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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Repair Instructions) >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure

Installation Procedure

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  1. Clean and inspect the fuel injector prior to reinstalling it.
  2. GM5034546Courtesy of GENERAL MOTORS COMPANY

    Combustion Fuel Injector Seal (1) - Install NEW

  3. GM5034539Courtesy of GENERAL MOTORS COMPANY

    Slide the fuel injector hold down clamp (3) into the grooves on the fuel injector (5) and install them together into the valve rocker arm cover ensuring that the fuel injector locating pin (4) engages the fuel injector hold down clamp (3).

  4. Fuel Injector Washer (2) - Install
  5. CAUTION:

    Refer to Fastener Caution .

  6. Fuel Injector Bracket Bolt (1) - Install and tighten 32 N.m (24 lb ft)
  7. GM5034532Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Fuel Injector (2) - Connect

  8. Fuel Injection Fuel Return Pipe - Install - Fuel Injection Fuel Return Pipe Replacement
  9. NOTE:

    High pressure fuel feed pipes are one time use only. ALWAYS install a NEW high pressure fuel feed pipe if the pipe is removed OR the fittings are loosened.

  10. Fuel Injection Fuel Feed Pipe - Fuel Injector to Fuel Rail - Install NEW - Fuel Injection Fuel Feed Pipe Replacement (Fuel Injector to Fuel Rail) , or Fuel Injection Fuel Feed Pipe Replacement (Fuel Pump to Fuel Rail) 
  11. NOTE:

    If applicable, perform the fuel filter life reset after replacing the fuel filter.

  12. Replace the fuel filter. Fuel Filter Replacement 
  13. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (Single Battery) , or Battery Negative Cable Disconnection and Connection (Dual Battery)
  14. Prime the fuel system. Fuel System Priming 
  15. With the engine running, check the fuel system for leaks.
  16. Intake Manifold Cover Insulator - Install [2x] - Intake Manifold Cover Insulator Replacement
  17. Perform the fuel trim reset. Fuel Trim Reset
  18. Perform the high pressure fuel correction reset. High Pressure Fuel Correction Reset
  19. Perform the fuel injector flow rate programming. Fuel Injector Flow Rate Programming