Glow Plug: Removal

2004 Oldsmobile Bravada AWDSECTION Removal
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: On the Federal Emissions systems there is a buss bar connecting the glow plugs on each bank of the engine. See Fig 1.
  1. Disconnect the negative battery cables. Remove the push-in retainers from the appropriate wheelhouse panel. Remove the top clips retaining the harness to the top of the wheelhouse panel. Remove the wheelhouse panel from the wheelhouse.
  2. Remove the air cleaner outlet duct. See AIR CLEANER OUTLET DUCT  under AIR INDUCTION SYSTEMS. Remove the glow plug nuts from the desired glow plug(s). Remove the harness from the desired glow plug(s). Remove the harness from the desired glow plug(s).
    Fig 1: Identifying Glow Plug Connectors
    G00232253Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.