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What causes a humming vibration when the vehicle reaches a speed of approximately 35?
Wiki User
∙ 14y ago
I am assuming you have overdrive in the unit.
If you have been pulling a trailer in o/d for any length of time
you my have damaged the clutches in the transmission.
you can put up with it but eventually you'll have to have the trany
rebuilt. pull the trailers in drive not overdrive.
The other option may be a bad valve in the valve body or a piece of clutch
material is wedged in a valve.
have a certified transmission mechanic test drive the unit before doing costly repairs.
Wiki User
∙ 14y ago
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