Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 514 / 1164

AUTOMATIC TRANSMISSION -
On-vehicle Service
23-54
2. Check both rear wheels (left and right).
3. Pull the parking brake lever on, with the brake pedal
fully depressed.
4. Start the engine.
5. Move the selector lever to the D position, fully depress
the accelerator pedal and take a reading of the maximum
engine speed at this time.
Caution
1.
The throttle should not be left fully open for any
more than eight seconds.
2. If carrying out the stall test two or more times,
move the selector lever to the N position and run
the engine at 1,000 r/min to let the automatic
transmission fluid cool down before carrying out
subsequent tests.
Standard value
Stall speed:
<4G93> 2,200 - 2,700 r/min
<4G64> 2,300 - 2,800 r/min
6. Move the selector lever to the R position and carry out
the same test again.
Standard value
Stall speed:
<4G93> 2,200 - 2,700 r/min
<4G64> 2,300 - 2,800 r/min
TORQUE CONVERTER STALL TEST JUDGEMENT
RESULTS
1. Stall speed is too high in both D and R ranges
D Low line pressure
D Low & reverse brake slippage
2. Stall speed is too high in D range only
D Underdrive clutch slippage
3. Stall speed is too high in R range only
D Reverse clutch slippage
4. Stall speed too low in both D and R ranges
D Malfunction of torque converter
D Insufficient engine output