GM Service Manual Online
For 1990-2009 cars only
  1. Remove the fuel injection lines from the fuel injectors.
  2. Remove the fuel lines from the fuel filter to the fuel supply pump.
  3. Remove the fuel injector return lines from the fuel injectors.
  4. Remove the coolant pipe and bracket.
  5. Remove the fuel line from the fuel supply pump to the fuel common rail.
  6. Remove the fuel common rail.
  7. Remove the intake manifold bolts.
  8. Remove the intake manifold with the gasket.