded. The AC clutch is on the front of the compressor where the belt rides. Before checking to see if a clutch needs to be replaced, see if it is engaging and disengaging properly. The car is a 2010 honda civic with 150K miles and has banged up bumper. Remove the relay from the socket. When you are sure that there is a problem with the clutch, the next part is to engage it. When you turn your air conditioning on, the A/C compressor clutch is the first part to move. If the ac clutch is working but the gauges show equal pressure, the compressor … The middle wire should read "hot." When power is applied to the clutch it engages to turn the compressor. I cut past the break and exposed the wire to do a repeat test. I would leave it like that till the fall, then add a spacer or something so the clutch isn’t engaged. Go on to check the fuse if you cannot read the voltage readings. If this happens, quickly remove the wire and replace the compressor. You'll hear a distinctive click when the compressor is energized as the drive plate is pulled into place. The other cause of AC compressor failure is refrigerant leaks. Repeat this procedure several times, each time listening for the clutch to energize. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, "Truck and Van Repair Manual", Chiltons: 1993. AIR CONDITIONING COMPRESSOR CLUTCH. Touch the light to all three wires once more. In almost every instance when the clutch fails, it becomes burnt and discolored. Is there an easy way to tell whether the A/C clutch failed, or the compressor? Look into This! With a engine off: If you want to purchase a power probe for the clutch you can do that or try to use a wire such as in the video above. I had no other choice, I had to narrow down my problems from TIPM, low freon, bad clutch, or bad compressor. How to test the compressor clutch relay. Checking to see if the compressor clutch is engaging is a simple visual inspection. I have an open coil. or $3K at most? Start the engine and let it warm up. How do you check AC compressor clutch to see if its bad. Test for AC Compressor Clutch Function. Check for power AND ground to the compressor. The compressor looks like a small motor with a large wheel on the end. The clutch wire felt broken along its length. Afraid if there’s other issues, I’ll blame them…, So I could do the clutch removal, grinding and replace. Take the fused jumper wire and connect its one end to that side of the wire connector that was connected to the compressor. I jumped across the plug and compressor clutch engaged. I think the car stalled because the A/C seized up. If only the pulley is rotating, the compressor clutch is having an issue, which could be stemming from several sources – a blown fuse, bad clutch oil, low-pressure lockout, or an open wire in the oil. The A/C compressor is the heart of the system, and without a good compressor, the unit will not function. The flexible, rubber isolators that allow the clutch disc to move in and out will melt from the intense heat, and the metal plates will appear rusty. When this component does not work properly, the engine does not get the cold air flow – leading to some major complications. A Open the hood and look at the air conditioning compressor… Use a digital voltmeter to measure the ground and voltage of the battery at the detached connector cable. Today when I was coming back home from work the AC worked. Everything You Need To Know! Attach the other end of the jumper wire to the positive terminal of the battery. Install jumper connectors onto the compressor electromagnet. Turns out there are 2 switches in the … If you have any problem with the AC compressor then they will not engage. 99 Measure the current draw when the clutch is engaged. Open the hood and look at the serpentine belt to locate the AC compressor. Now, listen for the clutch and the compressor and check if they engage. The process is a bit different for older cars that are not compatible with the R134a type. I made sure to check the other lead from the coil that is tied to the body of the compressor, that was in good condition mechanically. The flexible, rubber isolators that allow the clutch disc to move in and out will melt from the intense heat, and the metal plates will appear rusty. If the battery voltage is present at the plug, test the coil for resistance. Using the 20 volt setting on the DVOM, check for battery voltage at the harness connector. Proudly installing things where they're not … Compressor Clutch. The Easy Way to Use a Recharge Kit for Car AC. Before checking to see if a clutch needs to be replaced, see if it is engaging and disengaging properly. Any downside? Tips – When you are going to manually engage the compressor, make sure that the system has enough oil. What is the most common reason for an air conditioning compressor not to engage? Touch the probes to the clutch coil terminals. Inadequate lubrication can damage the compressor. How To Reset Check Engine Light: Follow These 4 Easy Ways! Check the front side of the clutch to examine its condition. Sometimes, when the clutch is worn, the disc is too thin and may not engage properly. Easy. Your email address will not be published. Turn the AC settings to the "on" position. You can also check the high and low-pressure switch of it. Keep it safely away from all other components. If a short or open is found in the field coil, it must be replaced. I cut past the break and exposed the wire to do a repeat test. The compressor is engaged by the compressor clutch, made up of a powerful electromagnet and a drive plate. Nope just how to check the clutch electrically Your car should be running with the AC on to check the compressor clutch. Also, find out whether the clutch and the pulley are spinning. I want to direct battery voltage to the clutch to see if it clicks before I install it, how exactly do I do this? In these instances, replace the compressor assembly. My AC isnt working, the clutch wont engage. An automobile can have numerous serious problems and a dysfunctional AC compressor clutch is one of them. It will supply the battery voltage to the compressor clutch, allowing it to engage manually. Unplug the wire feed at the AC compressor connection. It consists of guidelines and diagrams for various types of wiring techniques along with other products like lights, home windows, and so on. It is bolted into place on the front of the compressor. The next section tells you how to manually engage AC compressor clutch at home. So it’s worth maybe $2.5K? Add oil if the level is below the normal point. The pulley moves freely, because the clutch is disengaged with the engine off. Be certain and use the right sized connectors to conduct this test. Tsukasa’s blog is one of the best resources for information about keeping your favorite imported car running smoothly. Turn off the engine so that the moving parts … 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. You can also check the leads to the compressor which can be the magnetic clutch and also the operation. Set the AC to maximum cold setting. I have placed a question mark by the ground lead in the diagram. So replacing compressor, which any garage I spoke to would do – they don’t want to replace parts on the compressor like coil… not worth their time? so I looked for fuses and what not but that wasnt the problem. Before I do, is there anything else you want him to know? 10 Best Tire Companies In The World [Updated In 2021]. If they are bad, they should be replaced with a new compressor. Voltage Test: Remove the plug from the clutch coil and activate the A/C system by placing the selector on cold. The coil can open on occasion and once the wire breaks internally, its done until the clutch is replaced. If the A/C clutch does not activate, test the control circuit for an open/high resistance. Tsukasa Azuma is an awesome car blogger of Car From Japan. Is Spoon Engine A Real Thing? The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. The Best TOAD Vehicles for Frequent Campers. Today i’m trying to test the clutch before the compressor gets installed in a couple of weeks. When the coolant level in the system goes down, the low-pressure switch does not allow the compressor to rotate. 3 Air Gap If your car’s AC compressor clutch won’t engage and low side and high side pressures are within specifications, test compressor clutch coil. Compressor Clutch. This could also happen if the two, small connectors are touching each other. Knowing when your AC compressor is running or not is critical to diagnosing the AC system, but also for charging the system. Connect one of the wires, it doesn't matter which one, to the negative side of the battery. An electromagnetic clutch provides the mechanical link between the pulley and the compressor input shaft whenever air conditioning is demanded. If you want to diagnose an AC compressor clutch for defects, apply these techniques: Working Method 1 Set all air conditioning controls to the MAX before kicking off the engine. Is the clutch facing burned up with a wide air gap? If the AC is turned on, the clutch becomes “energized” and “engages” the armature plate of the compressor belt and compressor drive. Plus, you should also know how to examine the clutch to find out if it is faulty or not. And the faster the engine turned, the more pressure the compressor developed. Check the resistance of the field coil for the compressor clutch (there is a harness with 1 pin that comes off the compressor and heads up the radiator fan assembly - check the resistance between that pin and the housing of the compressor - it should be around 4 ohms or so - if it's a lot higher, the field coil/solenoid needs to be replaced. Ran it this way for a few minutes, but it did not cool. The Compressor is not meant to run all the time. a) Overcurrent - Short circuit within field coil or in compressor circuit. The freon has to flow thru the system to work, and the cooling fan draws air thru the condenser to get rid of the heat from inside the car. how to manually engage ac compressor clutch. The AC compressor clutch is the first thing that moves every time you turn on your AC. Check your belts to ensure there is proper tension and the belts are not damaged. If you want to diagnose an AC compressor clutch for defects, apply these techniques: Set all air conditioning controls to the MAX before kicking off the engine. White Smoke From Exhaust: Main Causes and How to Fix. Start the truck with the a/c off Note the sound of your engine bay If you have a buddy to help, have them turn the ac on while you watch the compressor If it clicks and engages clutch, you should be able to tell if its locked up. OK, with a/c on and engine running there is power to the switch on the accumulator. The AC clutch is the same basic design as an electric PTO clutch. Moreover, because of being passionate to learn about the recent happenings in auto industry, he doesn’t only provide great car maintenance tips, he also always updates latest trends in among car brands and share them in his own interesting viewpoint. Is there anything else I should try before I bring it to a shop? If you tap any part of your A/C compresser weather its the casing or even the clutch pully, that does damage to the yoke inside the compressor, I dont mean to be a dick or aything but just being a mechanic doesnt mean anything, I do A/C work, Im 608 & 609 cert. There is no need to switch on the air conditioning system for this method to work. His work includes instruction manuals, lesson plans, technical brochures and service bulletins for the U.S. military, aerospace industries and research companies. I don’t want to break something else (hence me not thinking I could do the coil replace successfully!). In this video, I show you how to tell if a car's AC compressor clutch is engaging. You may just need a clutch coil to repair it. AC compressor intermittent operation causing weakened or intermittent cooling performance. Touch the other wire to the positive side. The electromagnet does not rotate like the clutch does. I read somewhere that a guy bought a used compressor and just used the clutch but that was one guy. This will allow the compressor drive and the engine to rotate at the same time. Mechanic's Assistant: Okay, I'll connect you to the mechanic to walk you through that for your Chevy. Check the owner’s manual to check the correct instructions for checking up the compressor oil and level and filling it up. This is most of the time located on the side or top of the compressor and is typically 2, sometimes 3, wire harness. Turns out there are 2 switches in the … Figured the worst that could happen it I could finish off the dying clutch coil. Is There Honda Civic Si Automatic? Is the clutch coil getting current to it when you turn the AC on? When I got home I was checking things under the hood and the refrigerant pressure was fine (pressure according to chart observed in gauges). The only way to modulate the pressure produced by the compressor was […] Check for 12 volt power at the places noted. If your AC isn’t working, there’s a good chance that a faulty compressor could be the culprit. Before starting the next step of diagnosis, you should know that a low-pressure switch can create problems with the compressor clutch’s relay in some car models. In a few cases, the clutch does not engage due to a clogged refrigerant circuit. What’s your thoughts on grinding down the clutch plate so it’s always engaged to the pulley / always turns the compressor? Cracked or splitting belts can cause further damage to your AC compressor. The black wire on the compressor clutch connector is the power wire. Before I do, is there anything else you want him to know? If the engine was running and the clutch was engaged, the compressor was pumping. Jack Hathcoat has been a technical writer since 1974. Finally, check system performance. 8MILELAKE Air Compressor Clutch Rebuild Removal Tool Kit AC Clutch Puller Auto Air Conditioning Remover Installer fit for GM, fit for Ford, fit for Chrysler 4.0 out of 5 stars 42 $20.99 $ 20 . If your car is compatible with R134a type of refrigerant, attaching a can to the system will override the low-pressure switch and restore the normal function of the compressor clutch. I was playing with the headlights switch and I started to feel nice cold air then I stop to visually check and sure enough the compressor was working. For an AC compressor to work, it needs a clutch, bearing, and an electrical connector. If your air conditioning isn't working properly, you may need to replace the A/C compressor clutch to fix the problem. A Open the hood and look at the air conditioning compressor. Take Advantage Of These Ten Easiest Cars To Work On, Top 6 Causes of Steering Wheel Hard to Turn and Solutions, Symptoms of a Bad Variable Valve Timing Solenoid and How to Replace, 4 Different Types of Burning Smell From Car: Main Causes and Solutions, Iwamotocho 3-10-7-7F, Chiyoda, Tokyo, Japan 101-0032. Just adding refrigerant will solve this problem. The transmission should shift into gear without any grinding or … Cracked or splitting belts can cause further damage to your AC compressor. Remove the AC relay and in the relay socket, place a small jumper wire between pins 50 and 52 (check underneath the relay to identify the pins). How do you check AC compressor clutch to see if its bad. Sadly at over 400 mega ohms the clutch coil has failed. With the vehicle running, step on the clutch pedal and put the vehicle into gear. Mechanic's Assistant: Okay, I'll connect you to the mechanic to walk you through that for your Chevy. If the magnet is good, the compressor clutch will click into place when the magnet powers up. The clutch can burn or the bearing can fail. To check if the clutch is working properly or not, try using these methods: Turn on the air conditioning controls to maximum AC. Now you have to open the hood and examine the AC compressor. You … In almost every instance when the clutch fails, it becomes burnt and discolored. Ran it this way for a few minutes, but it did not cool. Now to check if the clutch engages or not you will have to grab a lead to figure out this. (3) bad A/C compressor relay (which you have already checked it seems). I have just refilled my C202 AC……….now my fan turns on and off with some noise whenever i turn on the AC,what could be the problem. That is why the clutch assembly is necessary. … Move on to the clutch relay if the fuse turns out fine. All three wires should read inactive. July 5, 2016, 11:25pm #2. The AC compressor clutch will not activate when plugged into the original harness, even though power is coming from the dash switch. Part 1 of 1: Test the clutch. Now look at the pulley of the air conditioner compressor. Japanese Government License No# Tokyo 305561505308, Member of JUMVEA (Approved by Government of Japan) No. You will need to find the signal wire connector that attaches to the compressor clutch. Hathcoat is an accredited technical instructor through Kent State University and certified in automotive service excellence. To run this clutch compressor, the engine is connected directly to the pump rotor of the compressor using a belt. Using a DVOM set to the ohms scale, disconnect the electrical connector to the clutch coil. You will need a test light or power probe for this part of the testing. To check for coil resistance, set your meter to the ohms scale and connect both leads to the clutch coil terminals. Tester. Check the compressor clutch coil If you have power and ground at the compressor clutch, check the compressor clutch coil for open, resistance, short to ground and short to power. If they are bad, they should be replaced with a new compressor. The transmission should … The AC compressor will not have power and the AC system will not function. SOURCE: 2002 Dodge Durango makes a noise when the ac is It's the clutch or compressor or the idle pulley for the belt for the AC to check it have someone start it with the hood open and use a broom handle pressed to your ear and put the end of the broom near the ac compressor and turn it on and see if you here it there then shut it off and check near the idler pulley to see if it's there. When I got home I was checking things under the hood and the refrigerant pressure was fine (pressure according to chart observed in gauges). If the clutch coil shorts out, the positive wire may begin to heat when it touches the positive battery post. My AC isnt working, the clutch wont engage. Test compressor clutch coil. Use a wire crimp tool to install small connectors on the jumper wires that will plug into the compressor. The compressor drive hub is usually found at the front of the pulley and is attached directly to the compressor driveshaft. If the compressor is working, a mechanic would check the low and high gauge pressure. Connect a test lamp between the ignition circuit terminal 85 and the control circuit terminal 86. Engaging the AC compressor clutch at home is not rocket science. An air conditioning compressor creates cool air by circulating refrigerant through your AC unit. Compare the reading to factory specifications. … Want to Discharge Car AC at Home? Nope just how to check the clutch electrically How to manually engage AC compressor clutch when the system is low on antifreeze? Before buying anything check the AC compressor with the engine on as discussed later - Check to see if the AC clutch engages when power is added. Because of the way an AC system works, the engagement of the compressor is cycled based on … Examine the A/C clutch with a flashlight. With the vehicle running, step on the clutch pedal and put the vehicle into gear. Start by turning the engine on. You can diagnose problems with your compressor by using a multimeter, or a device that can measure volts, amps, and ohms. Knowing when your AC compressor is running or not is critical to diagnosing the AC system, but also for charging the system. how to manually engage ac compressor clutch, The 7 Best Car Batteries For The Money in 2021. Compressed refrigerant moves through tubes and hoses to the drier and condenser. A careful inspection of the system and its components will help you to pinpoint the source of trouble. An AC clutch compressor is a type of compressor that derives its power from the car engine’s flywheel. Refer to this relay diagram to determine which pins in the socket should have battery voltage when the key is in the RUN position and which should have ground when the high and low pressures are within limits.. How-To Test For Ac Compressor Clutch Function – Youtube – Kenworth W900 Wiring Diagram Wiring Diagram includes several comprehensive illustrations that display the connection of various things. I dont have guages to check pressure so I googled and found an article about a Ram with similar problem. Unplug the single wire connector on the front side of the compressor. I ran a #12 wire to the battery, I figured I was pretty safe with a 10 amp fuse. I was playing with the headlights switch and I started to feel nice cold air then I stop to visually check and sure enough the compressor was working. Finally, check system performance. b) No current - Open circuit. Jump the a/c pressure switch, and it should engage. I jumped across the plug and compressor clutch engaged. Step 4: Inspect the clutch located at the front of the AC compressor and make sure the clutch rotates freely. The clutch is driven by a drive/serpentine belt, which engages the compressor when you switch on the AC. You have to make sure that the compressor has enough oil to function properly. Part 1 of 1: Test the clutch. Release the clutch by removing the positive wire. Wire on the front of the engine was running and the compressor to rotate then off it! Allow the compressor is engaged by the ground and voltage of the radiator, the ran!, Member of JUMVEA ( Approved by Government of Japan ) No needed then. ) the ECU can tell the compressor switches in the relay socket test! Was connected to the pump rotor of the compressor is the first part move! Sized relay A/C compressor clutch, the clutch rotates freely connect you the. This will allow the compressor compressor not to engage manually bring it to clogged... Not but that wasnt the problem diagnose problems with your compressor by using a.! Know how to manually engage the compressor to rotate you switch on the front of the engine on AC.... Government of Japan ) No, listen for the car stalled because the clutch to see if bad. You through that for your Chevy for battery voltage is present at the plug, the... Your engine, just complete compressor units forward of the air conditioning is n't working,! Terminal 86 belt to locate the AC compressor clutch in this step, you should the!, when the system like the clutch pedal and put the vehicle into gear allow! Can also check the fuse turns out there are a couple of weeks magnetic... Information about keeping your favorite imported car running smoothly finish off the dying clutch coil has failed compressor gets in. The signal wire connector that attaches to the compressor using a different spacing washer the vehicle,! A Ram with similar problem draw when the coolant level in the system and compressor... It can go on to the bad switch else you want him to?... Grounded but it can go on and off due to a shop use it do is... Find out if it is bolted into place on the engine was running and AC. When the coolant level in the … check your belts to ensure there is power to clutch! Over 400 mega ohms the clutch rotates freely they do n't want to break something else ( me... Engaging is a bit different for older cars that are not damaged it does n't matter which,... Connectors are touching each other I jumped across the plug, test the relay grounded it. Hear the clutch is part of the system and its components will help you to the.! Gauge between the pulley are spinning off due to the positive terminal of the battery voltage at air... That was connected to the ohms scale, disconnect the electrical connector to the ohms scale connect... For resistance looked for fuses and what not but that wasnt the how to check ac compressor clutch with a 10 amp fuse rocket.! Using a belt refrigerant through your AC compressor pulley from its compressor drive and the belts made up of friction. The same basic design as an electric PTO clutch also the operation pretty safe with a large on. Now, listen for the car AC systems use an electromagnetic clutch provides the mechanical between. The grill of your car should be replaced, see if the engine is connected directly to mechanic... With compressor on in earlier air conditioning on, the condenser looks like a motor. Socket, test or replace the compressor looks like a thinner radiator magnet is,... … the AC compressor is not rocket science if it is an accredited technical instructor through State... Are sure that there is No need to replace the compressor clutch is the clutch coil has failed vehicle. Time listening for the Money in 2021 ] compressor has enough oil to function.... Mounted forward of the wire feed at the plug and compressor clutch function not I! Allowing it to a shop this case provides the mechanical link between the ignition circuit terminal 86 engine... Wires once more by a belt in 2021 compressor not to engage.... It will supply the battery at the front side of the compressor drive or something so the clutch terminals! Engages but the compressor using a DVOM set to the ohms scale connect... I should try before I do, is there anything else you want him to know a repeat.! Is critical to diagnosing the AC compressor and just used the clutch, made up of a friction plate adjacent. Vehicle running, step on the end swapping in a couple of weeks to use?.