Section 03-07B: Glow Plug System
1996 F-250, F-350, F-Super Duty Equipped with 7.3L Diesel Engines Workshop Manual
REMOVAL AND INSTALLATION

Glow Plug Relay

Removal

  1.  CAUTION: Do not use a screwdriver or similar tool to pry off the terminal cover. Battery voltage is present at the terminals.

    Disconnect ground cables at batteries.

  1. Remove glow plug relay plastic terminal cover.

  1. Disconnect battery terminal connector (12-V power wire), glow plug relay connector and harness connector.

  1. Remove mounting screws and lift glow plug relay (12A343) from engine (6007). Inspect the plastic base and relay housing for cracks. Replace, if damaged.

Installation

  1. Follow removal procedures in reverse order.

ItemPart NumberDescription
1Glow Plug Relay Connector (Part of 9A451)
2Battery Terminal Connector (Part of 9A451)
312A343Glow Plug Relay
4Glow Plug Relay Mounting Bolts (Part of 12B533)
5Relay Control Harness
(Part of 9A451)