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

Check for a stored DTC, and check for loose connections.

Notes

Inspect the 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

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

Notes

Inspect the A/T clutch pressure control solenoid valve body gasket, the ATF feed pipes, 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

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 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 plates for wear and damage, and inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace them as a set. If the wave-plate height is out of the tolerance, replace the 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.