Squealing noise/whining noise...any thoughts?
#1
08-10-2004, 09:03 PM
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Squealing noise/whining noise...any thoughts?
I bought my truck about 2 months ago, the 90 F-250. Ever since i bought it at slower speeds, i can hear it from about 30 mph and under. I can hear this whining/squealing noise. When i apply the brakes however this noise goes away. Tonight i stuck my head out the window and it sounds like its coming from the rear but i dunno. Anyone know what it might be? Brakes or bearings?
#2
08-10-2004, 11:09 PM
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I would check the u joints on the drive shaft. If there is slack on eather shaft (since I am asuming the truck is long wheel base 2wd)the needle bearings inside the u joint are most likely shot. if it's the u joints i would take it to the shop to have them replace ( unless you have the right tools to press the u joints out the drive shaft) Good Luck
#5
08-11-2004, 02:02 PM
As a mechanic this is how I would find it.
- Lift up the rear of the vehicle and place on good jack stands - allow at least 2" of clearance under the tires.
- Block the front wheels very well or better yet lift the front axle and put on stands as well.
- Get a friend you trust to get into the cab and start the vehicle and put into gear (I use second.)
- CAREFULLY AND CAUTIOUSLY walk around the vehicle untill you can determine approx where the noise is coming from. Climb underneath if necessary.
- Get your operator to gently apply and release the brakes or vary RPM as required to find the noise.
THIS IS HOW I WOULD DO IT. I AM ALSO A PROFFESIONAL AND CARE MUST BE TAKEN WHEN CLIMBING AROUND A VEHICLE WITH TIRES AND DRIVESHAFTS SPINNING - NO LOOSE CLOTHING OR JEWELRY ETC. DANGLING AROUND!
Being how the noise disappeared when the brakes are applied I would say it is in the brakes but at least this way you will know which wheel to pull.
89 F350 7.5 4x4 4" lift
- Lift up the rear of the vehicle and place on good jack stands - allow at least 2" of clearance under the tires.
- Block the front wheels very well or better yet lift the front axle and put on stands as well.
- Get a friend you trust to get into the cab and start the vehicle and put into gear (I use second.)
- CAREFULLY AND CAUTIOUSLY walk around the vehicle untill you can determine approx where the noise is coming from. Climb underneath if necessary.
- Get your operator to gently apply and release the brakes or vary RPM as required to find the noise.
THIS IS HOW I WOULD DO IT. I AM ALSO A PROFFESIONAL AND CARE MUST BE TAKEN WHEN CLIMBING AROUND A VEHICLE WITH TIRES AND DRIVESHAFTS SPINNING - NO LOOSE CLOTHING OR JEWELRY ETC. DANGLING AROUND!
Being how the noise disappeared when the brakes are applied I would say it is in the brakes but at least this way you will know which wheel to pull.
89 F350 7.5 4x4 4" lift
#7
08-11-2004, 10:14 PM
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