Stall Test - Suzuki 2006 SX4 Service Manual

Stall Test

This test is to check overall performance of automatic
transaxle and engine by measuring stall speed at "D"
and "R" ranges. Be sure to perform this test only when
transaxle 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.
Troubleshooting
Condition
Lower than standard level
in both "D" and "R" range
Higher than standard
level in "D" range
Higher than standard
level in "R" range
Higher than standard
level in both "D" and "R"
range
S6RW0C5104012
Possible cause
Engine output torque failure
Faulty one-way clutch of torque
converter
Malfunction of pressure control solenoid
valve (Low line pressure)
Malfunction of primary regulator valve
(Low line pressure)
Clogged oil strainer
Faulty oil pump
Slippery forward clutch
Faulty one-way No. 3 clutch
Leakage from "D" range fluid pressure
circuit
Malfunction of pressure control solenoid
valve (Low line pressure)
Malfunction of primary regulator valve
(Low line pressure)
Clogged oil strainer
Faulty oil pump
Slippery direct clutch
Slippery 1st / reverse brake
Leakage from "R" range fluid pressure
circuit
Malfunction of pressure control solenoid
valve (Low line pressure)
Malfunction of primary regulator valve
(Low line pressure)
Clogged oil strainer
Faulty oil pump
Faulty U/D brake
Leakage from both "D" and "R" range
fluid pressure circuit
Automatic Transmission/Transaxle:
1) Apply parking brake and block wheels.
2) Warm up engine to normal operating temperature.
3) Turn OFF all electrical loads.
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: 2,050 – 2,450 rpm
Correction / Reference Item
Inspect and repair engine.
Replace torque converter.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Overhaul or replace valve body assembly.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Overhaul or replace valve body assembly.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Overhaul or replace valve body assembly.
5A-29