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Home >> Mitsubishi >> 1992 >> Montero LS >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul - V4AW2 >> Performance Tests >> Road Test >> "D" Position Test

"D" Position Test

  1. Engine and transmission must be at normal operating temperature. Shift transmission into "D" position with OD switch in ON position. Ensure transfer case is in 2H (2WD-High) position. Depress accelerator pedal to full throttle. Ensure all upshifts and downshifts occur at specified points. See Figure .
  2. Ensure lock-up occurs at appropriate speeds. Lightly depress accelerator pedal. If excessive increase in engine RPM exists, lock-up did not occur.
    NOTE: A 3-OD upshift will not occur with a throttle valve opening greater than 86 percent or if coolant temperature is below 122°F (50°C). A OD-3 kickdown is always possible with throttle valve opening of 86 percent or greater. Lock-up does not occur at coolant temperatures below 158°F (70°C).
  3. Check for shock and slippage during all upshifts. Drive vehicle in 3rd and OD. Check for abnormal noise and vibration. While driving in OD, "D", 3rd and 2nd gear, ensure kickdown speeds in 2-1, 3-2 and OD-3 are within specification. Check for shock and slippage during kickdown.
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