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Home >> Chevrolet >> 2005 >> Chevy Express G1500, Van Cargo, 4.3 X >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.3L - Introduction >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: Each injector is calibrated for a specific flow rate. Order the correct injector for the application being serviced when replacing the fuel injectors.
    Fig 1: Fuel Injector Assembly
    GM331936Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the new injector O-ring seals with clean engine oil.
  2. Install the O-rings on the injector assembly (2).
    3. Fig 2: Exploded View Of Fuel Injector Assembly
    GM585444Courtesy of GENERAL MOTORS CORP.
  3. Install the fuel injector assembly (12) into the injector socket.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the injector assembly retainer (11) and the injector retainer lock nuts (10).

    Tighten:  Tighten the lock nuts to 3.0 N.m (27 lb in).

  5. Install the fuel meter body assembly. Refer to Fuel Meter Body Assembly Replacement .
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