2007 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: Identifying Generator/Starter Wiring
    GM1560044Courtesy of GENERAL MOTORS CORP.
  1. Insert the generator positive cable into the battery cables harness conduit.
  2. Install the positive cable clip (3) to the engine wiring harness bracket.
    3. NOTE: Refer to Fastener Notice .
  3. Connect the generator positive lead (2) to the generator and install the generator output BAT terminal nut (1).

    Tighten:  Tighten the nut to 20 N.m (15 lb ft).

  4. Position the protective boot onto the generator output BAT terminal.
    5. Fig 2: Locating Nuts Securing The Battery Cables To Underhood Fuse Block
    GM1560045Courtesy of GENERAL MOTORS CORP.
  5. Install the nut (1) securing the generator positive cable inner terminal to the underhood fuse block.

    Tighten:  Tighten the nut to 10 N.m (89 lb in).

  6. Install the left front wheelhouse liner. Refer to Wheelhouse Panel Replacement (Front) or Wheelhouse Panel Replacement (Rear) .
  7. Install the underhood fuse block cover to the underhood fuse block, engaging the locking tabs.
    8. Fig 3: Identifying Battery Cable Harness Clips
    GM1560042Courtesy of GENERAL MOTORS CORP.
  8. Install the battery cable harness clips (1, 2) to the battery tray.
  9. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
Factory Service Tools

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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.