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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 434 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 5.3L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSFUEL HOSE/PIPES ASSEMBLY REPLACEMENTINSTALLATION PROCEDURE
2008 Pontiac Grand Prix Base

Installation Procedure

2008 Pontiac Grand Prix BaseSECTION Installation Procedure
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Feed, EVAP & Fuel Tank Lines
    GM1554561Courtesy of GENERAL MOTORS CORP.
  1. Position the fuel feed line.
  2. Connect the fuel feed (3) and EVAP (4) lines to the fuel tank lines (1, 2). Refer to Plastic Collar Quick Connect Fitting Service .
    3. Fig 2: View Of Rear Fuel/Brake Pipe Retainer
    GM1555277Courtesy of GENERAL MOTORS CORP.
  3. Install the fuel feed line to the retainer.
  4. Close the fuel/brake line retainer (1).
    5. Fig 3: View Of Fuel/Brake Pipe Retainer Bolts
    GM1555275Courtesy of GENERAL MOTORS CORP.
  5. Install the fuel feed line to the retainer.
    6. NOTE: Refer to Fastener Notice .
  6. Install the fuel/brake line retainer bolts.

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

    7. Fig 4: View Of Fuel/Brake Line Push In Retainer
    GM1555273Courtesy of GENERAL MOTORS CORP.
  7. Install the fuel feed line to the retainer.
  8. Install the fuel/brake line push in retainer to the underbody.
    9. Fig 5: View Of Fuel/Brake Line Retainer Bolt
    GM1555271Courtesy of GENERAL MOTORS CORP.
  9. Install the fuel feed line to the retainer.
  10. Install the fuel/brake line retainer bolt.

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

  11. Lower the vehicle.
    12. Fig 6: View Of Fuel/Brake Pipe Retainers
    GM1555269Courtesy of GENERAL MOTORS CORP.
  12. Install the fuel feed line to the fuel/brake pipe retainers (1).
  13. Close the fuel/brake pipe retainers (1).
    14. Fig 7: View Of Fuel Feed Line & Evaporative Emission (EVAP) Line
    GM1551868Courtesy of GENERAL MOTORS CORP.
  14. Connect the fuel feed line (1) to the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  15. Position and install the brake master cylinder. Refer to Master Cylinder Replacement .
  16. Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  17. Install the fuel fill cap.
  18. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (LS4) .
  19. Perform the following steps to inspect for leaks:
    1. Turn ON the ignition for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition.
    4. Inspect the system for leaks.
  20. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield 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.