Poor acceleration; engine revs up abnormally high when starting off in D, S, and R; stall speed high in R (A/T)

Poor acceleration; engine revs up abnormally high when starting off in D, S, and R; stall speed high in R

Probable cause(s)

	Drive plate defective or transmission incorrectly installed
	Torque converter clutch piston defective
	Torque converter defective
	4th accumulator defective
	4th clutch defective

Notes

	Check for an incorrectly installed transmission, and check the drive plate for wear and damage. Replace the drive plate if it is worn or damaged.
	Check the stall speed in R.
	Replace the torque converter.
	Check the 4th clutch pressure.
	Inspect the clutch clearance for the 4th clutch.
	Check the 4th accumulator piston, the O-ring, and the spring in the regulator valve body for wear and damage.