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HOMESERVICE MANUALSGMC2009CANYON 4D PICKUP, 2.9 9REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 6 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 5.3L - INTRODUCTION, SERVICE & REPAIR)REPAIR INSTRUCTIONSFUEL INJECTION FUEL RAIL ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
2009 GMC Canyon 4D Pickup, 2.9 9

Removal Procedure

2009 GMC Canyon 4D Pickup, 2.9 9SECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
NOTE: An 8-digit identification number is located on the fuel rail. Refer to this model identification number if servicing or part replacement is required.
    Fig 1: MAP Sensor
    GM1897166Courtesy of GENERAL MOTORS CORP.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH-48027) Fuel Pressure Relief (Without CH-48027) .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  3. Disconnect the engine wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor.
    4. Fig 2: PCV) Foul Air Hose
    GM1897777Courtesy of GENERAL MOTORS CORP.
  4. Remove the positive crankcase ventilation (PCV) foul air hose (1).
    5. Fig 3: Wiring Harness Clip At Ignition Coil Bracket Stud
    GM1897773Courtesy of GENERAL MOTORS CORP.
  5. Remove the engine wiring harness clip (1) from the ignition coil bracket stud (2).
    6. Fig 4: Engine Wiring Harness Clip & Ignition Coil Bracket Stud
    GM1897774Courtesy of GENERAL MOTORS CORP.
  6. Remove the engine wiring harness clip (1) from the ignition coil bracket stud (2).
    7. Fig 5: Throttle Body & Coil Electrical Connectors
    GM1897252Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the engine wiring harness electrical connector (2) from the throttle body.
  8. Disconnect the engine wiring harness electrical connectors (1) from the fuel injectors.
  9. Disconnect the engine wiring harness electrical connector (3) from the ignition coil harness.
    10. Fig 6: Engine Wiring Harness Electrical Connector & Generator
    GM1897776Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the engine wiring harness electrical connector (1) from the generator.
  11. Disconnect the engine wiring harness electrical connector (3) from the evaporative emission (EVAP) canister purge solenoid valve.
  12. Disconnect the engine wiring harness electrical connector (4) from the ignition coil harness.
    13. Fig 7: Engine Wiring Harness Electrical Connectors, Harness Bracket & Bracket Nut
    GM1897775Courtesy of GENERAL MOTORS CORP.
  13. Disconnect the engine wiring harness electrical connectors (3) from the fuel injectors.
  14. Remove the engine wiring harness bracket nut (1).
  15. Remove the engine wiring harness bracket (2) from the stud and reposition the harness as needed.
  16. Remove the EVAP canister purge solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement .
    17. Fig 8: Identifying Fuel Hose/Pipes - Chassis
    GM1897742Courtesy of GENERAL MOTORS CORP.
  17. Disconnect the chassis fuel feed line quick connect fitting (2) from the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
    18. Fig 9: Fuel Rail & Bolts
    GM1898207Courtesy of GENERAL MOTORS CORP.
  18. Remove the fuel rail bolts (1).
  19. Loosen but do not remove the fuel rail crossover pipe retainer clip screws.
    20. 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.
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.