A whining or humming noise that changes with vehicle speed, engine speed or gear selection can sometimes indicate a transmission problem, but the transmission is not the only possible source. Bearings, fluid-related conditions and other drivetrain components can produce similar noises.
Because sound can travel through a vehicle and make the source difficult to identify, diagnosis is important. Certified Transmission in Bellevue can inspect and test the vehicle to determine where the noise is actually coming from before recommending repairs.