POWERTRAIN TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
TORQUE CONVERTER STALL TEST - CONTINUED
Disconnect wiring harness connector (35) from electro-hydraulic control valve (36).
Start engine (TM 5-3805-291-10).
Warm transmission oil to normal operating temperature, approximately 167° to 220°F (75° to 105°C) (TM 5-3805-291-
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Hold brake pedal in depressed position for duration of test.
Fully depress right-side service brake pedal.
Shift transmission direction control and speed control to FOURTH SPEED FORWARD position (TM 5-3805-291-10).
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Do not use left brake pedal.
Correct torque converter stal speed is 2,050 minimum rpm.
If torque converter stall speed is too high engine power output could be too high.
If torque converter stall speed istoo low, engine may not be developing full power. There may be
parasitic load on engine.
Fully depress throttle control pedal. Allow engine rpm to stabilize, then observe tachometer (TM 5-3805-291-10).
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Allow engine coolant and transmission oil to cool. Wait two minutes between tests to allow transmission oil
Shift transmission direction control and speed control to NEUTRAL position.
Stop engine (TM 5-3805-291-10).
Connect wiring harness connector (37) to electro-hydraulic control valve (38).