Transmission & Drivetrain (A2/A3)Question 29 of 120
A whining noise from an automatic transmission that changes with engine speed but is present in Park and Neutral most likely points to:
a.A worn output shaft bearing
b.A slipping clutch pack
c.A failing transmission fluid pump
d.A worn CV joint
Explanation
Because the pump is driven by the converter hub whenever the engine runs, a pump-related whine is present in Park and Neutral and varies with engine rpm. Output-related noises appear only when the vehicle moves. Low fluid or aeration can produce similar sounds.
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