5A-32 Automatic Transmission/Transaxle:
Troubleshooting
Stall Test
S5JB0A5104014
This test is to check overall performance of automatic transmission and engine by measuring stall speed at “D” and
“R” ranges. Be sure to perform this test only when transmission fluid is at normal operating temperature and its level is
between FULL and LOW marks.
CAUTION
!
• Do not run engine at stall more than 5 seconds continuously, for fluid temperature may rise
excessively high.
• After performing stall test, be sure to leave engine running at idle for longer than 1 minute before
another stall test.
1) Apply parking brake and block wheels.
2) Install tachometer.
3) Start engine with select lever shifted to “P”.
4) Depress brake pedal fully.
5) Shift select lever to “D” and depress accelerator pedal fully while watching tachometer. Read engine rpm quickly
when it has become constant (stall speed).
6) Release accelerator pedal immediately after stall speed is checked.
7) In the same way, check stall speed in “R” range.
8) Stall speed should be within following specification.
Engine stall speed
Standard: 2,600 – 3,000 rpm
Troubleshooting
Condition Possible cause Correction / Reference Item
Selected gear is incorrect Faulty valve body component Replace valve body assembly.
Faulty clutch or brake Inspect clutch and brake. If any parts are faulty,
replace them.
Condition Possible cause Correction / Reference Item
Lower than standard level
in both “D” and “R” range
Engine output torque failure Inspect and repair engine.
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.
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