Alternator Noise

It's a fast test and more importantly an effective test to find out if the alternator is in fact bad. If you've got a bad diode it'll allow AC past it. a 10in REaudio sub with a USamps amp. The alternator tests bad under heavy load (with AC and lights and rear defrost, voltage drops below 13V and keeps dropping), but puts out voltage to spec when not loaded like that. So the only thing left was the alternator. the bearing was bad in the alternator pulley and that's all it was. • Inspect if voltage does not increase: If the alternator incorporates an ignition (IGN) terminal this terminal must have battery voltage present above 12. 4451A098 Alternator Belt MD375935 V-Ribbed Belts That noise just makes it a lot harder to concentrate where it exactly comes from, however it seems to be the. Hissing alternator Hello! I think i'm having a problem with my car's alternator. Noise isn't coming from the alternator, and it should be well grounded to the engine block through it's mount anyway, but experimenting like this is a good approach. This was followed by digital ICs and microprocessors, which are. After i took it off and placed it back in its spot all hell broke loose. 4 I had a rattle/vibration noise coming from somewhere around the top engine/intake area and it turned out to be bad bearings in the alternator. • If the noise is not heard until the vehicle is put in gear, either with an automatic or manual transmission (question 3), the cause of the noise could be internal to the transmission (for manual. Step #1 (in my opinion) - make sure a diode in the alternator hasn't failed. Drivers sometimes complain of a growling or whining noise before the alternator gives out; You may experience a smell of hot wires or burning rubber; The average alternator repair cost is between £250 and £300, depending on the car you drive, so it’s important you make sure you find the best deal. Thread starter My brother has a 1998 900 Trident and I remember a noise he had in the engine many years ago was caused by a loose alternator. If i adjust the tickover to around 1200rpm it stops. I know the unusual noise is coming from the alternator. Great little car. The speaker wires are along one side of the truck and the amp wire on the other which usually takes care of it. Alternator whine in your car stereo can be an elusive problem. To cure alternator noise, which is pulses radiate from the output lead, it is necessary to filter the output lead as close as possible to the alternator. 3L and it's alternator (DR44) and PS pump made no noise at all, no whine, no buzz in the cab, nothing. Alternator Belt Problems. If I unplug this black connector amp draw/whining goes away. The following procedure can help determine the source of the noise by isolating the power steering pump from the alternator (GM reference bulletin 463201). We apologize that this item is not available for pickup in store at this time. Today I realized I can see the alternator from underneath. Likely culprits include the ignition, the alternator or even a fuel injector. You might notice that the noise goes away after a while, and that's because when it's cold, the rubber belt that drives the alternator is more rigid. about a year ago I started hearing this whine like, electric drill sounding noise from my car. Odd noises. its an irritating wuuuuuuuuuhuuuuuuu sound but it goes away after about 7mins on idle. One of such tests involves jump starting the car. New 2020 Buick Envision Essence 4D Sport Utility Visit Towne Auto Group in Bowmansville & Orchard Park NY #LRBFX2SA7LD047660. However, this item may be purchased online to be shipped to home or may be purchased in person by visiting a NAPA store. Mechanics said it was alternator bearing or Diode problem. Get it pulled now. when the noise happens my volt meter needle goes up to full and when it stops it goes back down to between. Most of the time failed alternator can be fixed by replacing cheap voltage regulator (i. Im 100% sure its the alternator not the belt you can unplug the regulator wire from the alternator and it stops making noise, its a new alternator because i think the other regulator went out. If the Clutch is engaged, and the vehicle coasts; there is no noise. It also cleared up a lot of alternator noise when it was fixed. The belt was a little tight so I pulled it off and started it up, no noise so it's definitely coming from the alternator/fan. However, these had been cut away at the operator. If the squealing stops or changes pitch, the belt is the source of the noise. Sounds to me like there is a draw already on the alternator. pulled the alternator out in front of the shop this morning they had a new pulley on there within an hour. This electrical component keeps the battery charged and provides power for lights and accessories. Front lights, break lights, heat, windshield whipers, leaving the car in drive at a red light, back window heater. mission success. The diode's simply rectify the AC from the alternator into DC. If it is a whining or growling sound it is probably a bearing ,all alternators make a slight noise when the are charging. How to diagnose and eliminate noise Use the following diagram to diagnose and cure the most common noise problems associated with systems with outboard amplifiers. Alternator whine is caused by a difference in electrical potential (voltage) between two points. I don't want to chance to take alternator apart for a very mellow noise, unless it is a no-brainer. This turned out to not be the source of the noise, so the only thing left in the vicinity of the noise was the alternator. The noise stopped & front speakers were fine. Does this look like RFI noise? It has a one wire alternator on it. Serving aircaft owners, pilots & RC modellers for 30 years. Toyota Corolla 2009, Alternator by Remy®. Many of the parts we sell come with a one year warranty. Alternator Whine. Been close to 5 years since I installed this alternator from RockAuto. Grounds are good. It's most obvious on the outside of the car. If you're hearing a whining, it's more than likely caused by the voltage regulator telling the alternator to charge more than it should be at the time. It is a noise that only happens when the alternator is on line. To see if the problem is comming from the ignition or the alternator, remove the alternator belt and run the engine. Your factory alternator may be enough, or it might not cut it. belt tension pulley bearing froze and separated pulley from bearing, which he had to hunt for under the hood. No Fix! Turned AC compressor on and off made no difference. Specifically, worn out bearings inside the alternator have been known to cause this type of noise. Making sure you include the proper rated fuses links on both leads immediately after the battery terminal connection. I've been hearing this noise for about 4-5 weeks now. First, the battery delivers a jolt of electricity to the starter. Add-on "heavy duty" noise type filters, were designed to cover a single device, like a stereo or CB, that is having noise coming in the power line. Grab a bargain at AutoPartsWarehouse today!. 'alternator' in our machine translators. Sometimes the whning noise in the alternator is caused by a bad diode in the alternator. If the bushings that the alternator is mounted on have gone bad, a noise will be produced. If the Clutch is engaged, and the vehicle coasts; there is no noise. My mechanic said to replace the rubbers cushions on the alternator drive. However, Powermaster and other alternator manufacturers do recommend you replace both the ground straps and charge wire. Mine did this too. New 2019 RAM 3500 Limited Mega Cab for sale - only $86,910. So the only thing left was the alternator. Spray a small amount of water on the alternator belt, if it makes it quit screeching or reduces the noise it is likely a bad alternator belt. If the pulley is not in correct alignment with the belt, if it's canted on the shaft or if the bearings and bushing are worn out, the growling or whining noise will let you know there's a problem. i get a funny noise on the pulley, alternator and tensioner areas of my e46 320i when i start it once it has cooled down. This is considered a NORMAL condition and is caused by the rotor “slow-down” function that is built into the alternator. If there is AC noise it going every where so unless you going to hook up a noise filter to the ECM, VP44, ABS, Intrument cluster, etc. It sounds like you have air in your power steering system. The gearbox that drives the alternator could be the noise. Serving aircaft owners, pilots & RC modellers for 30 years. 429 Responses to Why Is The Power Steering Making Noise on My Subaru Outback? Dan Hanks February 5, 2008 at 9:29 pm # I recently had my alternator go out on my 2000 Outback which required a tow to the local repair shop and an alternator replacement. A "whine" from the alternator itself is usually due to the bearings failing. Especially if everything is working correctly and there’s no sign of the electrical features of the car not operating effectively. This means you’re more likely to get that often familiar squealing noise upon start-up. As I was checking the alternator and adjusting the belt, I noticed that if everything wasn't lined up exactly right, the alternator cooling fan fins could rub on the mounting bracket, which would produce the kind of noise I heard. If your battery is good, and your alternator isn't working, the battery will still lose its charge because the alternator isn't keeping it charged. iam using the bose amp with bose speakers. This will cause the belt to slip across the pulley surface during belt and alternator speed fluctuations. If one of these parts starts to work ineffectively or breaks off, you may hear some unusual sounds. Also, possibly unrelated my idle is a bit higher than usual. Ranger & B-Series - Alternator noise - I have a slight squeak noise that is only heard at idle some of the time. You will also notice a rubber belt attached to the pulley and alternator. Grab a bargain at AutoPartsWarehouse today!. When you turn on the headlight and step on the accelerator, observe the headlights. The Suppression Capacitor removes Alternator Noise from the Audio System and prevents false triggering of other Electonic Devices. I narrowed it down to the alternator. not really, i put the straw in mine and squirted it in, then just ran it for a bit, as brad also says, it could be water pump, start her up, if its making noise, loosen off alternator and take belt off, try it again, if noise is gone its alternator, if still there then its waterpump and you will need to get it sorted. You'll need an M10 spline tool if you're going to do it yourself. Identify the underlying cause of the whine to silence it for good. I first thought it was the serpentine belt wheel to the right of the alternator, so I replaced that. The noise is only audiable when the radio is transmitting. Noise and Noise Suppression EMI electromagnetic interference. Replied by cap269 on topic RAV4 alternator/charging problems, fusible link desertdude wrote: The good news is the car starts fine with the new alternator installed, and the screeching noise is gone. The alternator was still working fine, but when I took it off, the front belt pully would move up and down about 1/4 inch. A worn out belt can squeal during operation. Especially if everything is working correctly and there’s no sign of the electrical features of the car not operating effectively. It’s quiet when. I will probably take the wire off the alt in the morning and see if it's AC ripple. If you think you may have front bearing wear, most auto part stores still offer rebuild kits for these. You could scope the alternator output and see what it looks like or if you have some larger clip on ferrite cores just as a test. It’s also true that a weak alternator will result in an undercharged battery which can lead to early failure of the battery, which stresses the alternator further. Today I realized I can see the alternator from underneath. Replied by cap269 on topic RAV4 alternator/charging problems, fusible link desertdude wrote: The good news is the car starts fine with the new alternator installed, and the screeching noise is gone. Amazon's Choice for alternator noise suppressor. compressor and vacuum pump by removing the belts one at a time. Noise from bad alternator The video that you posted CKVPatriot was so helpful. If you have a garage and some experience in the automotive field, this is a job you can do on your. If you turn the steering whilst stationary (bonnet up), does the aux belt at the front of the engine vibrate? If so a tenner says its the alternator pulley. For stubborn alternator noise, this Alternator filter combined with the Eliminator (P/N 11-08055)can trap a wide frequency range of electronic noise. A "hum" can be caused by a bad alternator bearing or burnt diodes. Step #1 (in my opinion) - make sure a diode in the alternator hasn't failed. Could be either alternator, starter, or possibly still some bad connection, but I doubt the latter. Anyway, if the noise is originating from the alternator, thats probably an alternator replace/rebuild time. I have wired Eq and other amps to the speaker out with no noise problems. The alternator cost will range from $200 to $700 just for the part itself!. the alternator was charging at or below 9 volts. 3000 engine rpm, the alternator fan can cause a whining noise. Hi folks, Has anyone had an issue with alternator noise when using bluetooth? Here's my scenario: USB audio/FM: no issues Bluetooth: no issues when in accessory mode, very on/off high pitch sound when in EV mode, consistent high pitch sound when engine is on, which varies a bit with speed. The Honda Accord is known for premature alternator bearing failure. Honda crv whining noise while driving Honda CRV is making a loud whining noise when I am driving, but the sound stops immediately when I step on the brake. Amperage is a term to describe the flow rate of electrical current. You may also have an alternator going bad. Older vehicles with generators tend to require much more maintenance than newer models, but there's no hard and fast rule for how long an alternator will last. Most of the time failed alternator can be fixed by replacing cheap voltage regulator (i. This filter is designed in house by Clays Radio Shop technicians. pulley by hand; you should hear squeaking noise if a bearing is bad. It's new, and it's not the bearings. If you experience flickering headlights, stalling or strange noises when driving, your car isn't haunted; chances are it's just a failing alternator. Current Problem When I turn on my truck I get alternator noise in all of my speakers. If the smart alternator controller detects a system fault, the smart charging functionality will be disabled, Diagnostic Trouble Codes (DTCs) set, and the engine management and battery warning lights illuminated. Mounting hardware can rattle. It's most obvious on the outside of the car. I heard a whistling noise from the alternator and being somewhere I couldn't get specialist attention I opted for a Toyota mechanic who removed the alternator and replaced the bearing. One other thing is sometimes for some reason ive heard a noise like that coming from the speakers of my car that goes up and down with the speed of the motor, but that was when I was tinkering with speakers and sub outs and amps. Removing the serpentine belt and briefly starting the engine is the next step to help diagnose where the noise is coming from. I suspect it's coming from the alternator pulley. My advise is to get one from the dealer or better yet from a national parts chain with a lifetime warranty. 3 - From the alternator you go to the BATTERY. 4451A098 Alternator Belt MD375935 V-Ribbed Belts That noise just makes it a lot harder to concentrate where it exactly comes from, however it seems to be the. Finally, the alternator completes this cycle by charging the battery. Hey PH, This was posted on another site but it does work, several of the members including me have built it. anyone no how to stop it or what the problem may be. The Solid Alternator Pulley The Overrunning Alternator Pulley (One-Way Clutch). Easy way to check for this is to put a voltmeter on your bus turned on to AC and note if there is an AC voltage present when the alternator is on. The most common and the most annoying. In case, the car’s engine halts soon after, the alternator is at fault. Could i have bought the only Trophy that has not had the alternator bolts sorted. What Does an Alternator Do? An alternator works with your battery to charge your vehicle's electrical systems. If I was a doggie my ears would have pointed upward when I heard the noise in your video. There is one weakness to this alternator, its the rear bearing noise. I sprayed DeoxIT on radio control connection and blew out with canned dry air. Serving aircaft owners, pilots & RC modellers for 30 years. I find a "birdie" about every 24 khz on all the amateur bands. What you are hearing is alternator noise in the speakers. I replaced the belt, idler, and tensioner when I noticed just spinning the alternator gives the sound I'm hearing. alternator ripple. Right out of the box, many of the blades are bent and hitting against the housing. 429 Responses to Why Is The Power Steering Making Noise on My Subaru Outback? Dan Hanks February 5, 2008 at 9:29 pm # I recently had my alternator go out on my 2000 Outback which required a tow to the local repair shop and an alternator replacement. INTRODUCTION. New alternator installed has a whining noise. Sounds like the power steering is on full lock all the time. Solution: Check charging condition of battery. Replied by cap269 on topic RAV4 alternator/charging problems, fusible link desertdude wrote: The good news is the car starts fine with the new alternator installed, and the screeching noise is gone. The noise i have is at tickover speed and is like a clacking sound. That AC signal will have 9 cycles for each revolution of the alternator. If the pulley is not in correct alignment with the belt, if it's canted on the shaft or if the bearings and bushing are worn out, the growling or whining noise will let you know there's a problem. The noise itself is a constant "whine" when at idle, and graduates to a fast high & low pitch back ground noise when at high RPM. Although it may sweep across the bandpass, that is not always the case. Use a Noise Filter De-Coupler. org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. A whine noise emanating at the front of the vehicle that appears to be coming from the power steering pump. Looks like it's not engaging until after about 5 seconds of running and makes the most god aweful screetch. The belt was bad, put the new one on and still made the noise. Glad I was home in my driveway letting Riv warm up when this happened. This typically results in a squealing noise. Right out of the box, many of the blades are bent and hitting against the housing. The J-Body Organization, j-body. sounds like. The special tool costs about $65. What I've installed is listed below and the problems I'm having as well as what I've done for troubleshooting. Newmar 150-A Alternator Line Noise Filter 150 Amp Attenuates conducted line noise generated by alternators, ignition systems and motors. I think your diag is right on. The Challenger's alternator output is field controlled via the PCM using PWM technique and contains high harmonics. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35. When the alternator initially went out, I was in a very small town that only had one of those "we'll rebuild your current dead alternator" shops. You might notice that the noise goes away after a while, and that’s because when it’s cold, the rubber belt that drives the alternator is more rigid. If it's radiated to other systems in the car you might treat that differently than noise that gets in via the 12 volt connection. M1031 Cold start Advance and ECM For Generator/Alternator If this is your first visit, be sure to check out the FAQ by clicking the link above. Hello all, My question is, whenever my car sits overnight. Grounds are good. The other winter alternator problem you might notice is a squeal coming from under the hood. However, Powermaster and other alternator manufacturers do recommend you replace both the ground straps and charge wire. Recharge batter if necessary. One give away that it is the injection system and not the alternator is that while the frequency varies with engine RPM, the amplitude will vary with throttle position. With the availability of affordable. At very low temp's the alternator may whine for the first minute of operation. Our noise filter is primarily designed to eliminate alternator whine, windshield wiper noise, and blinker noise. Make sure to check that your head units data cables (wifi, GPS, USB, etc. It'll help you to diagnose a BAD alternator in a pinch. While rehooking up wires notice sparking on negative terminal above engine with out positive lead connected above. A whining/buzzing noise coming from the alternator is another symptom of alternator troubles. The battery was bought in 2008, a Napa Gold. The whining sound is a sign that the bearings in the alternator are going out. The Suppression Capacitor has been disconnected from the Output. Its pitch will usually vary with engine speed. I suspect it's coming from the alternator pulley. Im thinking the battery maybe be low and cuasing a huge load on the alternator so I'm letting it the batt charge all night. Problems with vehicle starting or charging could be caused by a worn out alternator, a dead battery or a starter problem. Ran 3 days. If you're plagued with this particular noise, the alternator's regulator is a good place to start looking. One red going to the back of the alternator and a red and brown going to the side of the alternator in a black connector. A broken alternator can be a real headache, and because it works so closely with the battery, it can be difficult to pinpoint as the culprit for power problems. then suddenly make a rrrrrrr-ing! kind of noise, and the engine will stop rotating. After i took it off and placed it back in its spot all hell broke loose. An automotive alternator is responsible for providing the vehicle with electrical power while the engine is running as well as charging the battery. They can hum, but a squeal is caused by a slipping belt. To find what amperage your alternator is, you must first understand the relationship between volts and amps. Had a diode go bad, noise but lived with it - till our 430W started acting up, dropping fix every once in a while etc. A fresh diode pack (it's a Denso alternator) and the AC is down to 50-100mv by 4k. There are several ways to reduce alternator whine, but the only to remove it entirely would obviously be to find out what is causing the noise. The most important and simplest thing you can do to eliminate alternator whine is run a separate set of power cables directly from the cars battery terminals to the radio. I had the pleasure of listening to another 900 and some 1200's last weekend (you know out with the mates like you do) and in good nick I don't think there is much to. To my great disappointment, the monkey nuts were in excellent shape and there was no damage to either the alternator clutch housing or the driving dog on the engine. Got the alternator replaced, noise gone, 430 solid as a rock again. These can cause interference and introduce a whining noise to your audio. AutoZone makes it easy to find the best alternator bearings for cars and trucks. RCAs need not be needed. Noise introduced through the power and ground wires connected to your receiver is called engine noise or alternator whine. Suppression of Transients in an Automotive Environment The initial stage of solid state electronics into the automobile began with discrete power devices and IC components. To test for this, remove the field wire to see if the noise goes away. Find a great collection of Generators at Costco. The speaker wires are along one side of the truck and the amp wire on the other which usually takes care of it. Alternator Noise Filters suppress noise on CB, 2way, and other mobile radios, as well as other mobile electronics prone to alternator noise. It doesn't do it everytime, just occasionally. There are several possible causes of alternator whine and troubleshooting is the best way to isolate it. Uses a choke coil, capacitor combination to reduce alternator whine. its an irritating wuuuuuuuuuhuuuuuuu sound but it goes away after about 7mins on idle. Serving aircaft owners, pilots & RC modellers for 30 years. Pre-Power Stroke Diesel (7. Alternator noise - Nissan Nissan Alternator makes noise. Battery or alternator: what’s causing the problem? Starting and running an engine, in its simplest form, is a three-step process. Grants Pass Airport. As the RPMs of your vehicle rise, the volume of the alternator whine can increase as well. Sometime during taking my trunk apart, removing my amp, replacing it and putting the trunk back together, I got some engine/alternator noise. about a year ago I started hearing this whine like, electric drill sounding noise from my car. The bottom line is this: When you hear a belt squeal, get it fixed even if the noise goes away right away. When the engine spins the alternator around, the alternator induces an AC voltage that is converted to DC and used to charge the car's electrical system. T1N Talk General Discussions related to T1N Sprinters. A trick for trying to find sounds in components that is hard to tell where it's coming from is take screw driver and stick the tip of it on the casing of whatever you want to test (alternator ect. Photo by Halholden. Due to some electrical issues my Jeep had this time last year, the battery has been killed 4 or 5 times. AT what engine speed is the noise loudest? The alternator does mount to engine with dowel sleeves around some of the 4 bolts. A bad diode inside the alternator as well as driving for long span of time under hot weather can also cause your Dodge alternator to fail. Started engine and squeal noise still. Im thinking the battery maybe be low and cuasing a huge load on the alternator so I'm letting it the batt charge all night. Alternators don't squeal. alternator noise The system isn't anything spectacular, Sony head unit, Visonik 1000w 4ch amp with Infinity speakers. For instance, a 100A alternator has a "rated" output of 100A, which means that it is capable of providing 100A when the alternator shaft is rotating at 6,000 RPM. This was followed by digital ICs and microprocessors, which are. I really feel for you if you have harness insulation. When I got home the noise was gone. Thanks for asking us a question on our article “Why Is My Car Making a Whining Noise?”! I’m sorry you are having trouble with your power steering system, but hopefully it will be an easy fix. You may also need hard-to-find tools, friendly advice, or maybe even a little encouragement. In this article, I present some of the possible causes of whining noise while accelerating. A short chirp noise during engine start-up or shut down is most likely caused by a worn overrunning alternator pulley. The alternator is driven by either an accessory belt or a serpentine belt in conjunction with the crankshaft pulley. It is measured in amperes (amps). I looked to see if the cooling fan on the alternator was clipping the support arm or the cambelt cover, but it seems to be clearing them both by at least a couple of mm. If the noise changes frequency as the engine revs then the noise is one off the alternator. Need help with alternator loud a$$ noise after changing the alternator top bracket to clean off some surface rust. The alternator pulley spins on a shaft, which in turn is supported by either bearings or bushings. Probably due to Honda putting cheap Chinese bearings in it. Has anyone performed an AC ripple test? Result should be no more than. It's usually caused by a ground connection that is less than ideal. Luckily, there are some telltale signs that help make a proper diagnosis. Right guy every morning when i go and start my car i get this screching noise from my alternator it only does this when it cold in mornings, After 2-3 min it goes. I have a 2017 hyundai santa fe. Inside an alternator the belt-driven rotor becomes an electromagnet when current is fed to it. The alternator pulley typically spins about two times faster than the crankshaft pulley to produce the necessary power for the vehicle at lower engine speeds, especially while idling. Check out the entire library of sounds recorded and uploaded on Mycarmakesnoise's database. Got an '06 with 33,000 miles on it, just picked it up from replacing the water pump and was told the alternator is starting to make noise. I wired the unit to the unused factory phone harness. Had a diode go bad, noise but lived with it - till our 430W started acting up, dropping fix every once in a while etc. Eventually, you may also notice the alternator may begin to smoke a bit due to the friction caused by the worn out bearings. Replaced the spring loaded tensioner and crankshaft damper pulley but the alternator still made the screeching noise?? So the clutch on the alternator must be the wrong type or faulty. If one of those bearings were to fail, you will hear a grinding noise coming from the alternator. Not only is this noise annoying, but a slipping or loose pulley could mean other problems in the future if not fixed. The ALTERNATOR keeps your battery charged. The reason why your car is slower when you are using it is because the more amperage you pull, the harder it is to turn the alternator. Got the alternator replaced, noise gone, 430 solid as a rock again. Other less noticeable and less common symptoms include weird sounds and bad smells. Im thinking the battery maybe be low and cuasing a huge load on the alternator so I'm letting it the batt charge all night. Otherwise it is likely a bad bearing in the alternator and it will need to be replaced. The Challenger's alternator output is field controlled via the PCM using PWM technique and contains high harmonics. Amperage is a term to describe the flow rate of electrical current. Serving aircaft owners, pilots & RC modellers for 30 years. He explained that when a diode fails the unbalance in the alternator magnetic circuit causes the whine. except sometimes thr battery light will go off and will charge but. Alternator Noise Filters suppress noise on CB, 2way, and other mobile radios, as well as other mobile electronics prone to alternator noise. Secure the alternator in this position. Also, a loose alternator belt prevents the part from running at standard speed, so it will not provide the right amount of voltage. Things that make the squealing noise. alternator removal and reinstallation difficulty 2/5 also I replaced the serpentine belt with the RockAuto replacement. However, I also have the same noise coming direct from the alternator which you can hear with the bonnet lifted, or if you just listen closely. The tensioner pulley turned out to be bad and was making noise as well. Visual cues. 2011 Dodge Charger (Page 1 of 3) The alternator was making a loud noise from the bearing and the battery saver mode was coming on/off. The do wear out. The alternator noise. YouTube Video Link:. then suddenly make a rrrrrrr-ing! kind of noise, and the engine will stop rotating. New alternator installed has a whining noise. I've been hearing this noise for about 4-5 weeks now. 429 Responses to Why Is The Power Steering Making Noise on My Subaru Outback? Dan Hanks February 5, 2008 at 9:29 pm # I recently had my alternator go out on my 2000 Outback which required a tow to the local repair shop and an alternator replacement. Burnt up alternator. The bottom line is this: When you hear a belt squeal, get it fixed even if the noise goes away right away. 8 out of 5 stars 6. As the rotor revolves it generates a higher current in the stator windings.