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Humming noise can also be caused by a failing input shaft bearing located in the transmission, so the noise will be under the car, the higher the speed, the Estimated Reading Time: 7 mins.
Over the last couple of days, I have noticed a humming noise while driving my truck. At first I thought that since it has gotton pretty cold here the last couple of days, that it could be the tires not warming up. But last night, the noise got so loud that I could here it over the radio. It changes sound/volume with the change in speed of the politedriving.com Interaction Count:
Common Car Noises and What They Mean
Before you turn up the radio a little louder in hopes that sound goes away, take a closer listen and find out where that sound is coming from. Learning a little bit about some of the common noises your car might make, can help you identify what the problem may be and help determine when you should visit your mechanic. That might be the difference between some preventative maintenance and a costly repair bill. Here are a few common car sounds and — and helpful tips on what to do about them.
Screeching sound under the hood Probable cause: A loose or worn serpentine belt. What to do about it: Your serpentine belt drives several vital pieces of equipment in your car, including the alternator , water pump, power steering pump, air conditioning compressor and radiator fan. If you think the screeching sound is a loose or worn belt, make an appointment to have it looked at. Chugging or rattling noises Probable cause: Exhaust system.
What to do about it: A damaged exhaust system can produce a veritable symphony of sounds and each unique sound may mean something different. Take your car in for an exhaust system check. A low-pitched humming from under your car Probable cause: This could be a few different issues.
Note when the noise happens so you can better help your mechanic diagnose the problem. If your car makes a humming noise, it could mean the differential needs lubricant, the transmission is failing or the universal joints or wheel bearings are wearing out. What to do about it: Pay close attention to what happens before and when your car starts making the sound.
Try to give your mechanic as much information as possible to work with; without a thorough, professional inspection, it can be difficult to tell what the problem is. Squealing or loud grinding sound from your brakes Probable cause: Worn out brake pads. Get your car to a dealership or brake repair shop ASAP. A thudding noise from your tires Probable cause: Low air pressure in your tires or improper tire alignment.
Improper alignment wears out your tires faster and can result in poor gas mileage or a bumpy ride. Scraping noises from windshield wipers Probable cause: Your wiper is wearing down. What to do about it: Fix this issue as soon as possible.
If the worn-out wiper scratches your windshield, it can be expensive to replace. Get it checked out. When it wears out, it loses the grease that keeps the axles lubricated. Get an oil change as soon as you can. Create a policy that fits your specific needs and helps keep you and your car protected.