loud humming

jwnewell · Dec 4, 2007

When I drive down the road I have a loud humming sound coming form the front driver wheel. When I press down on the breaks it stops immediately. Does anyone have any idea what could cause this problem?

metalmacguyver · Dec 4, 2007

possible wheel bearing.

please include the basic info for your truck.

model, year, cab size, engine type, tranny, 4x4 or 4x2.

jwnewell · Dec 4, 2007

it is a 1994 mazda b4000 4.0 a4ld? 4x4

jwnewell · Dec 4, 2007

anyone have any ideas?

Sunk · Dec 5, 2007

My dad had the same issue in basically the same truck (94 ranger 4x4 4.0 auto). Driver's side hummed got louder when turned to the left (i think) and quieter the opposite direction. The dealer told him the bearings were fine but his company's mechanic who also had a ranger told him to have them replaced anyway. He told the dealer to replace them and the noise was gone.

jwnewell · Dec 5, 2007

ok well I may just change them out in the morn I dont have class till 3 so that should give me time.

MAKG · Dec 5, 2007

With constant front end noises, always rule out the brakes first.

You might just need a front brake job. It's VERY common for worn disk brakes to make strange noises, even when not applied.

Wheel bearings are certainly possible, as are more mundane things like a piece of debris caught next to the rotor.

loud humming

jwnewell

10+ Year Member

metalmacguyver

Yeah, I built that.

jwnewell

10+ Year Member

jwnewell

10+ Year Member

Sunk

15+ Year Member

jwnewell

10+ Year Member

MAKG

15+ Year Member

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