Suzuki 2006 SX4, Service Manual

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Automatic Transmission/Transaxle: 5A-29
Stall Test
S6RW0C5104012
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.
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
Troubleshooting
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.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Slippery forward clutch Inspect. If NG, replace.
Faulty one-way No. 3 clutch 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.
Clogged oil strainer Replace.
Faulty oil pump Inspect. If NG, replace.
Slippery direct clutch Inspect. If NG, replace.
Slippery 1st / reverse brake 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.
Faulty U/D brake Inspect. If NG, replace.
Leakage from both “D” and “R” range
fluid pressure circuit Overhaul or replace valve body assembly.