GM Service Manual Online
For 1990-2009 cars only

Condition

Action

DEFINITION: Poor acceleration; flares on start-off in the R position; stall speed high in the R position

    • Shift solenoid valve C inoperative
    • Shift cable broken or out of adjustment
    • Reverse CPC valve inoperative
    • 5th accumulator inoperative
    • 5th clutch inoperative
    • 5th clutch slipping
    • Inspect the MIL.
    • Scan for stored DTCs.
    • Inspect for loose connectors.
    • Inspect the O-ring, and the shift solenoid valve for seizure.
    • Inspect for a loose shift cable at the shift lever and the transmission control lever.
    • Inspect the 5th clutch pressure.
    • Inspect the clutch piston and the O-rings.
    • Inspect the spring retainer for wear and damage.
    • Inspect for a slipping 5th clutch.
    • Inspect the clutch backing-plate- to-top-disc clearance. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage. If the discs and plates are worn or damaged, replace the discs and plates as a set. If the discs and plates are in satisfactory condition, adjust the clutch backing plate clearance.