Line Pressure Test: Troubleshooting

Condition	Possible Cause	Action
Higher than standard level in each range	Malfunction of pressure control solenoid valve (High line pressure)	Inspect. If NG, replace valve body assembly .
Higher than standard level in each range	Malfunction of primary regulator valve (High line pressure)	Replace valve body assembly .
Lower than standard level in each 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 .
	Defective O/D clutch	Inspect. If NG, replace .
	Leakage from both "D" and "R" range fluid pressure circuit	Inspect. If NG, replace valve body assembly .
Lower than standard level in "D" range	Fluid leakage from direct clutch	Inspect. If NG, replace .
	Defective O/D clutch	Inspect. If NG, replace .
	Leakage from "D" range fluid pressure circuit	Inspect. If NG, replace valve body assembly .
Lower than standard level in "R" range	Fluid leakage from direct clutch	Inspect. If NG, replace .
	Defective O/D clutch	Inspect. If NG, replace .
	Fluid leakage from reverse brake	Inspect. If NG, replace .
	Leakage from "R" range fluid pressure circuit	Inspect. If NG, replace valve body assembly .