Line Pressure Test
CAUTION:
Carry out the Line Pressure Test prior to carrying out the STALL SPEED TEST . If line pressure is low at stall, do not carry out the Stall Speed Test or further transmission damage will occur. Do not maintain wide-open throttle (WOT) in any transmission range for more than five seconds or transmission damage may occur.
NOTE:
Carry out shift linkage check prior to carrying this test; refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS
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This test verifies the line pressure is within specifications.
- Connect the Transmission Fluid Pressure Gauge to the line pressure tap.
- Start the engine and check the line pressures. Refer to Fig 2 to determine if the line pressure is within specification.
- If the line pressure is not within specification, carry out On-Board Diagnostics and Go To PINPOINT TEST E , air pressure check, and clean, inspect and install a new main control system or pump as required.