Line Pressure Test

WARNING: This page is about a different car, the 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Carry out the Line Pressure Test prior to carrying out the Stall Speed Test . If the line pressure is low at stall, do not carry out the Stall Speed Test or further transmission damage will occur. Do not maintain WOT in any transmission range for more than 5 seconds.

This test verifies the line pressure is within specification.

Connect the Transmission Fluid Pressure Gauge 307-004 (T57L-77820-A) to the line pressure tap.
Start the engine and check the line pressure. Refer to the PRESSURE CHART to determine if the line pressure is within specification.