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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 181 (ENGINE CONTROL SYSTEM - 3.5L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL TANK REPLACEMENTINSTALLATION PROCEDURE
2006 Buick Terraza CXL, 3.5 L, AWD

Installation Procedure

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Installation Procedure
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Tank Lines
    GM1575957Courtesy of GENERAL MOTORS CORP.
  1. Install the insulator pads to the fuel tank.
  2. Install the EVAP canister. Refer to Evaporative Emission (EVAP) Canister Replacement .
    NOTE:
    • Do not attempt to straighten kinked nylon pipes. Replace any kinked nylon pipes in order to prevent damage to the vehicle.
    • Do not attempt to repair sections of nylon pipes. Replace damaged nylon pipes.
    • Replace the vapor pipes with original equipment or parts that meet GM specifications.
    • Replace the vapor hoses with original equipment or parts meeting GM specifications. Use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163M on the hose.
  3. Install and connect the fuel feed line (3), and the EVAP lines (1, 2). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
    4. Fig 2: View Of Top Of Fuel Tank
    GM1575955Courtesy of GENERAL MOTORS CORP.
  4. Install and connect the fuel pressure sensor and fuel sender jumper harness electrical connectors.
  5. Install the fuel tank onto a suitable jack.
  6. Partially raise the fuel tank until the electrical connection can be made.
    7. Fig 3: View Of Fuel Sender Jumper Harness Electrical Connector
    GM1575953Courtesy of GENERAL MOTORS CORP.
  7. Connect the fuel sender jumper harness electrical connector.
    8. Fig 4: View Of Fuel Tank & Straps
    GM1554562Courtesy of GENERAL MOTORS CORP.
  8. Completely raise the tank.
    NOTE: Refer to Fastener Notice .
  9. Install the fuel tank strap bolts (3).

    Tighten:  Tighten the bolts to 48 N.m (35 lb ft).

  10. Remove the jack from the fuel tank.
    11. Fig 5: View Of Fuel Tank Shield
    GM1554563Courtesy of GENERAL MOTORS CORP.
  11. Position the fuel tank shield (2) to the fuel tank.
  12. Install the shield retainers (3).
    13. Fig 6: View Of Fuel Feed, EVAP and Fuel Tank Lines
    GM1554561Courtesy of GENERAL MOTORS CORP.
  13. Install the rubber exhaust pipe hangers.
  14. Remove the support from the exhaust system.
  15. Connect the fuel feed (3), and EVAP (4) lines to the fuel tank lines (1, 2). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
    16. Fig 7: Connecting The EVAP Vent Solenoid Hose On The Tank To The EVAP Vent Valve Solenoid Hose
    GM1618911Courtesy of GENERAL MOTORS CORP.
  16. Connect the EVAP vent solenoid hose on the tank to the EVAP vent valve solenoid hose.
    17. Fig 8: Fuel Tank Clamp, Fuel Tank Hose And Fuel Tank
    GM1554559Courtesy of GENERAL MOTORS CORP.
  17. Connect the EVAP vent pipe quick connect fitting to the fill pipe EVAP vent pipe quick connect fitting. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  18. Install the fuel tank fill hose (2) onto the fuel tank (3). Install the hose over the orientation feature (4) on the tank, until fully seated to the tank.
  19. Tighten the fuel fill hose clamp (1) at the fuel tank.

    Tighten:  Tighten the clamp to 2.5 N.m (22 lb in).

  20. Lower the vehicle.
  21. Add fuel and install the fuel fill cap.
  22. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs LZE/LZ4/LZ9) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
  23. Inspect the fuel system for leaks by performing the following steps:
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect for fuel leaks.
  24. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
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.