Question about 2003 Ford Explorer

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Front end axle humming

Front end axle or rear axle makes humming noise and even louder turning corners.

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Check the oil in your front diff, may need replacing, worst case scenario is the diff bearing is worn

Posted on Jul 22, 2009

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Sounds like a wheel bearing going.

Posted on Jul 22, 2009

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1 Answer

Front end humming


noise is a bad sign, best is to have mechanic find it
some noises can be very very dangerous to driver for sure
the testing person,
makes noise only moving, in all gears
does it make noise moving in Neutral, coasting,
does doing that, and carefully stalling engine coasting with noise stop the noise.... yes, find a safe place to do that.
i use a steelman electronic stethoscope to find most noises.
it has a clamp on microphone, its like a $35 tools, way less that taking the whole car apart.
it will find which corner or better.
sounds to me like a bad wheel bearing.
or bent backing plate
or caliper guide pins jammed, ,rusted, or bean rotor. or? or ?
if the 4wd is disengaged, the front gears dont turn, so.....
in fact that is it prime purpose... if the the air pump is off and the lever retrated, its off. id check that tool... is front axle decoupled.....
the FSM covers this test in 1 page.
as does alldata.com ,....

Jan 22, 2014 | Jeep Cars & Trucks

1 Answer

Changing front axle assembly or wheel hub or both? Either way, need torque specs for all bolts.


you've got a bad axle shaft in the front and possibly a bad bearing in the hub. 4/wheel drive makes the front axle actually work. Theys no real pressure on these shafts when in 2/wheel drive.

Feb 01, 2013 | 2002 Chevrolet Silverado 1500

1 Answer

2004 pontiac grand prix gt. humming noise while driving. Louder at 25 mph or higher. Changed front passenger side hub bearings due to when turning slightly left humming quiets. I stol have humming....


I change both wheel hub bearings when one goes

Doesn't matter what stabilizer does--- the bushings need
to be done-- so you say

Maybe you replaced the wrong drive axle

Put the front tires on the back to see what happens

Nov 30, 2012 | Cars & Trucks

1 Answer

2000 Chevy Blazer 4x4...started making a horrible loud noise after my cruise control went out. I have recently replaced my hub and the brake pads and the CV axle. The noise comes and goes and only happens...


does it get louder above 45-60mph? and much quieter at low speeds. It could be wheel bearings, a rear differential or front differential. If its a grinding humming noise its wheel bearings, listenin to see if theyre coming from the front or rear, left or right, or both when your driving to know what wheel bearing are bad. If its a whinning noise, its probably a differential. check and listen to hear if its coming from the front or rear. Also, check for loose plastic around the wheels. Lastly check your tires for uneven or choppy wear. move your hands front to back on the top of the tire. does it feel really choppy and rough, maybe you just need new tires

May 04, 2011 | 2000 Chevrolet Blazer

2 Answers

It starts In 3rd and when in 5th while still accelerating, a noise which sounds like it's coming from drivers front side, the best I can describe it is it sound like a commercial paint shaker shaking a...


Noises from axles can be really deceiving. The sound is transfered throuh the transaxle and can resonate through the entire vehicle. The turning to the left thing makes it sound like a problem in the right wheel/axle area. Wheel bearings and axles tend to make worse noise when they are on the OUTSIDE of the turn. More of the vehicle weight is shifted to the outside due to centrifugal force. Thus, if the noise is louder when turning left, this puts the right axle to the outside of the turn and the most likely to be the source of the noise. (and vise-versa) The fact that the noise calms down while cruising makes me believe that it is not a wheel bearing. Wheel bearings can make more noise in turns, however, they usually make a "roaring" or loud "humming" noise that gets louder with speed. An axle is more likely to change or get louder according to engine load more than rotational speed. (Way worse while accelerating or climbing a hill) I would be taking a hard look at the right axle.

Jan 25, 2011 | 1997 Geo Metro

1 Answer

Humming in the front end, with a louder noise when turning.


Check your front wheel bearing and hubs when they defect the sounds increase on turns from one side to the other, due to the weight(load) displacement loaded on the bearings.
If your vehicle has front wheel drive this also can be the beginning of a defective front axle/axles C.V. joint(constant vellocity joint).

May 11, 2010 | 2004 Buick Rainier

1 Answer

I have humming from the front axle on my 2002 Blazer.


humming noise come from wheel bearing normally when you go in straith line and you turn just abit on one sid or the other if the noise louder on one side thats a bearing thanks pierre

Jan 11, 2009 | 2000 Chevrolet Blazer

1 Answer

Noise in front end, sounds like wheel bearings, 110,000 miles, rear end axles and bearings replaced, sounds still present, louder when making left turn when weight of vehicle shifts to front end right side


You say the rear wheel axles and bearings have been replaced, you mention nothing of the front wheels, you have the symptoms of a front wheel bearing being worn out, remove them and check for pitting in the bearing rollers or the bearing races, I am sure you will find a problem. Hope this helps solve your issue with the bearing noise.

Jul 26, 2008 | 2004 Ford Crown Victoria

1 Answer

HOWLING NOISES


Did you check your Transmission fluid and your differential fluids make sure there up and I don't know if you checked your rear wheel bearings or not, You can usually tell a wheel bearing when you are driving the car at highway speeds and you go around a corner and it get quite a bit louder Depending on what way you are turning if your turning right and it gets louder it will usually be the right side front or rear. the left usually the left front or back. some cases I have even heard Axles making a Howling Noise. Please let me know what you come up with. And Thanks in advance If I helped you out any. Bear001

Jun 17, 2008 | 2000 Honda CR-V

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