GM Service Manual Online
For 1990-2009 cars only

Condition

Action

DEFINITION: Noise from the transmission in all shift lever positions

    • ATF pump worn or binding
    • Idler gears worn or damaged
    • Thrust washer seized up, worn, or damaged
    • RPM related ticking noise
    • High-pitched squeak

Inspect for proper alignment of the ATF pump and the torque converter housing. Improper alignment of the ATF pump and the torque converter housing may cause an ATF pump seizure.