humming noise when turning

[mekalue89]

Im not that mechanically inclined but when i turn right my car is making a loud humming noise, the sound is constant.. just a hummmmmmm, but when i turn left or go straight it goes away so it is not power steering, im suspecting a wheel bearing or ball joint, but im not sure, any help would be greatly appreciated
thanks

[steelow]

I think you need to add power steering fluid. My car used to do the same thing, if not worse. I couldn't figure out why for a very long time, but when I added the power steering fluid, like a miracle, the humming sound totally dissapeared. Please try it, it might work for you too.

[Negatoro]

Do the volume/pitch of the buzzing noise change with speed?

[mekalue89]

its not the power steering, its full, i also knew this because it does not do it while the car is parked .. only like 40-50+ and the faster you go.. the louder it gets

[Negatoro]

If the noise could also be described as a hum/grind/low growl then suspect wheel bearing/hub assembly.

Jack the front wheels off the ground, put it in neutral and spin each front wheel. If a wheel bearing is bad it will be evident in the ugly sound heard.

In the near future take notice of any vibration in the steering wheel at speed. Also... Oh crap [You posted about your ABS light on].

Another clue to check the wheel bearings is an illuminated ABS light. If water contaminated the hub, the water fouls the wheel speed sensor in that hub which in turn triggers the ABS light.

-Mark T.

[mekalue89]

there is no vibration when turning and thanks, it just started snowing here so its not the best idea to try jackin it up n spinning the wheel, but ill try it and see what comes of it, also i've had the car for about 3 months, the abs light has always been on and the humming just started like a week ago, i just thought i'd state that.

thanks for the help, ill get back to ya with results.

[Negatoro]

If you can't tell the bad bearing from listening to the spinning wheel you can test the sensor with a volt meter. In this thread, Blue Bowtie explains how to check the sensors electronically. You still need to get the tires off the ground to spin them.

Make sure you raise the front end safely with the parking brake set, rear wheels chocked, and the front end's weight eventually supported securely.

-Mark T.

[pernit]

Im experiencing the same problem, It seemed to happen the day after I drove thru a muddy car park, some mud might have got in the joint or not i dont know, (hopefully not), when i turn the steering wheel it makes this small humming noise and i can feel it on the steering wheel, I looked at the power steering fluid and that is 1/3 full. (will it go away if I fill it up). Also when i start the car in the morning it seems to take a few seconds to start and a small cloud of white smoke and then its ok (is this normal for a 2.5 Turbo Diesel?)

Thank you

[richtazz]

Welcome to AF Pernit. This post is 4 months old, so it would be best to start a new thread (preferably in the Jeep Cherokee forum) so more people will see your problem that know more about your specific vehicle.