LEMON Manuals: Even more car manuals for everyone
Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 5.3L) >> Repair Instructions - Off Vehicle >> Fuel Rail and Injectors Removal

Fuel Rail and Injectors Removal

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of EVAP Purge Solenoid Valve
    GM1411900Courtesy of GENERAL MOTORS CORP.
    WARNING: Refer to Fuel Rail Stop Bracket Installation Warning .
    CAUTION:
    • Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
    • Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.
    NOTE: The intake manifold, throttle body, fuel injection rail and fuel injectors may be removed as an assembly. If not servicing the individual components, remove the intake manifold as a complete assembly.
  1. Remove the positive crankcase ventilation (PCV) dirty air hose (716).
  2. Remove the evaporative emission (EVAP) canister purge solenoid valve (730), bracket (741), and tube (729).
    3. Fig 2: View Of Fuel Rail Ground Strap
    GM1411903Courtesy of GENERAL MOTORS CORP.
  3. Note the location of the fuel rail ground strap (557).
    4. Fig 3: Fuel Rail Bolts & Ground Strap
    GM1807822Courtesy of GENERAL MOTORS CORP.
  4. Remove the fuel rail bolts (511) and ground strap (557).
    5. NOTE:
    • Do not separate the fuel injectors from the fuel rail, unless component service is required.
    • Use cleanliness and care when handling the fuel system components.
    • Do not allow dirt or debris to enter the fuel injectors or fuel rail components. Cap ends, as necessary.
  5. Remove the fuel rail (510) with injectors. Lift evenly on both sides of the fuel rail until all injectors have left their bores.
    6. Fig 4: View Of Fuel Rail With Injectors
    GM1411907Courtesy of GENERAL MOTORS CORP.
  6. Remove the fuel injector retainers (521) and fuel injectors (533), as required.
  7. Remove the O-rings (532, 534) from the injectors, as required.
scientia non olet · About LEMON Manuals