You could also have worn wheel bearings. A car that makes such a weird noise at the time of acceleration, will be fine at a set speed. Theres nothing to worry if it is between the add and full labels. Accelerating/decelerating changes the direction of thrust in the transfer gears. It seems to happen everytime I lift my foot off the accelerator while cruising. maybe thats what your hearing. When the engine coolant temperature is approximately 158 degrees Fahrenheit or below, the ignition timing map in the ECU is changed to retard the engine timing. The engine needs the right amount of oil to ensure the motor remains lubricated and protected. RELATED: 7 Engine Noises You Should Not Ignore (& What They Mean). To finish, if you encounter a noise when accelerating with your Subaru Legacy and this noise which could be a cliking sound tends to end when you disengage (press the clutch pedal), then one of the wear parts of your clutch system may be the reason. A notable sign that its a failing tranny oil pump is consistent at all speeds. After that, unbolt the crankcase. This sound may be a indicator of a slackened belt, in which case the tensioner roller or its wear and tear may be to blame. Technically when steering components are whining during acceleration, it can come from either underneath the vehicle or from one of the wheel wells. You should check the motor oil, transmission fluid and power steering fluid to ensure everything is at the full line. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Its completely harmless, but youll have to remove the attached objects to get rid of the sound. If youre hearing a whining noise from your transmission, you can get your hands dirty or contact a professional mechanic. If you listen to this blowing or whistling sound on your car, feel free to consult this document about turbo noises on Subaru Legacy, if you would like more information. With the vehicle in Park, your friend could rev the engine while you look around. The CVT fluid was dark, but didn't smell burnt. When theres a clogged transmission filter or a restriction on the transmission passages, it can cause several tranny problems. One of the common signs of a failing transmission oil pump is a whining noise when driving. Wheel Bearing Noise Causes & What Does It Sound Like? Just make sure you check the reputation of the shop you plan to visit first or you could be ripped off. If your transmission level is good, you should look for a bad serpentine belt or a vacuum leak instead. It can also be caused by poor lubrication causing friction, defective transmission crankcase causing leaks, etc. We have noticed a drop in Average Fuel Economy from about 24mpg to 20mpg over the last two months or so. As you accelerate the car, the serpentine belt tries to run at a faster speed to keep up. This article will discuss the causes of transmission whining noise when accelerating. 2012 Subaru Outback Rear Whirring Noise : r/MechanicAdvice - Reddit Check it and swap it if it is the reason, otherwise you risk blockage your engine in the long run. One of the most common components that will start whining while accelerating is the alternator. Tightening the belt will solve this issue. Specifically when you feel a noise when you accelerate on your Subaru Outback. The whining sound has gotten a slight bit louder in the past couple of weeks. Clutch pressure plates and discs in manual transmissions do not last the vehicles life. More then likely this a gear or a bearing in the drivetrain. A good alternator in most car models will not make a whining noise loud enough to detect from inside the car when accelerating. If your Subaru Legacy makes a loud noise when you accelerate, it is quite conceivable that the alternator belt is the reason of your issue. The dealer has heard my whine (in more ways than one), but won't fix it until it's bad enough to be there all the time. Have them stand outside the vehicle as you drive by to help you locate the sound. The engine computer will need to be tested (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) to see the codes received. Getting the belt tightened and the whole assembly realigned, might solve your problem. The truth is that a whining sound can come from a ton of different locations and components. What could be the actual cause? The transmission filter serves filtration purposes. Recently, my Subaru Outback has been making a super random whine/whirring noise while driving. 2013 XV Crosstrek Limited Satin White Pearl (SOLD) See you in the Everglades. But if the bearing in your alternator is bad, you can hear it when you accelerate. I Just Had My Catalytic Converter Replaced In My Outback. When it happens, the sound will occur when you are turning the steering wheels. A dipstick has two labels add and full. Therefore, a faulty transmission pump will whine in all gears, including park and neutral. Scott - 2015 Subaru XV Crosstrek 2.0i 5MT white - 350,000 miles (=563,000 km). It is unusually loud though. If, on the other hand, you do not get any power loss due to an humming noise on your Subaru Legacy, it is more than likely that you have one of your junctions or air hoses that has holes. But immediately top off the transmission fluid and hope that driving with low transmission fluid hasnt already damaged the transmission. I'm assuming it is coming from the CVT and . Once I am at 65mpg, the pitch of the whine will constantly fluctuate. This timingchange is done in order to quickly heat up the exhaust catalyst to reduce emission gases. It is an internal bearing within the transmission housing. The alternator belt is a wearing part that is used to bring power to the secondary components of your Subaru Outbacks engine and although it is less vital than the timing belt it can bring about engine failure if it fails. Its not something that you can prevent but it is possible to diagnose the reason and having a fix before it becomes worse. There are multiple bearings used throughout the car that could be causing a whining noise. But after youve filled the reservoir, you need to take the time to find the source of the leak, or youll keep coming back to the same problem. Drain the transmission fluid with a sizable wrench. 7. My car is making a whining noise but it's only with acceleration. They wear out over long use and start showing issues. This problem can be most prevalent as you attempt to accelerate, since the motor is put under pressure during this operation. However, you should know your transmission sound to avoid confusing a fault with a normal operational sound. If the whining increases in reverse, you have a restricted transmission fluid passage. 2008 subaru impreza rs hatchback whining sound when idling When you are driving a manual car, a whining sound means a completely different story. However, another common problem is that the power steering pump is low on fluid. You should do a thorough transmission check-up when the car starts making a grousing sound when speeding up. While this avenue might cost you more than doing the job yourself, you will know that the problem was dealt with by an expert. For this reason, if theres a failure, you might notice the whining sound is louder. It is actually challenging to find the root cause of whining noise when accelerating but these common causes will give you the heads-up. When you observe uncommon noises on your Subaru Outback you tend to worry about them. As a four-time Subaru owner, I wondered if what Johnznot heard was anything more than the usual rattle of a 2.5-liter, four-cylinder Subaru engine. The first thing you should check after hearing a loud whining noise when accelerating is the engine oil. It serves the critical purpose of providing lubrication to the valve body and other essential internal tranny components. i have retimed it twice. When you notice a whining noise from your transmission, check the fluid level and ensure it is on the right gauge. At initials, itll make a whining sound like a power steering pump with low fluid. The noise is caused by the timing chain and tensioner. We reached out to Subaru of America to see if they could (would) explain the unique sound quality of the engines, so many of us know and love. Used 2022 Subaru Outback SUVs for sale in East Pasadena, CA - Cars.com Mine has a whine when accelerating in 5th gear only, which is amplified with the boot off 10 fold. How to Troubleshoot a Car With Clutch Noise - YourMechanic Thats because you can find steering components in both locations. 3- The higher pitch squealing seems to indicate a thin or skinny piece of metal rubbing somewhere. We think given Subarus explanation, Johnznot having had a dealer start three random new Outbacks on the lot, and our experience with this type of sound, it is fair to say "They all do that.". SPONSORED LINKS Do you have the same problem? Low level of fluid can cause all sorts of problems, and bizarre noises are the first to start with. When I let off the gas or touch the brake a whiring sound begins and sounds like it is winding down. Loud humming/whirring sound from the rear - SOLVED! Worn Pulley Bearings. They usually growl or groan a deeper pitch. This means the transmission pump starts working when you turn on the engine. Rxmechanic.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon.com. Wash it with a solvent or gasoline and allow it to dry. No direct injection yet in the Subie 2.5i. Meanwhile, if the sound is coming from an external amplifier, chances you dont have the best ground. Did this all start happening after fluid drain and fills? Depending on your vehicle make and model, a little whining sound from the transmission could be completely normal. Just because we mentioned the power steering pump and the alternator pump doesnt mean that those are the only pulleys that could be creating the whining sound. Ma Subaru Forester makes whining noise when I accelerate: On the other hand, if the noise does not begin unless the vehicle is in motion, there must be issues with one or more gears and bearings. Therefore, there are several steps to fix it. It is also possible that your serpentine belt has failed. Subaru says: The new engines, especially the four-cylinders, are extremely efficient so they have very low friction. CrystalBlack2018 said: I just purchased a 2018 Impreza hatch with 5spd transmission and I'm constantly hearing a noise coming from the rear. Last week I was able to duplicate the sound during a drive, nearly the whole time. costs, Top Deals and After that, reinstall it following the reverse process. Basically I left a toll booth at a reasonable rate then floored it to pass a tractor trailer before the lanes reduced. There are a number of things that may cause a whining sound. In this guide, I cover each of the causes in-depth. These components work in harmony and allow the transmission to function properly. But what could that problem be, and where should you start looking? Why does this happen and how to get rid of this embarrassing problem? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Generally, a whining transmission is bad. Whenever you notice a low tranny fluid, check if theres a transmission fluid leak and fix it before topping the transmission. This locks out most of the noise, but if the whining is still making its way into your vehicle, youll have a better idea of where its coming from. Check it and change it if it is the reason, otherwise you risk clogging your engine in the long run. 1- Doesn't sound like a worn bearing. Johnznot reports that his Subaru dealer told him that the rattle upon startup was normal (due to the boxer engine design), and that no harm is being done. For a better experience, please enable JavaScript in your browser before proceeding. If you want to have this inspected and repaired, a certified technician from YourMechanic can come to your home Hi there. Subaru offered the following explanation for the distinct sound that may give some folks cause for concern. Additionally, if there are any warning lights on the vehicle, you should use your code scanner to determine whats going on. Check out our list of causes and fixes for this problem.
