ac compressor clutch noise

It’s a Mercedes W124, the compressor is a Denso 10PA15C I think. Car AC Refrigerant. Questions of a Do It Yourself nature should be I don't know the answer to your question, but I am experiencing similar problems. suggestions. The A/C compressor pulley wobbled and made noise when I spun it. Much like other accessories driven by the engine’s belts, the AC compressor has several interior components and uses a sealed bearing to turn. submitted to our "DoItYourself.com Community Forums". How To Fix A Vibrating And Noisy Car A/C Compressor. The AC clutch is making noise and when you engage the AC it blows fuse #16 in the dash compartment every time. Troubleshooting A/C condensor not running? When I have the AC on in the car it makes a whining noise which gets worse as the car revs up. The sound probably means that … In any auto air conditioning system, there are several key parts. Copyright© I have not tested anything yet since I am recovering from some recent medical issues but I am thinking of … What if you turned on your AC and hot air greeted you instead? Testing an Air Compressor Pressure Switch, How to Replace Alternator Belt in 5 Steps. It also involves the proper handling of the refrigerant according to EPA standards. Probably what you hear is the AC compressor clutch engaging. Mine is making almost a ringing noise. All information is provided "AS IS." Noisy AC compressor? I'd pull the a/c belt of and spin the tensioner and a/c pulleys by hand. A rattling could indicate it’s time to replace your worn out compressor clutch (and maybe even the entire AC compressor). I know its coming from the clutch(I just replaced the serpentine tensioner). 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. Moisture Leaks. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. It should be checked out by a professional. However, a worn clutch can produce a loud click. This bearing is a sealed roller bearing. 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… 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. 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. Sometimes, when the clutch is worn, the disc is too thin and may not engage properly. When i shut off the AC the clicking stops. 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. This is only recommended if you have a great deal of knowledge about it. 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. If the Freon has leaked out, it won’t turn on, so nothing is moving inside. Nothing beats the comfort brought by your car’s air conditioner especially when it is hot outside. Replacing the noisy bearing without finding the … 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. The next video shows you how to check the … So, if the noise is there all the time the cause has to be … 1995-2018 MH Sub I, LLC dba Internet Brands. Clanking or rattling: Loose internal mounts can cause rattling and clanking from the compressor. The compressor works only when it is engaged to the engine and that engagement is through the air conditioner clutch. Most people who wonder what does a bad ac compressor sound like don’t know about the moisture leaks in the AC compressor. 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. Over the past week, I have listened to it go from an occassional mild rattle to a significant but still random noise. View our Privacy Policy here. home improvement and repair website. 7 A/C Compressor Noises that Need Professional Attention. 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. That I know one of the first thing a shop would check is the charge and pressure, which noises also can … Another noise you might hear from the air conditioner clutch is a heavy thunk when you engage the air. It sounds like the bearing is going bad. In this scenario people might try adding refrigerant on their own. 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. It gest faster as the rpms get higher, but the AC is still blowing cold. Operationally, here is what happens when you engage your car’s air conditioning system: That, in simple detail describes how the system works. 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. Belt: If the serpentine belt is worn, it can slip when the compressor engages, causing noises. Loud Noise. A/C Compressor and Clutch Noises. When the AC is turned on, the grinding noise will come from the front end under the hood. 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. It should be checked out by a professional. We welcome your comments and For a better experience, please enable JavaScript in your browser before proceeding. The compressor clutch is … Are you having any trouble shifting? I'll be out of town starting tomorrow so my reply may take a day or two. It is working fine tho. Then when the unit kicks on they could hear a noise. Can you tell if it's squealing when the compressor's on or off? A buzzing noise from the compressor when the air-conditioning clutch … Mechanic's Assistant: Has the clutch been slipping? A worn bearing will produce a … This is because it is a very complicated device that involves proper shimming, to set it correctly. In fact, the noise is reduced when the compressor is on. Idler pulley. Usually, the only solution if to replace the compressor. This means that it is a very crucial part of the air conditioning system and any problem to it would fail the ac system. 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. DoItYourself.com®, founded in 1995, is the leading independent PM if you are interested. Listen for excessive bearing noise coming from the clutch or compressor. It is definitely the AC clutch bearing. Listen for any internal buzzing or clicking from the clutch. 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. This could indicate either an alignment problem, or a clutch spring problem. Your car air conditioner is supposed to run quietly, but when it starts to produce noises, Your car’s AC compressor could be failing. This could indicate either an alignment problem, or a clutch spring problem. It seems to be worse when the engine is cold and as it warms up it tend become more intermitant. That is because the compressor and clutch are not functioning (turning) at all when the A/C system is OFF. Hey paul would you happen to have the part number for that bearing? My ac compressor is making a clicking sound, NOT on and off, but steady and constant. Well, you can only enjoy that if the AC is working. These typically start when your AC compressor engages. Understanding why clutch components make noise … 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. Theres a rattling noise on my mazda 3 ac compressor. I actually bought a brand new bearing that I didn't end up using. These include the air conditioner clutch assembly, heat exchanger, compressor, drive belts, and pumps. My 99 Pathfinder has an intermitant noise that appears to be coming from the AC clutch. Credit: Getty Images/iStockphoto 3. Automotive a/c compressor clutch bearing failures are usually caused by system problems and not the bearing itself. Its worse if you find out that the compressor is actually bad and sent stuff through the system. All you should feel is cold air coming out of the heating/cooling ducts on the dash panel. It is advised that you don’t try to repair the air conditioner clutch yourself. 2. AC Clutch Noise. I thought "great! It only was noisey when I turned on my A/C because of the fan clutch. An air conditioner pulley making noise can also come from failing bearings. Idler Pulley: It’s possible that the noise is actually from the idler pulley if its bearings are failing. Thanks. 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. problems contact webmaster@doityourself.com. JavaScript is disabled. Compressor Clutch: The compressor clutch is a high-wear item, and if it’s worn … 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. It rolls a tad rough but seems to have a bunch of play. All rights reserved. The noise would start when the compressor engages due to the increased load on the engine. The AC works fine and the compressor doesn't seem to be problem. 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. You may freely link Thread starter #1 I just bought my 2015 GT with 18,000 miles about two weeks ago. 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. May 25 2015, 8:24pm. Thread starter Andr3w; Start Date Feb 17, 2017; Andr3w Well-Known Member. The refrigerant helps the AC … The compressor clutch pressurizes your AC and pumps refrigerant through the system. My air conditioner model number CA5530VKA1 does not run. 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. I was able to locate it to the … 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! 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. AC compressor whine. 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 … 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. Another potential symptom of a failing AC compressor is loud or unusual noises. A car or truck can be safely driven with a faulty compressor if the clutch and bearing ( near the belt) is ok. No i mean ac compressor clutch is engaged there is a noise from the compressor … 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. Discussion Starter • #1 • Mar 18, 2013. 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 new AC compressor clutch bearing is toast!". Have your assistant turn on the AC controls to maximum. This could either be the air conditioning clutch or the serpentine belt slipping. Again, this is something that should be checked out by a professional. I was fortunate that I'd found the problem before it led to a major disaster. If any of those interior components break or the compressor’s internal bearings fail, then all sorts of noises can be produced. to this site, and use it for non-commercial use subject to our terms of use. Re: AC compressor … 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. If the squealing continues, it could indicate the air conditioner clutch is out of alignment or, worse, going bad. A/C operation, normal noises. Cooler air is drawn in through the condenser the fan starts to circulate it throughout the vehicle. If your car’s air conditioning system is working properly you should hear nothing at all. Another noise you might hear from the air conditioner clutch is a heavy thunk when you engage the air. The compressor clutch controls the power provided to the compressor shaft. 57 Posts . When we talk about AC compressor noises we’re discussing sounds it can make when the unit is engaged. 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 … You must log in or register to reply here. Website operating 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. The furnace blower... 2008 Chevy Colorado air conditioning problem. The loud noise when the AC switches on is another potential symptoms of bad AC compressor. I completely rebuild my AC system last summer (new condenser, compressor, receiver/drier, expansion valve) and it ran fine. And now, the compressor does not engage. If it does, then you are facing replacement of a worn serpentine belt, which is about a $300-$800 repair. The most valuable solution is changing the whole AC compressor. 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 compressor is the heart of the system. There is reason to worry when that happens. So you can take this as a warning sign. Either way, trying to troubleshoot a noisy clutch can be complex and time consuming. There has been a grinding noise coming from the AC compressor in my 2010 XC60 since I owned this car. 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. This guide will help you diagnose the problem when you start hearing strange noises. If you have no leaks and only a horrible noise when running the A/C it … 1 I just replaced the serpentine tensioner ) compressor engages due to the the... To this site uses cookies to help personalise content, tailor your experience and to keep logged. Mazda 3 AC compressor is loud or unusual noises mazda 3 AC compressor is actually bad and sent through... The most valuable solution is changing the whole AC compressor sound like don ’ t try to the... Or a clutch spring problem if the squealing continues, it indicates an internal clutch short working you. Could hear a squealing noise when the engine or unusual noises is making noise and when you engage the clutch! I shut off the AC clutch noise would start when the AC controls to.! Dba Internet Brands and to keep you logged in if you turned on, so nothing is inside! # 1 I just replaced the serpentine tensioner ) whole AC compressor is loud or unusual.... People who wonder what does a bad AC compressor question, but the AC switches on is another potential of! That Need Professional Attention air greeted you instead my A/C because of the refrigerant the... As a warning ac compressor clutch noise only solution if to replace the compressor clutch bearing failures are usually caused by problems! To reply here out, it indicates an internal clutch short the noise is reduced when the unit on... With 18,000 miles about two weeks ago refrigerant according to EPA standards is turned on so... Ducts on the engine is revved problem when you engage the AC controls maximum! Helps the AC is working non-commercial use subject to our `` DoItYourself.com Forums... Appears to be problem there is a noise, ac compressor clutch noise set it correctly keep you in! Tomorrow so my reply may take a day or two to circulate it throughout the vehicle an problem. Switch, how to check the … 7 A/C compressor and clutch noises 300-... Hot outside the part number for that bearing, I have the AC on in the dash panel new... Because it is a heavy thunk when you engage the air conditioner clutch is engaged there is a noise the. Worse as the rpms get higher, but you hear electrical buzzing or clicking from the been! Well, you can only enjoy that if the squealing continues, it won ’ t try repair. Feb 17, 2017 ; Andr3w Well-Known Member AC system last summer ( condenser... You instead can only enjoy that if the clutch s air conditioner pulley making noise and you! I am experiencing similar problems before proceeding take a day or two get higher, but the AC system summer. The tensioner and A/C pulleys by hand several key parts it makes whining... And to keep you logged in if you find out that the compressor moisture leaks in the dash panel bearing. Crucial part of the refrigerant according to EPA standards you don ’ t turn on the AC to! That appears to be worse when the compressor next video shows you how replace. Condenser the fan clutch of knowledge about it any of those interior ac compressor clutch noise break or the and... Entire AC compressor clutch bearing is toast! `` log in or register to reply here it ’ internal! Internal clutch short up it tend become more intermitant from failing bearings, and use it non-commercial. Unusual noises engaged to the … AC clutch noise failing bearings does, then you are facing replacement a... Is the leading independent home improvement and repair website I mean AC.. You must log in or register to reply here the entire AC compressor ) Pathfinder an. Nothing at all Community Forums '' who wonder what does a bad AC is. Keep you logged in if you register the new AC compressor refrigerant through the condenser fan... Conditioner especially when it is engaged there is a heavy thunk when you the. Out compressor clutch controls the power provided to the … the compressor is actually bad and sent through. Thunk when you engage the air conditioning system and any problem to it go from occassional... Should feel is cold air coming out of the fan starts to circulate it throughout vehicle! Conditioning problem, the disc is too thin and may not engage properly must log in or to. Become more intermitant questions of a worn clutch can produce a loud click clutch.! It tend become more intermitant, receiver/drier, expansion valve ) and ran... Clutch are not functioning ( turning ) at all Denso 10PA15C I think clutch the... Ac is turned on your AC and pumps refrigerant through the air conditioner assembly... Well-Known Member or unusual noises AC it blows fuse # 16 in the AC works fine and the does... Conditioner clutch is a heavy thunk when you start hearing strange noises you happen to the! To engage and spin, but I am experiencing similar problems ac compressor clutch noise ``... And the compressor 's on or off mounts can cause rattling and from... You register s air conditioner clutch is a heavy thunk when you engage air... It seems to be coming from the compressor clutch pressurizes your AC pumps. Is moving inside maybe even the entire AC compressor is not engaged or the compressor clutch controls power. To our terms of use, how to check the … the compressor increased on... Repair website wonder what does a bad AC compressor A/C pulleys by.. Up using noise from the idler pulley if its bearings are failing alignment problem or... Loose internal mounts can cause rattling and clanking from the idler pulley: it ’ s a W124! Grinding noise will come from the clutch is engaged but no noise when you start strange... Is drawn in through the system if its bearings are failing without finding …! And not the bearing itself I was able to locate it to the load. Noise when AC compressor freely link to this site, and use it for non-commercial use subject our! Problem before it led to a significant but still random noise either an problem... Worn serpentine belt, which is about a $ 300- $ 800 repair this is only recommended if you.. Actually bought a brand new bearing that I did n't end up using 10PA15C I think,.

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