Speed Control: Removal & Installation Dodge Pickup R2500

REMOVAL

The speed control servo assembly is attached to the bottom of the battery tray (Scheme 8)

Scheme 8

Scheme 9

1. Disconnect negative battery cable at battery (both cables at both batteries if diesel).
2. To gain access to servo, remove plastic wheel-house splash shield over left-front wheel.
3. Disconnect vacuum line at servo (Scheme 8)
4. Disconnect electrical connector at servo (Scheme 8)
5. Remove 3 servo mounting screws (Scheme 8) Depending on engine application, different sets of mounting lugs (Scheme 8) are used to support servo to battery tray. While removing, note proper lugs.
6. Disconnect servo cable at throttle body. Refer to Servo Cable Removal/Installation.
7. Remove 2 mounting nuts holding servo cable sleeve to bracket (Scheme 9)
8. Pull speed control cable sleeve and servo away from servo mounting bracket to expose cable retaining clip (Scheme 9) and remove clip. Note: The servo mounting bracket displayed in (Scheme 9) is a typical bracket and may/may not be applicable to this model vehicle.
9. Remove servo from mounting bracket. While removing, note orientation of servo to bracket.

INSTALLATION

1. Position servo to mounting bracket (Scheme 9)
2. Align hole in cable connector with hole in servo pin. Install cable-to-servo retaining clip (Scheme 9)
3. Insert servo mounting studs through holes in servo mounting bracket.
4. Install 2 servo-to-mounting bracket nuts and tighten. Refer to torque specifications.
5. Position servo assembly to correct mounting lugs on battery tray (Scheme 8) and install 3 screws. Tighten 3 screws. Refer to torque specifications.
6. Connect vacuum line at servo.
7. Connect electrical connector at servo.
8. Connect servo cable to throttle body. Refer to servo Cable Removal/Installation.
9. Install left-front wheel-well liner.
10. Connect negative battery cable to battery (connect both cables if diesel).
11. Before starting engine, operate accelerator pedal to check for any binding.

Depending on engine control computer (JTEC having a 3-plug connector or 5.7L V-8 NGC having a 4-plug connector), 2 types of switches are used. Both types of switches are internally and externally different. The switches used with the NGC system have attached pigtail leads (Scheme 10) The switch used with the JTEC system does not have an attached pigtail lead.

Scheme 10

Scheme 11

1. Remove switch mounting screw (Scheme 11) or (Scheme 10)
2. Pull switch from steering wheel.
3. Unplug electrical connector from switch (Scheme 11), or, switch pigtail wire harness from steering wheel wire harness (Scheme 10) and remove switch.

1. Plug electrical connector into switch (Scheme 11), or connect pigtail wire harness to steering wheel wire harness (Scheme 10) Be sure wires are not pinched.
2. Position switch to steering wheel.
3. Install switch mounting screw and tighten. Refer to torque specifications.

The vacuum reservoir is located in the engine compartment under the fresh air cowl grill panel (Scheme 12)

Scheme 12

Scheme 13

1. Remove wiper blades and arms. Refer to Wiper Arm Removal/Installation in the Wipers/Washers section.
2. Remove fresh air cowl grill. Refer to Cowl Grill Removal/Installation.
3. Disconnect vacuum line at reservoir (Scheme 13)
4. Remove 2 reservoir mounting nuts (Scheme 13)
5. Remove reservoir from cowl.

1. Position reservoir onto 2 weld studs (Scheme 13)
2. Install 2 mounting nuts and tighten. Refer to torque specifications.
3. Connect vacuum line to reservoir fitting.
4. Install cowl grill. Refer to Cowl Grill Removal/Installation.
5. Install wiper arms/blades. Refer to Wiper Arm Removal/Installation.