Line Pressure Test
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Part Number | Description |
|---|---|---|
| 1 | 7A010 | Line pressure tap |
| 2 | 7A010 | Transmission fluid drain plug |
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.
NOTE:
Do not mistake the transmission fluid drain plug for the line pressure tap plug or the transmission fluid will have to be refilled.
This test verifies that 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.PRESSURE SPECIFICATIONS
Gear Line Pressure at Idle KPa (psi) Line Pressure at WOT Stall KPa (psi) Minimum Maximum Minimum Maximum P 303 kPa (44 psi) 483 kPa (70 psi) 303 kPa (44 psi) 483 kPa (70 psi) R 621 kPa (90 psi) 793 kPa (115 psi) 1, 655 kPa (240 psi) 2, 137 kPa (310 psi) N 303 kPa (44 psi) 483 kPa (70 psi) 303 kPa (44 psi) 483 kPa (70 psi) D 510 kPa (74 psi) 669 kPa (97 psi) 1, 586 kPa (230 psi) 1, 793 kPa (260 psi) L 483 kPa (70 psi) 689 kPa (100 psi) 1, 586 kPa (230 psi) 1, 793 kPa (260 psi) - If the line pressure is not within specification, see the LINE PRESSURE DIAGNOSIS CHART for line pressure concerns.
- When the pressure tests are completed, install the line pressure tap plug.
- Tighten to 9 Nm (80 lb-in).