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eauto
eauto, The Car Guy
Category: Jeep
Satisfied Customers: 15062
Experience:  ase mechanic 16 Plus years in the field
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2004 Jeep Grand Cherokee. 4 x 4 Grumbling noise when

Customer Question

2004 Jeep Grand Cherokee. 4 x 4 Grumbling noise when braking. Humming noise constantly heard when driving over 50 mph. Driver front wheel had play in it and changed out wheel nearing thinking it was that . Same issues after installing wheel hub bearing. What could it be?
Submitted: 2 months ago.
Category: Jeep
Expert:  eauto replied 2 months ago.

have you checked the frt diff?

Customer: replied 2 months ago.
Brakes appear good I changed them a year ago and pads are 60 percent rotors don't look bad either don't think it's brakes because I hear the noise while driving do you agree
Customer: replied 2 months ago.
No on my list for tomorrow. What should I do? Check fluid anything else
Expert:  eauto replied 2 months ago.

do you have access to a lift?

Customer: replied 2 months ago.
No unfortunately
Expert:  eauto replied 2 months ago.

have you checked the gear oil?

Customer: replied 2 months ago.
In the diff? No
Expert:  eauto replied 2 months ago.

can you?

Customer: replied 2 months ago.
I can drive on ramps I have how exactly do I check? Amy pictures of the diff you could send
Customer: replied 2 months ago.
What are you thinking? Wouldn't I get noise all the time if it was the oil
Customer: replied 2 months ago.
It sounds awful when I a, braking hums when driving over 50
Expert:  eauto replied 2 months ago.

im thinking the center bearings or pinion bearing is failing..generally a run them on a lift and pinpoint the noise with a mechanic stethoscope..ive changed lots of frt diffs for similiar noises