Excessive Shock or Engine RPM Abnormally Rises on 1-2 Upshift or 2-1 Downshift (A/T)

Excessive shock or engine rpm abnormally rises on 1-2 upshift or 2-1 downshift

Shift solenoid valve A defective

A/T clutch pressure control solenoid valve A defective

A/T clutch pressure control solenoid valve B defective

A/T clutch pressure control solenoid valve C defective

Transmission fluid pressure switch A (2nd clutch) defective

Foreign material in separator plate orifice

A/T clutch pressure control solenoid valve A accumulator defective

2nd air check valve stuck

2nd clutch defective

Clearance between clutch end-plate and top disc incorrect

Notes

Inspect the shift solenoid valve A function with the HDS Testing and Inspection.

Notes

Check for a seized shift solenoid valve, and inspect the O-rings.

Notes

Inspect A/T clutch pressure control solenoid valve A with the HDS A/T Clutch Pressure Control Solenoid Valve A, B, C, And D Test (A/T).

Notes

Inspect A/T clutch pressure control solenoid valve B with the HDS A/T Clutch Pressure Control Solenoid Valve A, B, C, And D Test (A/T).

Notes

Inspect A/T clutch pressure control solenoid valve C with the HDS A/T Clutch Pressure Control Solenoid Valve A, B, C, And D Test (A/T).

Notes

Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.

Notes

Check the 2nd clutch pressure A/T Pressure Test.

Notes

Inspect the clutch clearance for the 2nd clutch.

Notes

Check the A/T clutch pressure control solenoid valve A accumulator piston, the O-ring, and the springs in the secondary valve body for wear and damage.

Notes

Check for a stuck 2nd air check valve in the torque converter housing.