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ATGE/A340 Automatic Trans (GE) — Mechanical System Test, page 44

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Mechanical System Test — MK4 Supra A340 Automatic Trans (GE), page 44
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Page text (OCR transcript)
AT1–44
AT340E (2JZ–GE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING

MECHANICAL SYSTEM TEST
STALL TEST

The object of this test is to check the overall performance of the transmission and engine by measuring
the stall speeds in the D and R positions.

NOTICE:
• Do the test at normal operating fluid temp. 50–80 °C (122–176 °F).
• Do not continuously run this test longer than 5 seconds.
• To ensure safety, conduct this test in a wide, clear, level area which provides good traction.
• The stall test should always be carried out in pairs. One technician should observe the
conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.

MEASURE STALL SPEED
(a) Chock the 4 wheels.
(b) Connect a tachometer to the engine.
(c) Fully apply the parking brake.
(d) Keep your left foot pressed firmly on the brake pedal.
(e) Start the engine.
(f) Shift into the D position. Fully depress the accelerator pedal with your right foot. Quickly read the stall
speed.
Stall speed:
2,450 ± 150 rpm
(g) Do the same test in R position.
Quickly read the stall speed.
Stall speed:
2,450 ± 150 rpm

Parking Brake

D
or
R

TE0047