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Fuel Pump Installation (LLT or LCS): Installation

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Alignment Gage
    GM2226321Courtesy of GENERAL MOTORS CORP.
    NOTE: The camshaft must be in the base circle position before the high pressure fuel pump is installed.
  1. Use the EN 48896:  alignment gage (2) to ensure that the camshaft lobe is in the base circle position. At base circle position, the tool will be flush with the head (1).
    2. Fig 2: View of Fuel Pump Bolts and Cylinder Head
    GM1977940Courtesy of GENERAL MOTORS CORP.
  2. Lubricate the high pressure fuel pump cylinder head bore with 5W30 engine oil.
    3. NOTE: Ensure that the high pressure fuel pump roller lifter is oriented properly, the camshaft is at base circle and the number 1 piston is at top dead center (TDC) on the exhaust stroke. The distance from the mounting flange surface to the camshaft at base circle should be 52 mm (2.05 in).
  3. Lubricate the high pressure fuel pump roller lifter with 5W30 engine oil and install into the cylinder head bore.
  4. Install a NEW high pressure fuel pressure fuel pump gasket (4).
  5. Install a NEW high pressure fuel pump O-ring (5).
    6. NOTE: Ensure the plastic bolt retainers are installed in the high pressure fuel pump mounting holes before installing.
  6. Install the valve lifter follower (3).
  7. Install the high pressure fuel pump (2).
    8. CAUTION: Refer to Fastener Caution .
    CAUTION: Alternately hand-tighten the fuel pump bolts one turn at a time until the pump is fully seated. Trying to draw down the pump without even side-to-side tightening may result in pump plunger damage.
  8. Start and hand-tighten the high pressure fuel pump bolts (1) evenly to 15 N.m (11 lb ft).
    9. Fig 3: View of Fuel Line and Cylinder Head
    GM1977939Courtesy of GENERAL MOTORS CORP.
  9. Install and hand-tighten both ends of the NEW high pressure fuel line and tighten the high pressure fuel line fitting nuts to 30 N.m (22 lb ft).
    10. Fig 4: Identifying Fuel Rail Crossover Pipe
    GM1977925Courtesy of GENERAL MOTORS CORP.
  10. Install the LH to RH fuel rail crossover pipe and tighten the fuel rail crossover pipe fittings to 30 N.m (22 lb ft).
    11. Fig 5: Identifying Fuel Feed Pipe & Bracket
    GM2091466Courtesy of GENERAL MOTORS CORP.
  11. Install the fuel feed pipe.
  12. Install the fuel feed pipe bolts and tighten to 10 N.m (89 lb in).
  13. Install the fuel rail wiring connectors to the fuel feed pipe bracket.
    14. Fig 6: View of Fuel Rail Noise Shield
    GM1977923Courtesy of GENERAL MOTORS CORP.
  14. Install the fuel rail noise shield.
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