Timing Chain Replacement: Removal

2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Removal
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect negative battery cable.
  2. Disconnect intake air temperature (IAT) sensor connector.
  3. Loosen clamp at air cleaner assembly.
  4. Remove push pin attachment from outlet resonator/duct assembly to support bracket.
  5. Loosen clamp at throttle body assembly.
  6. Disconnect PVC fresh air vent hose at cam cover.
  7. Remove outlet resonator/duct assembly.
  8. Remove air cleaner assembly hold-down bolt.
  9. Remove air cleaner assembly.
    Fig 1: Removing Outlet Resonator/Duct Assembly
    G01039380Courtesy of GENERAL MOTORS CORP.
  10. Remove ignition module bolts.
  11. Remove ignition module assembly.
    Fig 2: Removing Ignition Module Assembly
    G01039381Courtesy of GENERAL MOTORS CORP.
  12. Disconnect de-gas hose at clamp at cylinder head and unclip from fuel rail. Position away from cam cover assembly.
  13. Disconnect ground strap at rear of cam cover assembly.
    Fig 3: Disconnecting Ground Strap At Rear Of Cam Cover Assembly
    G01039382Courtesy of GENERAL MOTORS CORP.
  14. Relieve fuel system pressure. Refer to FUEL SYSTEM PRESSURE RELEASE .
  15. Disconnect Gauge Bar Set SA9127E after pressure has been relieved.
    Fig 4: Disconnecting Gauge Bar Set
    G01039383Courtesy of GENERAL MOTORS CORP.
  16. Disconnect fuel rail bracket and bolt at rear of cam cover.
    Fig 5: Disconnecting Fuel Rail Bracket
    G01039384Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.