Excessive Shock or Flares on 4-5 Upshift or 5-4 Downshift

Excessive shock or flares on 4-5 upshift or 5-4 downshift

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

Foreign material in separator plate orifice

4th accumulator defective

5th accumulator defective

4th clutch defective

5th clutch defective

Clearance between clutch end-plate and top disc incorrect

Notes

Test A/T clutch pressure control solenoid valve A or B with the HDS A/T Clutch Pressure Control Solenoid Valve A and B Test.

Notes

Test A/T clutch pressure control solenoid valve C with the HDS A/T Clutch Pressure Control Solenoid Valve C Test.

Notes

Check the stall speed in R A/T Stall Speed Test.

Notes

Check the 4th and 5th clutch pressures A/T Pressure Test.

Notes

Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF pipes, the ATF joint pipe, and the O-rings for wear and damage.

Notes

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

Notes

Inspect the 4th and 5th clutches for wear and damage.

Notes

Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage, and inspect the clutch wave-plate height. If the discs and the plates are worn or damaged, replace them as a set. If the clutch wave-plate height is out of the tolerance, replace the clutch wave-plate. If they are OK, adjust the clearance with the clutch end-plate.

Notes

Check the 4th and 5th accumulator pistons, the O-rings, and the springs in the accumulator body for wear and damage.