Excessive Shock or Engine Revs Up Abnormally High on 2-3 Upshift or 3-2 Downshift (A/T)

Excessive shock or engine revs up abnormally high on 2-3 upshift or 3-2 downshift

A/T clutch pressure control solenoid valve B defective

A/T clutch pressure control solenoid valve C defective

Transmission fluid pressure switch B (3rd clutch) defective

Foreign material in separator plate orifice

2nd accumulator defective

3rd accumulator defective

2nd check ball stuck

2nd clutch defective

3rd clutch defective

Notes

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

Notes

Test the solenoid valve function with the HDS.

Notes

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

Notes

Check for a clogged orifice in the transmission fluid pressure switch B (3rd clutch). If the orifice is clogged, remove it and clean the pressure switch.

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 and 3rd clutch pressures.

Notes

Inspect the 2nd and 3rd accumulator pistons, O-rings, and springs for wear and damage in the servo body.

Notes

Check the 2nd check ball for being stuck in the main valve body.

Notes

Inspect the secondary shaft, mainshaft, 2nd clutch, and 3rd clutch for wear and damage.

Notes

Inspect the clutch piston, clutch piston check valve, and 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 tolerance, replace the wave-plate. If they are OK, adjust the clearance with the clutch end-plate.

Notes

Inspect the 2nd and 3rd clutch feed pipes.

Notes

If the 2nd clutch feed pipe is scored, replace the end cover.

Notes

If the 3rd clutch feed pipe is scored, replace it and the O-rings under the feed pipe flange.

Notes

Replace the secondary shaft if the bushing for the 2nd clutch feed pipe is loose or damaged.

Notes

Replace the mainshaft if the bushing for the 3rd clutch feed pipe is loose or damaged.