This is less of a safety concern and more of a convenience concern, as your car could end up failing to start tomorrow, next week, or next month—it’s tough to make an exact prediction. Without going into too much detail about what a CV joint is, I will just give you a basic idea of its function and why it might have failed. Bad Alternator. If your car makes noise when accelerating or turning, don't ignore it. Here are the most common causes of whining noises when accelerating: 1. Previously, the only time my car made any kind of "odd" or louder noise would be the first time I turned it on after not driving it for awhile, but it would stop within a minute or so. I have switched to neutral and even turned off the engine momentarily (after ensuring it is safe on a lightly traveled road) to be sure that it is not from the engine. Pinging (also called pre-ignition or detonation) can also be the result of carbon deposits, a bad knock sensor, overheating or incorrect ignition timing. Rear and Front Axles Clogged Exhaust Filters. 2. When your car steering wheel is not in a neutral position, that can cause whining or humming noise in the car. Do you feel vibration in your car while driving, but aren't sure what the cause is? If your car is making a clicking noise when turning, it is likely you have an outer CV joint (constant velocity joint) that has failed because of a torn boot or old age, most likely a torn boot. The humming starts off with a lower tone (almost like a small plane flying overhead) and gets louder at certain speeds (35-40mph; 55-65 mph). If your engine is making a rattling noise, the first thing to suspect is low engine oil. Noise is high pitched with a modulating frequency of about 100 hz. When a problem can cause a shift in the proper angle of a universal joint, a vibration may be felt at low speeds. Power Steering Fluid. Subaru Forester Whining Noise When Accelerating. It may be low on fluid, be past its prime, or need a jump. Only happens f … read more Cracked Flywheel or Flexplate Repair Costs. The … The Five Overlooked Car Maintenance Items How Preventative Maintenance Can Help You Avoid Catastrophic Repair Costs To rule out obvious simple causes, check the fluid level in the transmission per the instructions in the owner’s manual (follow carefully; otherwise reading will be meaningless). Hi everyone! Dry jounce bushing tends to be another prime reason behind such noises. Noise: Howling while accelerating over a small speed range (gears previously quiet) Cause: Worn gear set due to lack of lubrication or overloading. Also, the other noise I described at the end when I said the car sometimes sound like a kids battery operated car must be the same noise when some peoples describe the mt82 transmission sounding like a blender in low speed. If you hear a pinging or rattling sound when accelerating, low-octane fuel could be the cause. Recommended to you based on your activity and what's popular • Feedback Re thumping, it was a bad explanation on my part - it's definitely a clunk sound … Some modern engines naturally rattle very strongly during a cold start. If the belt goes loose, that can cause some serious impact including noise while accelerating. I managed to pull my van to the curb with the engine still running, but I could not get the van to move forward or backward. I drive a 2011 Ford Focus 2.0 tdci, the car makes a funny low “whaling whining” noise when I slow down to a very slow speed, and keeps on doing this even after I come to a complete stop, it doesn’t happen everytime but it still happens. You should check out for alignment problems in the car to solve that problem out. Not many countries have a good level of fuel quality, therefore a good brands of cars such as Mercedes, BMW, Audi and many others car engines making a noise while accelerating due to low quality of fuel, in that case a person should have to switch to high-octane fuel or use high octane lubricant for these cars to avoid rattling sound. Low Engine Oil. Symptom: Low, Growling Sound When Turning the Steering Wheel . A rusty backing plate (the shield that protects the brake rotor from the elements) can become deformed and rub against the brake rotor, creating a noise. Since they rely … I was just pulling into a parking space approximately an hour from my home when the car starting making this really loud grinding noise and the brake pedal was very stiff. A slow engine crank paired with this unfortunate noise means your battery is on the fritz. These common car noises can spell trouble and cost a lot of money, especially if ignored. Ticking. Squealing noise upon acceleration at low speeds, usually when accelerating from a stop. A whining sound when accelerating is almost always caused by a bad accessory attached to your Forester’s engine. Noise: Howling after gear set installation Cause: Faulty gears or improper installation. If any of the vacuum hoses around your engine become damaged or worn out, you could experience air leakage from them.… If the torque converter has an internal fault you could experience poor acceleration along with noise. Transmission Problems. Plan to take the car to the shop later this week. That might explain the clunking noise when I accelerate at low speeds (when there is more force and momentum on the engine). A worn-out CV joint needs replacing immediately, so contact the garage right away. 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