GM Service Manual Online
For 1990-2009 cars only

Check

Causes

DEFINITION: One of the two following conditions occurs during a fourth to fifth gear steady throttle upshift, or a fifth to fourth coast, or a light to moderate throttle detent downshift:

    • Harsh shift feel
        An unacceptable quick gear change occurs.
    • Soft shift feel
        An unacceptable long gear change occurs.

Coast Clutch

    • Damaged or cut piston
    • Damaged or worn clutch plates
    • Damaged or stuck ball check valve

Intermediate Clutch

    • Damaged piston, 2-3, 3-2 shift
    • Damaged or worn clutch plates, 2-3, 3-2 shift

Overdrive Clutch

    • Damaged or worn clutch plates
    • Damaged or worn piston

Pressure Control Solenoid

Damaged

Fluid Pump

Damaged