Pressure Tap Location

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Pressure Tap Location

Courtesy of FORD MOTOR CO.

Item	Description
1	Clutch C1 drive
2	Clutch C2 drive
3	Clutch C3 drive
4	Lube circuit
5	Clutch B2

NOTE: 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 (WOT) in any transaxle range for more than 5 seconds.

This test verifies that the pressure is within specification.

Connect the Transmission Fluid Pressure Gauge to the appropriate pressure tap.

Start the engine and check the pressures, see the pressure charts to determine if the pressures are within specification.

CLUTCH AND BRAKE PRESSURE CHART

Clutch/Band	Range	Pressure
C1 (Drive Clutch)	Drive (1st-4th)	196-1, 372 kPa (28-199 psi)
C2 (Drive Clutch)	Drive (4th-6th)	196-1, 372 kPa (28-199 psi)
C3 (Drive Clutch)	Drive (3rd-5th)	196-1, 372 kPa (28-199 psi)
C3 (Drive Clutch)	Reverse	392-1, 863 kPa (57-270 psi)
B1 (Brake Clutch)	Drive (2nd and 6th)	196-1, 372 kPa (28-199 psi)
B2 (Brake Band)	Low manual (1st)	588-1, 372 kPa (85-199 psi)
B2 (Brake Band)	Reverse	392-1, 863 kPa (57-270 psi)

PRESSURE DIAGNOSTIC CHART

Test Results	Possible Source
Values of both DRIVE and REVERSE ranges are lower than the standards	Line Pressure Control (LPC) Primary regulator valve failure Transmission oil pump failure Leak from hydraulic circuit of DRIVE or REVERSE range
Only the value of DRIVE range is lower than the standards	DRIVE range hydraulic circuit failure C1 clutch failure
Only the value of REVERSE range is lower than the standards	REVERSE 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 DTCs. Test drive vehicle, code could be intermittent. If DTC returns, install a new valve body.