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Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Repair Instructions (2 Of 2)) >> Repair Instructions >> High Pressure Diesel Fuel Injector Replacement >> Cleaning and Inspection Procedure - Conditional

Cleaning and Inspection Procedure - Conditional

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

The following cleaning and inspection and/or overhaul steps are ONLY to be performed as determined necessary based on the condition of the part being removed with the intention of reinstallation. The labor time to perform any of these steps is not included in the base labor time and if required would need to be documented and submitted as Other Labor Hours for warranty claim reimbursement. A description of the repairs performed must be documented in the technician correction comments.

  1. GM5145897Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    The fuel injector must be cleaned with the proper cleaning equipment. DO NOT use abrasive cleaning methods, such as a metallic brush, to remove deposits. Cleaning an injector with improper tools will damage the fuel injector.

    Using a soft bristle non-metallic brush and top engine cleaner, remove any deposits from the high pressure diesel fuel injector nozzle tip (1) and the copper washer sealing area before installation.

  2. Inspect the high pressure diesel fuel injector nozzle tip (1) for cracks, dents, or other damage.
  3. Inspect the high pressure diesel fuel injector nozzle tip (1) for any signs of discoloration.