Excessive Shock or Flares on 1-2 Upshift or 2-1 Downshift

Excessive shock or flares 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 Shift Solenoid Valve A and B Test.

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.

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.

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.

Notes

Test the 2nd clutch transmission fluid pressure switch operation with the HDS.

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

Replace the secondary valve body.

Notes

Check the 2nd air check valve (ball) in the torque converter housing for a stuck ball. If the check valve (ball) is stuck, replace the 2nd air check valve.