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Hydraulic Pressure Test: Notes

NOTE: Hydraulic pressure test should be performed with transmission fluid temperature of 122-176°F (50-80°C).
  1. Ensure transmission fluid is at normal operating temperature. Remove plug from left side of transmission case, next to 3rd coast brake servo cover and install appropriate pressure gauge.
  2. Apply parking and service brakes. Start engine. Ensure idle speed is within manufacturer's specifications. Place transmission in "D" range.
  3. Check main line pressure at engine idle. Repeat procedure in "R" range. Compare all readings to specification. See LINE PRESSURE SPECIFICATIONS  table.
  4. Check main line pressure at full throttle (stall speed). Read highest pressure when engine reaches stall speed. Repeat procedure in "R" range. Compare all readings to specification.
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