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humming

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Question
Wheel keeps humming, I think it's a wheel bearing
Hi, thanks for writing in. I believe you're on the right track. Wheel bearing failures are common on many GM vehicles particularly their trucks and SUVs. I would recommend having your wheel bearings inspected with a mechanic's stethoscope to determine...
Question
Humming noise
Hi, thanks for writing in. My personal experience with a humming noise while driving could be 2 things. You may need a front end alignment or wheel bearing. To check your wheel bearings you will need to jack up the...
Question
Noise coming from rear wheel area
This kind of hum sound generally comes from tires that may be out of balance or which need to be rotated; however, if you have just rotated them recently, this should not be an issue unless you have an odd...
Question
Humming noise, wheel bearing issue, and two evap leaks
Regarding the right, front wheel bearing, you can confirm this diagnosis by turning left at moderate speeds (i.e. freeway on-ramp). The noise will increase during the turn (which loads the right front wheel bearings). Regarding the squeal while turning...
Question
EPC Light
Hello, thanks for writing in about your Volkswagen Jetta. This is a common issue when the mass air flow sensor is failing or the throttle position sensor is faulty. This will cause the intermittent hesitation and spikes in RPM's as...
Question
Rumbling when coasting - 2007 Chevrolet Trailblazer
Hello. A wheel bearing going bad will definitely cause a rumbling or droning sound as you describe. This will generally get worse as you accelerate as more force is exerted on the bearing and it is caused to turn faster....
Question
With car off, exterior and interior lights start flashing
It sounds like somehow the anti theft system was activated and drained the battery. Try locking all of the doors from the inside and close them. Then lock, unlock, lock and unlock the doors to see if the problem persists....
Question
Low humming sound
Hi, thanks for writing in. If you are hearing a humming sound from around the gas tank, it is likely that you are hearing your fuel pump running. If this is the case, the fuel pump making a slight humming...
Question
Humming noise
It is possible that you could be having an issue with your alternator bearing. The alternator is responsible for charging the battery and is ran by the serpentine belt. The pulley that is connected to the alternator has a bearing...
Question
Car producing loud hum when accelerating, engine stalls before starting up
I believe the humming sound you are hearing could be related to a faulty wheel bearing. When wheel bearings dry out they will begin to make humming or growling noises when the vehicle is accelerating. I would recommend having your...
Question
Need help diagnosing steering problem after hitting a curb.
It sounds as though you may have bent a tie rod. The tie rods are the links between the steering and the wheels, and they are normally pretty tough, but a good solid whack can bend them. Additionally, the new...
Question
Car making humming noise when driving, but when I stop at the ref Light I don't hear the sound. Also when I go over 40mp get loud.
Hi and thank you for contacting YourMechanic. The problem seems to be either a wheel rubbing brake rotor for the lug nuts not being tight enough or a wheel bearing that is worn out. The noise occurs only when the...
Question
Loud humming noise coming from the right front tire.
Hello there, many different faults will cause a humming noise from the front tire of your 2008 Kia Optima. The most common would be a failing tire, wheel balance, wheel bearing, dragging brake pad, sticking caliper, or a CV axle...
Question
What would my next step be? Wheel bearings are driving me crazy!!
This is a common sound when wheel bearings are badly worn and need to be replaced. When they wear out, the bearings begin to grind metal on metal which as you know creates an intense heat. This can be dangerous...
Question
Replaced water pump (no noise before just leaky) now there's loud humming noise and I don't have heat. Haven't tried driving yet.
Hi there. From the description you have provided, you replacing the water pump and now you have a new noise and no heat, are an combination of things going on. First, the loud humming noise coming from the water pump/timing...
Question
Humming noise coming from front end
If the tires are worn irregularly and/or have any internal damage (such as a belt separation) that will create a lot of noise of the type you are hearing. The other possibility is defective wheel bearings (quite common). I would...
Question
Humming sound after 30 mph - 2007 Toyota Corolla
This is definitely something that may be caused by uneven tire tread wear. This may also be caused by improper alignment which is what tends to cause the uneven tire tread wear to begin with. This may also be potentially...
Question
Timing change
Hey there. The sound does not increase with speed or while turning the vehicle left or right? If the vehicle only makes the sounds while moving, you may even have a faulty wheel bearing assembly. A worn wheel bearing will...
Question
There is a humming coming from the front tire. I checked the tire for a possible wheel bearing issue but the vertical shake of tire was solid.
A tight feeling when shaking the tire vertically does not always completely rule out the wheel bearing. A technician with a stethoscope or electronic hearing device can listen to the wheel as it is rolling and compare the type of...
Question
My car hums when I try to start it on cold mornings. Battery starter and alternator tested and all are fine. I need help please!
A car battery can appear to be 100% "charged" and still be essentially useless. The only way to determine the viability of a "used" battery is to perform a load test on the battery at a professional battery shop or...

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