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Home >> GMC >> 2001 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls - 4.3L - Repair Instructions) >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
IMPORTANT:

When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.

    Fig 1: Fuel Injector Assembly
    GM331936Courtesy of GENERAL MOTORS COMPANY
  1. Lubricate the new injector O-ring seals with clean engine oil (2).
  2. Install the O-rings on the injector assembly (2).
    3. Fig 2: Exploded View Of Fuel Injector Assembly
    GM585444Courtesy of GENERAL MOTORS COMPANY
  3. Install the fuel injector assembly (12) into the fuel meter body injector socket.
  4. Refer to FASTENER NOTICE in Cautions and Notices.

    Install the injector assembly retainer (11) and the injector retainer lock nuts (10).

    Tighten 

    Tighten the injector retainer lock nuts to 3 N.m (27 lb in).

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