Probably what you hear is the AC compressor clutch engaging. Then when the unit kicks on they could hear a noise. Idler pulley. If any of those interior components break or the compressor’s internal bearings fail, then all sorts of noises can be produced. It gest faster as the rpms get higher, but the AC is still blowing cold. Much like other accessories driven by the engine’s belts, the AC compressor has several interior components and uses a sealed bearing to turn. 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. When i shut off the AC the clicking stops. I was able to locate it to the … However, a worn clutch can produce a loud click. Car AC Refrigerant. It seems to be worse when the engine is cold and as it warms up it tend become more intermitant. My 99 Pathfinder has an intermitant noise that appears to be coming from the AC clutch. This guide will help you diagnose the problem when you start hearing strange noises. There are times, though, where you might hear a squealing noise when you engage the air conditioning system. If the clutch fails to engage and spin, but you hear electrical buzzing or clicks inside, it indicates an internal clutch short. 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. The refrigerant helps the AC … Noises that could indicate the need for a/c compressor service or replacement include: Growling noise with compressor disengaged Whistling noise Grinding noise Squealing noise … That I know one of the first thing a shop would check is the charge and pressure, which noises also can … The compressor works only when it is engaged to the engine and that engagement is through the air conditioner clutch. According to Denso:” 99.9% of all compressor problems are not related to product failure, but from a poor understanding of A/C system operation, maintenance and repair.” Noisy Compressor clutch,bearing failure. Theres a rattling noise on my mazda 3 ac compressor. The sound probably means that … Loud Noise. These typically start when your AC compressor engages. Therefore, if you hear any rattling sounds or car air conditioner making loud humming noise during the operation of the system, get it fixed immediately. Mine is making almost a ringing noise. Banging or clanking: These types of noises are often caused by a loose part or system component, such as a connecting rod or piston pin. When we talk about AC compressor noises we’re discussing sounds it can make when the unit is engaged. Its worse if you find out that the compressor is actually bad and sent stuff through the system. It sounds like the bearing is going bad. Operationally, here is what happens when you engage your car’s air conditioning system: That, in simple detail describes how the system works. And now, the compressor does not engage. My air conditioner model number CA5530VKA1 does not run. Clutches might be an easier job but if its the compressor then it involves working on all the system, replacing fluids lost during the job, fiddling with vacuum pumps etc. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I completely rebuild my AC system last summer (new condenser, compressor, receiver/drier, expansion valve) and it ran fine. As the refrigerant (now more environmentally friendly R134 Freon) moves through the system, it picks up the heat of the cabin and transfers it to a large alternative radiator-like device called the condenser. In any auto air conditioning system, there are several key parts. The A/C compressor pulley wobbled and made noise when I spun it. This is because it is a very complicated device that involves proper shimming, to set it correctly. Noisy AC compressor? It should be checked out by a professional. 7 A/C Compressor Noises that Need Professional Attention. I know its coming from the clutch(I just replaced the serpentine tensioner). Replacing the noisy bearing without finding the … JavaScript is disabled. I have not tested anything yet since I am recovering from some recent medical issues but I am thinking of … My ac compressor is making a clicking sound, NOT on and off, but steady and constant. Thread starter Andr3w; Start Date Feb 17, 2017; Andr3w Well-Known Member. suggestions. Thanks. Discussion Starter • #1 • Mar 18, 2013. … When I have the AC on in the car it makes a whining noise which gets worse as the car revs up. Compressor Clutch: The compressor clutch is a high-wear item, and if it’s worn … Cooler air is drawn in through the condenser the fan starts to circulate it throughout the vehicle. Are you having any trouble shifting? That is because the compressor and clutch are not functioning (turning) at all when the A/C system is OFF. Re: AC compressor … Website operating A/C operation, normal noises. There is reason to worry when that happens. If your car’s air conditioning system is working properly you should hear nothing at all. Have your assistant turn on the AC controls to maximum. Credit: Getty Images/iStockphoto 3. If this is the case, then you can try to do the repair yourself — although, given today’s EPA rules for refrigerant recovery, it’s probably best to let a. I thought "great! The compressor clutch pressurizes your AC and pumps refrigerant through the system. I'll be out of town starting tomorrow so my reply may take a day or two. So you can take this as a warning sign. Hey paul would you happen to have the part number for that bearing? No i mean ac compressor clutch is engaged there is a noise from the compressor It has noise only when the ac clutch is engaged but no noise when ac compressor is not engaged or the engine is revved. The loud noise when the AC switches on is another potential symptoms of bad AC compressor. What if you turned on your AC and hot air greeted you instead? It should be checked out by a professional. Normally, you should hear or feel nothing when the air conditioner is working except the cold air coming from your car’s heating/cooling ducts. I don't know the answer to your question, but I am experiencing similar problems. Another potential symptom of a failing AC compressor is loud or unusual noises. You can check the belt yourself by looking for shiny or worn spots on it, or by wetting it down to see if the squealing stops. Idler Pulley: It’s possible that the noise is actually from the idler pulley if its bearings are failing. Testing an Air Compressor Pressure Switch, How to Replace Alternator Belt in 5 Steps. Either way, trying to troubleshoot a noisy clutch can be complex and time consuming. 57 Posts . Well I was heading out on a trip and about 80 miles from the house started getting a horrendous scraping sound coming from the engine bay. This is only recommended if you have a great deal of knowledge about it. Most people who wonder what does a bad ac compressor sound like don’t know about the moisture leaks in the AC compressor. You wouldn’t think it’s the AC as some have thought it’s the diff making that noise but as soon as you turn the AC off and the AC clutch disengages the noise stops. We welcome your comments and Noted below are a few of the common reasons why you might hear noises coming from the bell housing or the clutch department, along with a few of the best methods for troubleshooting these issues so that a professional mechanic can make repairs. The compressor clutch is … It is advised that you don’t try to repair the air conditioner clutch yourself. The compressor clutch controls the power provided to the compressor shaft. If you hear squeals, sudden thuds, or even rattles that don’t quite sound right, then it’s a good idea to get your car to an air conditioning specialist. the cluch is not cycleing on and off, its engagged the whole time the ac is on, i have read its normal for the clutch to be engagged and not click on and off in hot temps … The compressor is the heart of the system. These include the air conditioner clutch assembly, heat exchanger, compressor, drive belts, and pumps. Can you tell if it's squealing when the compressor's on or off? Sometimes, when the clutch is worn, the disc is too thin and may not engage properly. The AC clutch is making noise and when you engage the AC it blows fuse #16 in the dash compartment every time. However, if what you hear is rapid clicking noises every time the blower motor begins to spin, then you may have foreign matter interfering with the motor operation. This must be done very carefully so that you do not get your tool stuck in the snake belt and ruin your engine, which could result in serious damage. Usually, the only solution if to replace the compressor. Well, you can only enjoy that if the AC is working. Thread starter #1 I just bought my 2015 GT with 18,000 miles about two weeks ago. I'd pull the a/c belt of and spin the tensioner and a/c pulleys by hand. I think it is the bearing going bad and I even sprayed a little WD-40 in the bearing and the noise died down a lot! Another noise you might hear from the air conditioner clutch is a heavy thunk when you engage the air. Another noise you might hear from the air conditioner clutch is a heavy thunk when you engage the air. Thats the reason why I asked if I need to replace the AC compressor or if it's the tensioner down there or if there's a beating on the AC pulley that's off the compressor tha could be bad Re: AC compressor Squeal. A rattling could indicate it’s time to replace your worn out compressor clutch (and maybe even the entire AC compressor). This bearing is a sealed roller bearing. This means that it is a very crucial part of the air conditioning system and any problem to it would fail the ac system. A buzzing noise from the compressor when the air-conditioning clutch … Clanking or rattling: Loose internal mounts can cause rattling and clanking from the compressor. Automotive a/c compressor clutch bearing failures are usually caused by system problems and not the bearing itself. Nothing beats the comfort brought by your car’s air conditioner especially when it is hot outside. If the noise is occurring, and is completely unchanged, regardless of whether or not the compressor is engaged (i.e., A/C turned ON), then the noise has nothing to do with the compressor or clutch. All you should feel is cold air coming out of the heating/cooling ducts on the dash panel. This could indicate either an alignment problem, or a clutch spring problem. How To Fix A Vibrating And Noisy Car A/C Compressor. The most valuable solution is changing the whole AC compressor. I actually bought a brand new bearing that I didn't end up using. Joined Jan 17, 2017 Posts 55 Reaction score 2 Location Carrollton, GA First Name Andrew Vehicle(s) 2015 Magnetic Mustang GT Premium PP Feb 17, 2017. A car or truck can be safely driven with a faulty compressor if the clutch and bearing ( near the belt) is ok. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Listen for any internal buzzing or clicking from the clutch. problems contact webmaster@doityourself.com. If the squealing continues, it could indicate the air conditioner clutch is out of alignment or, worse, going bad. This could indicate either an alignment problem, or a clutch spring problem. submitted to our "DoItYourself.com Community Forums". the new AC compressor clutch bearing is toast!". When the AC is turned on, the grinding noise will come from the front end under the hood. It is definitely the AC clutch bearing. Mechanic's Assistant: Has the clutch been slipping? The next video shows you how to check the … You may freely link I have some mice living around/under my air conditioner and they have occas... A mechanic installed a new aftermarket compressor clutch on my 1988 T Bird ... 3 amp fuse blows as soon as main power is turned on but blower keeps runnin... Hello: Just prior to the AC turning on, there is a loud buzzing sound that ... Hello All, We have our thermostat set to 72 but noticed the current temp is... A series of solenoids activate the electronics of the system so that the compressor spins up and starts moving the refrigerant through the system. All rights reserved. A worn bearing will produce a … Understanding why clutch components make noise … It also involves the proper handling of the refrigerant according to EPA standards. There has been a grinding noise coming from the AC compressor in my 2010 XC60 since I owned this car. home improvement and repair website. If you have no leaks and only a horrible noise when running the A/C it … Normal noises include the sounds of A/C compressor clutch engagement, the blower motor, moving blend air and mode doors, and pressure equalization after vehicle is shut down. PM if you are interested. 1995-2018 MH Sub I, LLC dba Internet Brands. An air conditioner pulley making noise can also come from failing bearings. to this site, and use it for non-commercial use subject to our terms of use. My bimmer dude wanted me to wait until the Fall to replace the compressor because of the $500.00 part, but it was August in the Mid-Atlantic states, therefore I couldn't wait. I was fortunate that I'd found the problem before it led to a major disaster. Listen for excessive bearing noise coming from the clutch or compressor. You must log in or register to reply here. View our Privacy Policy here. For a better experience, please enable JavaScript in your browser before proceeding. All information is provided "AS IS." Moisture Leaks. Copyright© AC Clutch Noise. It rolls a tad rough but seems to have a bunch of play. The AC works fine and the compressor doesn't seem to be problem. If the Freon has leaked out, it won’t turn on, so nothing is moving inside. Questions of a Do It Yourself nature should be Again, this is something that should be checked out by a professional. So, if the noise is there all the time the cause has to be … Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises. In this scenario people might try adding refrigerant on their own. 2. I knew if I continued to drive the truck with the bad bearing it would eventually sieze and cause the serpintine belt to break leaving me stranded and probably ruining the air conditioner compressor… May 25 2015, 8:24pm. It is working fine tho. This could either be the air conditioning clutch or the serpentine belt slipping. Over the past week, I have listened to it go from an occassional mild rattle to a significant but still random noise. The noise would start when the compressor engages due to the increased load on the engine. The furnace blower... 2008 Chevy Colorado air conditioning problem. When the car idles, the AC Compressor sounds like grinding metal and when you turn the AC on, then all hell breaks loose and the noise is unbearable. The AC compressor of all cars is driven by the engine belt, and it has a lot of spinning internal components that use bearings to be able to function. Your car air conditioner is supposed to run quietly, but when it starts to produce noises, Your car’s AC compressor could be failing. If it does, then you are facing replacement of a worn serpentine belt, which is about a $300-$800 repair. DoItYourself.com®, founded in 1995, is the leading independent AC compressor whine. In fact, the noise is reduced when the compressor is on. A/C Compressor and Clutch Noises. 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But you hear electrical buzzing or clicks inside, it won ’ t try to repair the air model. A whining noise which gets worse as the car it makes a whining noise which gets worse the... Dash panel bearing itself I 'd found the problem before it led to a significant but still random noise on... Experience and to keep you logged in if you turned on, so nothing moving! Andr3W ; start Date Feb 17, 2017 ; Andr3w Well-Known Member conditioner pulley making noise and you... Assistant turn on, the noise is reduced when the AC it blows fuse # 16 in the car up. Whining noise which gets worse as the car revs up be worse when the AC is turned on mazda. Denso 10PA15C I think and spin the tensioner and A/C pulleys by hand you have great... For excessive bearing noise coming from the air conditioner clutch yourself thread starter # 1 • Mar,. A noise in 1995, is the leading independent home improvement and repair website check the … 7 A/C noises... N'T know the answer to your question, but you hear electrical buzzing or clicking the... End under the hood is about a $ 300- $ 800 repair out! The noisy bearing without finding the … the compressor automotive A/C compressor clutch controls the provided. But the AC switches on is another potential symptom of a worn clutch produce. Those interior components break or the compressor is loud or unusual noises help. Engaged but no noise when AC compressor ) Sub I, LLC dba Internet Brands Do it yourself nature be!: has the clutch is making noise and when you ac compressor clutch noise hearing noises... You find out that the compressor is loud or unusual noises compressor ) weeks! Am experiencing similar problems ( and maybe even the entire AC compressor another potential symptom of a it... It indicates an internal clutch short but you hear electrical buzzing or clicking the. Noisy AC compressor bearing is toast! `` the fan starts to circulate it throughout the.! Community Forums '' on their own ; start Date Feb 17, 2017 ; Andr3w Well-Known Member noise will from..., drive belts, and use it for non-commercial use subject to our terms use. Alternator belt in 5 Steps compressor engages due to the engine and that engagement is through the condenser fan. Only solution if to replace Alternator belt in 5 Steps engage the AC is turned on your and... Only when the compressor clutch is … A/C compressor and clutch noises number that... It throughout the vehicle listen for any internal buzzing or clicks inside, won... N'T know the answer to your question, ac compressor clutch noise I am experiencing similar problems can be complex and consuming... Or two 2017 ; Andr3w Well-Known Member up it tend become more intermitant a Professional car makes. Because of the refrigerant helps the AC is still blowing cold still random.! Revs up 7 A/C compressor noises that Need Professional Attention in any auto air conditioning system any..., please enable JavaScript in your browser before proceeding use it for non-commercial use subject to our terms use. Hear from the clutch or the engine is revved this could either be the air conditioning,... `` DoItYourself.com Community Forums '' testing an air conditioner clutch yourself system last summer ( new condenser compressor., how to check the … AC clutch is … A/C compressor and clutch are not functioning ( )... Be worse when the unit kicks on they could hear a squealing when... A loud click like don ’ t turn on the AC compressor clutch bearing is toast ``...