Econoline E350 1 Ton V8-5.4L Prop SOHC VIN Z (1998)
Table of Contents
OVERVIEW
This program involves removing the 4W1Z-14A411-BC Fused Jumper Harness (FJH) that was previously installed during service on the affected
vehicles and installing a Universal Fused Jumper Harness (UFJH), or a new Speed Control Deactivation Switch (SCDS).
NOTE:
Do not perform an Interim Repair (SCDS Disconnect) on any of the affected vehicles in this program. Call the Special Service Support Center if you
do not have the necessary parts to complete the final repairs.
SPEED CONTROL DEACTIVATION SWITCH (SCDS) LOCATION
In most late model year vehicles involved in this recall, the SCDS is located on the master cylinder. In early model year vehicles (1992-1998), the SCDS
may be located on the master cylinder, but is often found on a brake line distribution block or on the brake proportioning valve. If in doubt, just follow
the metal brake lines from the master cylinder until the switch is found.
^
On early model year E-Series vehicles, the SCDS is located on the left frame rail.
^
On E-450 models only, remove the 3 screws and position the coolant degas bottle forward to allow access to the SCDS and servo.
^
On F-53 vehicles, if the SCDS is not located on the master cylinder, it may be located in a brake line junction block approximately 457 mm (18 in)
below the master cylinder. It may be necessary to reposition wiring harnesses and/or remove add-on equipment in order to locate the switch.
SPEED CONTROL DEACTIVATION SWITCH (SCDS) INSPECTION
NOTE:
On E-1 50/250/350 it may be necessary to lift the vehicle to disconnect the SCDS.
Remove the electrical connector from the speed control deactivation switch and check the fused jumper harness connector end for the presence of brake
fluid. Cut the tie straps from the fused jumper harness 4W1 Z-1 4A41 1-BC and remove the fused jumper harness.
^
If there is no evidence of brake fluid on the connector, install a Universal Fused Jumper Harness.
^
If there is the presence of brake fluid on the connector, replace the Speed Control Deactivation Switch.
FUSED JUMPER HARNESS (FJH) IDENTIFICATION
