2008 Chevrolet Optra LS, AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

    Fig 1: View Of Fuel Tank Filler Tube
    GM1241916Courtesy of GENERAL MOTORS CORP.
  1. Raise the fuel tank into position.
  2. NOTE: Refer to Fastener Notice .
  3. Install the fuel tank mounting bolts.

    Tighten:Β  Tighten the fuel tank retaining bolts to 20 N.m (15 lb ft)Β  .

  4. Connect the fuel outlet line.
  5. Connect the wiring harness clips and the fuel line clips as needed.
  6. Connect the fuel pump electrical connector.
  7. Connect the fuel vapor line.
  8. Connect the fuel tank filler tube and fuel tank vent tube.
  9. Install the fuel tank filler tube clamp at the fuel tank.
  10. Fig 2: View Of Fuel Tank
    GM1241914Courtesy of GENERAL MOTORS CORP.
  11. Install the parking brake cable retainer clamps and the support.

    Tighten:Β  Tighten the parking brake cable retainer clamps to 10 N.m (89 lb in)Β  .

  12. Connect the negative battery cable.
  13. Fill the fuel tank.
  14. Perform a leak check of the fuel tank and the fuel line connections.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.