Stall Test: Troubleshooting

TROUBLESHOOTING CHART

Condition	Possible Cause	Action
Lower than standard level in both "D" and "R" range	Engine output torque failure	Inspect and repair engine.
Lower than standard level in both "D" and "R" range	Faulty one-way clutch of torque converter	Replace torque converter.
Higher than standard level in "D" range	Malfunction of pressure control solenoid valve (Low line pressure)	Inspect. If NG, replace valve body assembly.
	Malfunction of primary regulator valve (Low line pressure)	Replace valve body assembly.
	Slippery O/D clutch	Inspect. If NG, replace.
	Slippery forward clutch	Inspect. If NG, replace.
	Faulty O/D one-way clutch	Inspect. If NG, replace.
	Faulty one-way clutch No. 2	Inspect. If NG, replace.
	Leakage from "D" range fluid pressure circuit	Overhaul or replace valve body assembly.
Higher than standard level in "R" range	Malfunction of pressure control solenoid valve (Low line pressure)	Inspect. If NG, replace valve body assembly.
	Malfunction of primary regulator valve (Low line pressure)	Replace valve body assembly.
	Slippery direct clutch	Inspect. If NG, replace.
	Slippery reverse brake	Inspect. If NG, replace.
	Faulty O/D one-way clutch	Inspect. If NG, replace.
	Leakage from "R" range fluid pressure circuit	Overhaul or replace valve body assembly.
Higher than standard level in both "D" and "R" range	Malfunction of pressure control solenoid valve (Low line pressure)	Inspect. If NG, replace valve body assembly.
	Malfunction of primary regulator valve (Low line pressure)	Replace valve body assembly.
	Clogged oil strainer	Replace.
	Faulty oil pump	Inspect. If NG, replace.
	Leakage from both "D" and "R" range fluid pressure circuit	Overhaul or replace valve body assembly.