Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the battery cable to the conduit.
  2. Fig 1: View Of Positive Cable Lead, Nut & Cable Clip
    GM899617Courtesy of GENERAL MOTORS CORP.
  3. Install the cable clip (3) to the bracket.
  4. Install the positive cable lead (1).
  5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Install the positive cable lead nut (2) to the starter.

    Tighten:Β  Tighten the nut to 9 N.m (80 lb in).

  7. Fig 2: View Of Battery Cable Channel & Bolt
    GM899616Courtesy of GENERAL MOTORS CORP.
  8. Install the battery cable to the channel.
  9. Install the battery cable channel.
  10. Install the battery cable channel bolt.

    Tighten:Β  Tighten the battery cable channel bolt to 12 N.m (106 lb in).

  11. Fig 3: Engine Protection Shield Removed
    GM898127Courtesy of GENERAL MOTORS CORP.
  12. Install the engine protection shield. Refer to Engine Protection Shield Replacement in Frame and Underbody.
  13. Fig 4: View Of Generator Cable Boot, Head, Nut & Bolt
    GM899614Courtesy of GENERAL MOTORS CORP.
  14. Install the generator cable lead (3).
  15. Install the generator cable nut (2).

    Tighten:Β  Tighten the nut to 9 N.m (80 lb in).

  16. Position the generator cable boot (1).
  17. Close the clips on the retaining brackets.
  18. Fig 5: Identifying Battery Cable Components
    GM899613Courtesy of GENERAL MOTORS CORP.
  19. Tighten the positive terminal bolt (1) that secures the harness to the junction block.

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

  20. Connect the positive battery cable (4).

    Tighten:Β  Tighten the positive cable to 15 N.m (11 lb ft).

  21. Connect the negative battery cable (5). Refer to Battery Negative Cable Disconnect/Connect ProcedureΒ .
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:

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