When accelerating there is a humming noise

TRUCK REPAIR

MEMBER
2001 FORD RANGER
182,472 MILES

I am having a humming noise when I accelerate on the highway or even accelerate at regular speed as well. I have changed all the bearings wheel bearings inner and outer on the rear end on the on the front as well. So that is what is making me wonder if there is a torque converter problem making a winding noise as you accelerate at any speed? Transmission or rear end?

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,640 POSTS

Hi and thanks for using 2CarPros.

There are carrier bearings in the differential as well as a pinion bearing. Were they replaced? Is there any change in the sound when turning while accelerating? Is this two or four wheel drive? Automatic or manual transmission?

Let me know.

Joe

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Tuesday, December 11th, 2018 AT 8:10 PM

TRUCK REPAIR

MEMBER
3 POSTS

Two wheel drive and the sound seems to decrease when driving like right hand curve like! Automatic transmission.

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Tuesday, December 11th, 2018 AT 8:22 PM

JACOBANDNICKOLAS

MECHANIC
109,640 POSTS

If the sound is decreasing when turning right, Recheck the right front wheel bearings. Make sure they are properly adjusted and fully greased. When turning right, you remove some of the weight off the right side of the truck. Since the noise decreases, that tells me it's coming from one of the bearings on the right side.

Did you replace both the bearings and race?

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Wednesday, December 12th, 2018 AT 6:08 PM