Pressure Test
WARNING: This page is about a different car, the 2006 Mercury Montego and 2006 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
Pressure Tap Location
CAUTION:
If the pressure is low at stall, do not continue with the test or further transaxle damage will occur. Do not maintain wide open throttle in any transaxle range for more than 5 seconds.
NOTE:
In order to connect the pressure gauge to the transaxle, you will need to use an O-ring to pipe adapter (5/16-24 to 1/8 inch pipe thread adapter).
This test verifies that the pressure is within specification.
- Connect a pressure gauge to the appropriate pressure tap.
- Start the engine and check the pressures, see the pressure tables to determine if the pressures are within specification.
Clutch and Brake Pressure Table
CLUTCH AND BRAKE PRESSURE TABLEClutch Range Pressure C1 Drive (1st-4th) 196-1,372 kPa (28-199 psi) C2 Drive (4th-6th) 196-1,372 kPa (28-199 psi) C3 Drive (3rd, 5th) 196-1,372 kPa (28-199 psi) C3 Reverse 392-1,863 kPa (57-270 psi) B2 Low manual (1st) 588-1,372 kPa (85-199 psi) B2 Reverse 392-1863 kPa (57-270 psi) Pressure Diagnostic Table
PRESSURE DIAGNOSTIC TABLETest Results Possible Source D and R ranges are lower than the standards - Pressure control solenoid A (PCA)
- Primary regulator valve failure
- Oil pump failure
- Leak from hydraulic circuit of D or R range
Only the value of D range is lower than the standards - D range hydraulic circuit failure
- C1 clutch failure
Only the value of R range is lower than the standards - R range hydraulic circuit failure
- C3 clutch failure
- B2 brake failure
- If the pressure is not within specification, install a new main control valve body.
- If the pressures are OK, clear all DTC. Test drive vehicle, code could be intermittent. If DTC code returns, install a new valve body.