Loud Noise in front end.

Humming Noise Front End- Any Ideas? - Ford Explorer and Ranger ...

www.explorerforum.com > ... > Stock 1995 - 2001 Explorers

Dec 18, 2008 - 19 posts - ‎16 authors
Have a 98- Eddie 4.0 SOHC, 4WD with a 100,000 mi. When driving it has a humming noise, it almost sounds like a bad tire, or a ... I start to hear the humming noise at 20 mph, it is very loud at 40 to 50 mph ... 94 XLT-95 FX4. humming gets louder as speed increases
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Wheel bearing? If you turn left and it gets louder. It is the right wheel bearing. And vice versa.

If the noise is coming from engine it is the valves tapping on the heads

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Road noise is from tires and the type of road surface you are on.

Need the vehicle to road test

Can't guess at it from the internet

Go for a road test & take a mechanic
along for the ride

Sounds like one or both of the front wheel bearings are bad. Very common on all GM vehicles. Take to a shop and have inspected. Can you hear it more on one side than the other?

You have a hub/wheel bearing going out. You need to jack up the vehicle on each side. Grab the top and bottom of the wheel and try to move it in/out at the top and bottom. If this does not work then roll the wheel as fast as you can and see if you can hear which one it is. Good Luck.

You have a bearing or a brake problem. Either requires the attention of a good repair shop or a dealer.
Bearings may need to be replaced or lubricated (no expert here); if brakes, it is likely warped rotors which will need to be replaced and do the pads as well. Prepare for a $200-300 bill.