GM Service Manual Online
For 1990-2009 cars only

Condition

Action

DEFINITION: Poor acceleration; flares on start-off in the D, I and R positions; stall speed test results are low or below specification

    â€¢ TCC solenoid valve inoperative
    â€¢ Torque converter one-way clutch inoperative
    â€¢ Torque converter one-way clutch slipping
    â€¢ Engine output low
    â€¢ Engine throttle valve closed
    â€¢ Lock-up clutch piston inoperative
    â€¢ Lock-up shift valve inoperative
    â€¢ Inspect for a stuck lock-up valve in the valve body.
    â€¢ Perform an engine output/diagnostic test to determine if the engine is operating to specification.