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Home >> GMC >> 2002 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L >> Repair Instructions >> Glow Plug Relay Replacement (Federal) >> Installation Procedure

Installation Procedure

  1. Install the glow plug relay on the mounting studs.
    Fig 1: Glow Plug Relay (Federal)
    G01599608Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  2. Install the glow plug relay mounting nuts.

    Tighten 

    Tighten the nuts to 42 N.m (31 lb ft).

    Fig 2: Glow Plug Relay Mounting Nuts (Federal)
    G01599609Courtesy of GENERAL MOTORS CORP.
  3. Install the wiring harness connector to the relay.
  4. Install the glow plug wiring harness and nuts.

    Tighten 

    Tighten the nuts to 5 N.m (44 lb in).

  5. Install the negative battery cables.
    Fig 3: Glow Plug Relay Wiring Harness Connector, Glow Plug Wiring Harness & Nuts (Federal)
    G01599610Courtesy of GENERAL MOTORS CORP.
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