Installation Procedure

2003 GMC Sonoma 2D Pickup, 2.2 H, AutomaticSECTION Installation Procedure
  1. Install the positive battery cable to the vehicle.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  2. Install the positive battery cable nut to the engine.

    Tighten 

    Tighten the positive battery cable nut to 6 N.m (80 lb in).

  3. Install the nut retaining the positive battery cable to the starter.

    Tighten 

    Tighten the positive battery cable nut to 9 N.m (80 lb in).

  4. Lower the vehicle.
    Fig 1: Installing Positive Battery Cable Nut To Engine
    G01978297Courtesy of GENERAL MOTORS CORP.
  5. Install the nut retaining the positive battery cable to the generator.

    Tighten 

    Tighten the positive battery cable nut to 17 N.m (13 lb ft).

    Fig 2: Installing Nut Retaining Positive Battery Cable To Generator
    G01978298Courtesy of GENERAL MOTORS CORP.
  6. Install the nut retaining the positive battery cable to the underhood fuse block.

    Tighten 

    Tighten the positive battery cable nut to 10 N.m (89 lb in).

  7. Connect the positive battery cable to the battery.

    Tighten 

    Tighten the positive terminal bolt to 14 N.m (11 lb ft).

  8. Connect the negative battery cable to the battery.
    Fig 3: Installing Nut Retaining Positive Battery Cable To Underhood Fuse Block
    G01978299Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.