GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Generic 🢒 1999 🢒 Unit Repair 🢒 Engine 🢒 Engine Controls - 6.5L 🢒 Glow Plug Relay Replacement

Glow Plug Relay Replacement California

Removal Procedure
  1. Remove the negative battery cables.
  2. Remove the upper intake manifold cover by loosening the mounting bolts.

    3. Object Number: 365417 Size: SH
  3. Release all three wiring harness connectors at the glow plug relay.
  4. Remove the glow plug battery feed nut and wire.

    5. Object Number: 365439 Size: SH
  5. Remove the relay mounting bolt.
  6. Remove the glow plug relay.

Installation Procedure

    Object Number: 365439 Size: SH
  1. Install the glow plug relay on the mounting bracket.
  2. Install the glow plug relay mounting bolt.

    3. Tighten
    Tighten the mounting bolt to 22 N·m (16 lb ft).


    Object Number: 365417 Size: SH
  3. Install all three wiring harness connectors to the relay.
  4. Install the glow plug battery feed nut and wire.

    5. Tighten
    Tighten the nut to 4.5 N·m (40 lb in).

  5. Install the upper intake manifold cover.

    6. Tighten
    Tighten the upper intake manifold cover bolts to 11 N·m (100 lb in).

  6. Install the negative battery cables.