Noise Conditions

Drive Link Noise - A whine or growl that increases and then fades with vehicle speed and is most noticeable under light throttle acceleration. It may also be noticeable in P (park) or N (neutral) operating ranges with the vehicle stationary.
Final Drive Noise - A hum that is related to vehicle speed and is most noticed under light throttle acceleration.
Gear Noise - A whine most noticeable in first gear and reverse, and is related to vehicle speed. A gear noise condition may become noticeable or go away after an upshift.
Pump Noise - A high pitched whine that increases in intensity with engine RPM. This condition may also be noticeable in P (park) or N (neutral) operating ranges with the vehicle stationary.