Ac Clutch Squealing

"" This problem can even occur with a new clutch if the cable is not correctly adjusted. My car has about 2200 miles. A typical AC compressor removal and installation diagram. When your air conditioning is switched off, the magnetic clutch isn't engaged and your compressor does not sping so you can still drive your truck if you don't have any oil or refrigerant in your air conditioning system. Had belts changed, same squeal. And Rod’s tech­nicians were heroes, fixing the truck properly without breaking the bank. When I was done I burnished it like the instructions said. Turn the AC compressor (center nut on the pulley face) by hand. I have a 2000 Grand Prix GTP. Your car's air conditioning is acting up, but you don't know what's wrong. Outdoor fan motors and indoor blower motors squeal loudly when they're going bad. A clutch that does not engage causes the compressor not to turn, making the entire air-conditioning assembly to fail. If a screeching or squealing noise heard when the A/C is engaged go to step 2. Hello everyone, My 2009 Wagon R (Petrol) makes kind of a squealing/whistling noise whenever i turn on the AC. Some fixes are minor and require little work. Check to see if the rubber bushing is sliding out of the ac clutch. (Please read feedback)The Clutch includes all parts needed to replace your old clutch. The dealer wants to replace the compressor, but here it is 35 degrees out and I can wait as it's quite a bit of money. Clutch pedal lubrication. Browse your favorite brands affordable prices free shipping on many items. 16 reviews of McCain's Auto Parts & Air Conditioning "I really like these guys a lot. Whining noise with AC. Clutch cycles off and on while idling but ac lights do not blink (remain steady) indicates the ac charge is low but the clutch is working OK. I installed a remanufactured AC compressor and the clutch makes noise when it is engaged. the two uppers are the same pn , the lower idler pully is different than the rest. This is a great idea So it's father's day, no parts fairy on sunday and the noisy idler pulley is driving me nuts. My 2001 Honda Accord EX V6, 67,800 miles, suddenly began to make loud squealing noises tonight about 1/2 mile before I got home while driving about 30 MPH. Photo and video filesizes should be less than 5MB. I could have saved a few bucks going with a different brand, but the cheap reman units were still over $200, so I figured I would just spend a lil more for an OEM one. i suspect my ac compressor is lacking lubricant so in this one we are. For AC Clutches & Compressors, shop Advance Auto Parts. These noises are usually any indication of a fault in the offing. Does this mean I have a bearing failure or a clutch failure?. 46 and they sell it for 26. The 2002 Toyota Camry has 1 problems reported for ac is making squealing noise on start-up. What's Causing That Smell in My Car? By Rick Popely. From my experience with a 1994 Chevy Truck with 350 V8 and AC, found the belt was old and slick with some cracks in the belt groves causing the belt to slip on the AC Compressormeaning the AC Compressor wasn't turning the same rpms as the othersalternator, crankshaft, etc. The fan clutch was a preferable repair from a cost standpoint. Now suddenly it looses charge within a few days and I've left it for many months now with no charge. 46 and they sell it for 26. Sam's Tri-County Automotive - Auto Repair Shop in North Ridgeville, OH 44039. Recently, I am hearing a squealing noise when the AC clutch engages (AC is working fine and blows very cold air). You can place your order online to buy parts spares for MX-5, Eunos Roadster Miata. i just bought a 1996 mitsubishi mirage S when i start up the car doesn't squeal. Despite what I think is less air flow, I still get plenty of heat and AC. If you have a situation where your car’s air conditioner compressor clutch doesn’t engage, try the troubleshooting techniques described here. Did not get a chance to try turning lights or AC on when driving. To diagnose this problem, set the emergency brake, start the engine and depress the clutch pedal. A fan blade or two may have broken. The squealing does not repeat as the compressor cycles on and off, so I suspect it's the clutch or bearing and once it warms up a little it gets quieter. I was told to make the air gap between the clutch and the pulley assembly between 20-30 thousands. Any issue, no matter how small, will have serious impacts on the vehicle's air conditioning, since the compressor pressurizes coolant and distributes it throughout the system. Not the AC clutch sticking - it is supposed to stick, the AC compressor has a problem, high internal friction, or the clutch is slipping. Before you take it to the professionals, here’s how to check the basics. When cold and damp outside, there is a high pitch squealing that sounds like bearings or shaft or clutch on the a/c. I am changing the AC Compressor, because the clutch is squealing loud as hell. So, questions are, is it just the clutch or is it the whole compressor? Can you even replace just the clutch? If I swap the whole compressor, when I hook everything back up, do I have to get a vacuum pump to pull a vacuum on the system to recharge it or does it do that on its own? I actually see they have an AC clutch bearing they sell. Hey everybody I got a good one for ya. About a month old. Looking for suggestions, I have a 2000 C5 and recently the a/c compressor started making a squealing noise when turned on. also the ac compressor belt tensioner. Is your AC unit leaking?. usually those high pitch squealing sounds are cause by a loose/slipping belt. I took it to a shop this morning and the guy said he thinks it's the PS bearings making a little noise when extra tension is put on them by the AC clutch closing, but that he thinks it's nothing to worry about, "just old car noise" as he put it. i just bought a 1996 mitsubishi mirage S when i start up the car doesn't squeal. Buy AC Compressor Clutch Bearing Replacement for NSK 35BD219DUM A/C: Release Bearings - Amazon. In the Green Book for HVAC, page 334, there is a modification to add just such a switch by replacing a liquid line and adding the. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. I bit the bullet and bought a new water pump, fan clutch, thermostat and radiator. If I rev the motor to like 4 grand then it'll go away for the time being. Also, slight squeal when running - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. I was able to do this on the vehicle without evacuating the freon gas, for a total outlay of less than $50. Thanks for your question about your air conditioning in your 2002 Nissan Frontier. its most likely done or on its way out. i just bought a 1996 mitsubishi mirage S when i start up the car doesn't squeal. 2001 Jeep Wrangler 4. High Quality Genuine & OEM parts. Practically everything has been changing the AC system except for the lines. Q: "I have noticed recently that when I reverse in my car I hear a squealing sound from my back tires. Looking for suggestions, I have a 2000 C5 and recently the a/c compressor started making a squealing noise when turned on. 0L fan blade assembly wi. How To Fix Your Squeaking/Screeching GM Blower Motor. A squeal at idle means your belt is too short, the tight belt squeals as it rubs on the bottom of the primary clutch. The sound has now progressed to being a squeal noise as well as a tad vibration. I am changing the AC Compressor, because the clutch is squealing loud as hell. It is worse in the morning on cold starts. I was in an accident a year ago and replaced the condenser and the dryer before have it vacuumed and refilled. The squealing noise raises and lowers when I press the gas pedal which makes me think it is the AC pulley but I am looking for another suggestion. 2001 Jeep Wrangler 4. The belt is smooth and shiny on the back so I was going to try new belt first. AC belt squealing. This is not a complete list of Service Bulletins for the Miata. The noise you hear is the clutch slipping. If so, try the troubleshooting techniques described here. For some time the A/C system has had a slow leak but lasted many months before needing recharge. Turn on the AC. AC blows ice cold, heat blows hot. I could turn it back on again, and the AC and it wouldn't squeal again for the duration that the engine stays on. It started last night at a red light as I put the car back in gear and started to move. Air Conditioning problem 2002 Lexus RX 300 6 cyl Front Wheel Drive Automatic When I first start up car there is a noise coming from the AC compressor or altenator or power steering pump it sounds like crickets but stops after engine has been running for about 20 minutes and will stop if rpms are above 2200. The Nissan Frontier is a mid-size truck. Common reasons why a car AC system makes a rattling noise is due to a failing AC compressor, worn serpentine belt, or worn out AC compressor clutch. This activates the clutch coil on the AC compressor. I replaced the water pump about a. The source of any of these symptoms can be hard to recognize. Barnes Jul 27 '17 at 8:25. Would anyone know what is causing. Some fixes are minor and require little work. i just bought a 1996 mitsubishi mirage S when i start up the car doesn't squeal. ok at idle(600-700rpm) when you turn the ac on you can feel the truck somewhat shake, very minute, but almost like a slight misfire. These problems can be detected and eliminated during regular AC preventative maintenance. when i turn on my air conditioner and accelerate it DOES start to squeal. I have 2011 Mazda CX7. Got home Sunday afternoon, wife was going to go shopping, started the car, but as soon as she turned the headlights on, there was a horrible, high pitched squealing, sounds very much like a slipping belt, as it was not constant. The clutch mechanism is, basically, the flat front section ("ring" in the photo) which is pulled in against the pulley when the AC relay closes. A squeal at idle means your belt is too short, the tight belt squeals as it rubs on the bottom of the primary clutch. Solutions: 1. Yep! Belt is brand new as of a month ago. While A/C clutch is engaged, pressure gauge shows it to be on bottom side of green. Something may have fallen – or climbed – into it. No issues there just when driving with the AC on it will make a quick squeeking sound. ) AC has worked fine up to this point. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. It is usually best to contact an HVAC expert or a professional technician for guidance. Squealling belt noise when a/c is turned on 9 Answers. it was all fine like that undill i turned AC few weeks ago and noticed that. But then I have lost a bit of high frequency hearing and may not be hearing it right. Replace an AC clutch by removing the serpentine belt and the air conditioner belt, unplugging the electrical harness from the compressor, removing the clutch, changing the pulley, and installing the new clutch. I have a 98 civic 5spd and my compressor has been making some new noises im thinking its going on and off in about a 15 second cycle. > > gw > > > "Gary & Emily" <[email protected]> wrote in message > news:[email protected] > > hi, my 99 ranger (manual transmission) has been making a sqealing noise > > when i let out the clutch in first gear - it used to be more noticable in. How To Fix Your Squeaking/Screeching GM Blower Motor. The clutch disc can become contaminated by oil if you have a rear main oil seal leak. However, in most cases, the problem is not really caused by clutch itself. The heavy fan motor is mounted on the panel, so have a helper hold it while you install the air conditioner sound. 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. Scimitar International brings you the widest range of parts and accessories for Mazda MX5 at the most competitive prices. The squealing does not repeat as the compressor cycles on and off, so I suspect it's the clutch or bearing and once it warms up a little it gets quieter. Tractor, Tractor Part, Tractor Engine. I was told to make the air gap between the clutch and the pulley assembly between 20-30 thousands. Exhaust De-Cats & Exhaust Gasket Kits. Hi, I have recently noticed that my air conditioning compressor doesnt run as before, previously, since i knew my AC clutch was quite worn out i would put fan on power setting 2 and it would run continously, i had to put it on 2 because on 1 it was engaging and disengaging wich has sense since air flow is much lower. Start the engine and verify operation of the A/C system. Here is the ac clutch coil which can be removed by the cir-clip shown by the center yellow circle. Got a bit of a squealy belt on my 1. Replacing the fan clutch assembly took care of the problem. Wait for the AC clutch in front of the compressor body to engage and spin. The garage have adjusted the tension but it came back. Introduction If you want to remove the serpentine belt you must first remove the AC belt. Get automotive switches, AC compressors, AC clutches, filters and more! Buy online, pick up in-store in 30 minutes. Is your AC unit leaking?. Ok, I have read the other threads on belt squealing but my truck makes a small noise as soon as it is started up. If not, go to step 8. The port hole should be clear with compressor off. I replaced the belt and adjusted the new belt's tension several times but it has no effect on the morning squeal! After about 30 second or so the squeal stops and its good for the rest of the day. Typical Subaru Air conditioning Problems explained. I've had this more than once especially with Legacy a few months after replacing the clutch. Browse your favorite brands affordable prices free shipping on many items. The weird thing is that it does not make this noise until the fan clutch tries to engage, which I never experience unless I'm towing up a steep incline, or going WOT while towing (AC on as well). One possible cause of this symptom is that the Thermistor may be defective. Hi, I have recently noticed that my air conditioning compressor doesnt run as before, previously, since i knew my AC clutch was quite worn out i would put fan on power setting 2 and it would run continously, i had to put it on 2 because on 1 it was engaging and disengaging wich has sense since air flow is much lower. Hello everyone, My 2009 Wagon R (Petrol) makes kind of a squealing/whistling noise whenever i turn on the AC. Squeal gone---great. I just installed a Vintage Air Gen IV system in my car with a Sanden compressor and March serpentine belt pulley set-up. If your compressor is turning that hard, you have other AC problems (probably compressor). ) AC has worked fine up to this point. on September 08, 2016. 4) The AC clutch and pulley assemblies are as follows: 5) Remove clutch center bolt using the clutch tool as follows. However, in most cases, the problem is not really caused by clutch itself. At times, I’m asked to listen to a certain noise the air conditioning system is making and provide feedback about what it means. I replaced both the belt tensioner and the idler pulley. One problem that fits this category is a squeaky clutch pedal, which can usually be fixed with a bit of lubrication. This places a load on the engine and the drive belt that rotates the compressor. What you see in the picture is what you will get. I even went as far as replacing the alternator because I thought the Alternator bearing had dried out. Thanks for your question about your 1990 Silverado. The routing appears to be correct except for the fact that the belt only contacts about 1/4 of the fan pulley--from 12 o'clock to 3 o'clock. Yesterday I replaced the alternator. air conditioning on 1997 chevy s10 blazer doesn't stay cold. My air conditioner has started to produce a loud squealing noise when turned on. ac compressor You mean the clutch is frozen until you turn on the ac? Then the clutch both (1) becomes moveable and (2) engages the pulley and turns? I would think the clutch should turn along with the pump since these two appear to be connected by a shaft. The clutch in this repair was a defective clutch and we were willing to cause damage to the clutch since our plans were to install a new clutch. At Sam's Tri-County Automotive, we feel servin. Sounds like a high pitched tone, just from 700 to 2000 rpm. I know the bearing can be purchased from an auto parts place but I have not seen the clutch, maybe suggesting the clutch is typically not replaced while the bearing is. No issues there just when driving with the AC on it will make a quick squeeking sound. How are AC Compressors Made? Car and truck air conditioning compressors are made of different parts fastened together to produce the finished product, a complete assembly that is. Automotive Air-conditioning Compressor. I put a vacuum on the AC system for 25 minutes and then put a 12oz bottle of 134 to the low side. Sometimes the AC clutch will make a rattling noise. Noise from Air Conditioning. I suspected the noise to be pulley or belt. Is your air conditioner making a loud, annoying noise? 6 Loud Air Conditioning Noises and Their Causes. It is a thermostatically controlled device that when. Running the AC while something is wrong will only make things worse (and result in a bigger repair bill). That sux, but I just had my AC recharged with 10 oz of freon today, and when the mechanic was inspecting it after the charge, realized that the fan clutch was going out too. The A/C Clutch is an electromagnetic device that engages and disengages the AC compressor pulley from the compressor drive. To check belt deflection set a straight edge across the top of both pulleys, push down on the belt and measure the distance between the belt and straight edge. It’s music to every driver’s ears, like a stirring symphony of harmonized audio frequencies all singing in perfect unison. Once you turn on the AC the center part of the compressor, the AC clutch should engage and start to rotate with the pulley. Recently I completed a compressor clutch pulley repair as a fix for a squealing serpentine belt on a '98 Dodge Ram. Barnes Jul 27 '17 at 8:25. Common Mercedes Problems & Solutions If you have a problem with your older Mercedes and are trying to figure what is causing it or how to fix it, you have come to the right place. Does your AC unit smell funny when you turn it on? Click here to learn why. now my question is, is that my belt that needs to be tightened, or is it my air conditioner compressor going out?. Item Description:It is an A/C Compressor Complete CLUTCH ASSEMBLY. When the air conditioner or defroster is engaged in my 2001 (not 2002) Tahoe there is a high pitch squeeling noise. When I spin it it makes a little grinding noise, so i think thats it. If the noise gets louder, it's a squeal. I had some noise from the fan every once in a while before hand, just thinking it was a cold engine warming up. The compressor clutch is a high-wear item that will need to be inspected and replaced fairly often, it will create a rattle sometimes if it is wearing out though some vehicles. Driving around on a hot day in a car without a working air conditioner can be uncomfortable and even dangerous in extreme heat. Could it possibly be the alternator itself?. I replaced my compressor last year. The center part (the clutch) should be engaged and should be spining along with the pulley. When I got home I determined that it only makes the noise when the AC clutch is engaged. If you're here, chances are you've tried to recharge your AC system and found a compressor clutch not engaging issue. Thanks for your input!. Below are the problems I am having. so when you tighten down the new clutch to 10 ft/pds. Thanks for your question about your 1990 Silverado. Unscrew and lift off the top panel. If turning on the air conditioner generates a musty smell from the vents, mold or mildew has probably formed in the air-conditioning system. take the belt off and spin the pullys by hand. It goes away after I spray it but the next time I start it up its squealing again. The sound has now progressed to being a squeal noise as well as a tad vibration. It gets louder with rpms but sounds like the bearings. Exhaust De-Cats & Exhaust Gasket Kits. Still no change in the noise. If you would do a simple jumper wire test on the clutch, chances are it is still reacting. My 2001 QX4 makes a very loud squealing sound for about 15 - 30 seconds every time I start it up then it stops and is quiet for the rest of the drive. 740, 780 and the 1991 940 cars do not have a high-pressure cutoff switch to prevent damage if there is overpressure from blockages in the system. Squealing noises are actually quite common when it comes to your car, sometimes it can be something very simple and others it can mean you're in need of a major replacement. Now suddenly it looses charge within a few days and I've left it for many months now with no charge. the idler pulley on the tensioner is not a servicable part so it must be swapped out as an assembly , ( found that the one of the uppers will work in a pinch with a. Slippage: This is by far the most common problem. One of the leading causes of a car stalling with the A/C on is a seized compressor. If I put the clutch in or even if I just lightly put my foot on the pedal, it goes away. so they get one from a junkyard and thats fine by me. Examining Air Conditioning Clutch Failures in the Field This guide can be used as a reference to diagnose clutch failures, and is specifically designed to help you differentiate between unwarrantable clutch failures and those that would normally fall under possible warranty consideration. Believe it or not, there's a specific and logical diagnostic strategy to diagnose a BAD fan clutch (that's causing your vehicle to overheat). The clutch on a 2001 chevy tracker ac unit when you turn the ac on it squeals like a bastardany fix to it? without buying a new clutch at a cost of $976 or ac compressor for $868??? other than the squeal the ac runs like a dream please help. I talked on Friday to a buddy who owns a shop, he suggested pulling the pulley and pressing in a new bearing, $20. 2008 XC70 Air-conditioning compressor noise. LKQ Online has a large selection of new and used parts at affordable prices. Air-conditioning noises can indicate proper operation as well as an indication there's a problem developing or present. I even went as far as replacing the alternator because I thought the Alternator bearing had dried out. Squealling belt noise when a/c is turned on 9 Answers. When I spin it it makes a little grinding noise, so i think thats it. also the ac compressor belt tensioner. These noises are usually any indication of a fault in the offing. High-pitched squeal from engine - 4. change your. At times, I'm asked to listen to a certain noise the air conditioning system is making and provide feedback about what it means. 0L 1MZ-FE engine, and I am hearing a high pitch squealing noise whenever the blower motor/AC is turned on, even on the low setting. Slippage: This is by far the most common problem. If you have a persistent squeak from your brakes and you've triedeverything to stop it, try this: Remove the pads and clean the back toremove dirt and dust. Browse your favorite brands affordable prices free shipping on many items. It would. Turn the AC compressor (center nut on the pulley face) by hand. The weird thing is that it does not make this noise until the fan clutch tries to engage, which I never experience unless I'm towing up a steep incline, or going WOT while towing (AC on as well). 0 SOHC Sport has suddenly decided to make a strange noise. It stops almost in a instant, but as soon as the ac is on it start squealing loud as hell. Taxis, Driving Schools, Light Commercials which carry a warranty period of 1 year or 12,000 miles. While A/C clutch is engaged, pressure gauge shows it to be on bottom side of green. Air-conditioning noises can indicate proper operation as well as an indication there's a problem developing or present. It doesn't squeak when it doesn't rotate, leading me to believe it isn't the belts? Thoughts? What else could it be? Should I try some wd 40 to it to see if the squeaking goes away? Is there a grease hole to add some grease to it? Would this be what some people are referring to as the "AC clutch"? Is this different than an AC pulley, if there. It’s not driving anything, so it’s the same as just another idler or something. It is prone to wear and eventual failure. I got lumbered with a ZD30 2 weeks ago with a zd30 engine, the guy told me the noise at the front of the engine was just the belt squealing and handed me a new belt. Sometimes the AC clutch will make a rattling noise. It immediately stops when I go to heat or push the AC button off. Motor Malfunction. If you hear a chirping noise as you press, it's most likely the clutch release, or throw-out bearing. They suggested doing the ac clutch as they had seen these fail in and around 180-200k km’s. I replaced the belt and adjusted the new belt's tension several times but it has no effect on the morning squeal! After about 30 second or so the squeal stops and its good for the rest of the day. In this article we’ll discuss both sides of the. The 1999 Dodge Intrepid has 4 problems reported for squealing noise & burning smell from ac. A brake is a mechanical device that inhibits motion by absorbing energy from a moving system. Symptoms of a bad/failing AC compressor. Looking for best A/C Compressor for your Chevy Malibu? Find great deals on AutoPartsWarehouse, get free shipping over $50. I am changing the AC Compressor, because the clutch is squealing loud as hell. Moisture or rain makes it worse. Otherwise, the truck operates normally without any issues. Motor Malfunction. For AC Clutches & Compressors, shop Advance Auto Parts. Transmission Clutch Diagnosis. Yep! Belt is brand new as of a month ago. It is used for slowing or stopping a moving vehicle, wheel, axle, or to prevent its motion, most often accomplished by means of friction. Noise under hood, engine over heats. But then when I hit the ac button the compressor engages and you hear this loud and i mean LOOOOUDDDDDD squeal/skreetch!!!. Chevrolet 1500 Pickup Air Conditioning Compressor May Become Noisy - 16 reports. ""When the clutch is all the way out the car makes is a chirping squeaky noise. so when you tighten down the new clutch to 10 ft/pds. 5 has had a squealing belt-like noise that is very irritating but apparently not affecting anything. My vehicle is a Lexus IS250 with almost 140k miles. The routing appears to be correct except for the fact that the belt only contacts about 1/4 of the fan pulley--from 12 o'clock to 3 o'clock. The compressor clutch is a high-wear item that will need to be inspected and replaced fairly often, it will create a rattle sometimes if it is wearing out though some vehicles. is ready 24 hours a day, 7 days a week, to provide you with emergency care for your air conditioning in Jacksonville, FL. Symptoms of a bad/failing AC compressor. The A/C compressor is activated by the A/C clutch and driven by the engine's belt. update was easy peasy, a vise and a ball joint press did it all. However, driving in the heavy traffic, on hilly roads or other driving conditions can actually shorten the life of your clutch, causing it to slip. I checked the tension on the belt and it had some play - so I tightened it up just a bit more, and the squealing has completely stopped. Does your AC unit smell funny when you turn it on? Click here to learn why. The Air conditioning (AC) system in your Subaru is made up of the following. No residue or anything like that. The root cause of this increased compressor cycle is caused by a reduction in the surface area of the air conditioning system evaporator from 2007 model year CR-V onwards. I got lumbered with a ZD30 2 weeks ago with a zd30 engine, the guy told me the noise at the front of the engine was just the belt squealing and handed me a new belt. It starts squealing very loudly when I hit the gas pedal when starting out. - Robert S. Would anyone know what is causing. the idler pulley on the tensioner is not a servicable part so it must be swapped out as an assembly , ( found that the one of the uppers will work in a pinch with a. In the end, car dealer service departments and savvy car owners like myself turn to lubing the clutch pedal assembly to solve the issue. I got lumbered with a ZD30 2 weeks ago with a zd30 engine, the guy told me the noise at the front of the engine was just the belt squealing and handed me a new belt. they said that they. If you’re here, chances are you’ve tried to recharge your AC system and found a compressor clutch not engaging issue. Power Steering System Squeaking Noise Repair Procedure: Damage To Clutch Slave Cylinder During Installation –Revised Procedure Air Conditioning System Not. Sometimes the AC clutch will make a rattling noise. I would look at the AC Belt. The noise stops when the clutch disengages. Place this around the pulley in such a way that you can keep the pulley/clutch from rotating. Air Conditioning problem 2002 Lexus RX 300 6 cyl Front Wheel Drive Automatic When I first start up car there is a noise coming from the AC compressor or altenator or power steering pump it sounds like crickets but stops after engine has been running for about 20 minutes and will stop if rpms are above 2200. An air conditioner compressor beginning to fail, a compressor pulley or serpentine belt that is beginning to wear out or the compressor clutch can cause a rattling noise. Sometimes the clutch itself can be replaced, but usually replacing the entire compressor turns out to be the most efficient repair. My 2001 QX4 makes a very loud squealing sound for about 15 - 30 seconds every time I start it up then it stops and is quiet for the rest of the drive. They literally transfer the power from the engine to the transmission, making the vehicle go. If the compressor is bad the clutch may not have enough holding power to rotate the shaft. When they are installed properly they will last for years, but there are also numerous. Also put in a new belt. This would be after startup for the alternator, when turning the wheels for the power steering pump or when the AC turns on for your air conditioning compressor. To check belt deflection set a straight edge across the top of both pulleys, push down on the belt and measure the distance between the belt and straight edge. Your car's air conditioning is acting up, but you don't know what's wrong. AC Compressor Replacement in the DOHC Mitsubishi 3000GT/Dodge Stealth by Jeff Lucius Introduction These instructions supplement the instructions in the service manual for removing and replacing the air conditioning compressor in a the DOHC Mitsubishi 3000GT and Dodge Stealth. Clutch pedal lubrication. I replaced the water pump about a. the idler pulley on the tensioner is not a servicable part so it must be swapped out as an assembly , ( found that the one of the uppers will work in a pinch with a. Browse your favorite brands affordable prices free shipping on many items. Refrigerant leaks, resulting in your air conditioning freezing up. Luckily, there are only a few issues that can be creating this problem. I heard an intermittent squeal at idle from the engine compartment yesterday, while taking my wife's '78 911SC out for a day trip. Due to the complex construction of all automobiles, problems are bound to arise from time to time requiring maintenance. For this reason we have come up with a Troubleshooting Guide to help you out. The clutch that turns the A/C compressor is going bad. This is a port hole that allows viewing the actual Freon inside the system. Check for oil and coolant leaks around the back of the engine. It is worse in the morning on cold starts. after replacing the belt and the tensioner pulley the noise stopped for about 30 minutes then started again.