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Home >> Chevrolet >> 2005 >> Chevy Express G3500, Van Passenger, LQ4/KL8 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 6.0L (CNG) - Introduction >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: LPL Solenoid Housing
    GM926102Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Compressed Natural Gas (CNG) O-Ring Caution in Cautions and Notices.
  1. Install the fuel injector (7) into the fuel rail (5) using a new O-ring (6). Lubricate the new O-ring with petroleum jelly.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the fuel injector retainer bolt and clip (10).

    Tighten:  Tighten the retainer bolt to 7 N.m (61 lb in).

  3. Lubricate the new injector tip O-ring (8) with clean engine oil.
  4. Repeat steps 1, 2 and 3 for the remaining fuel injectors.
  5. Install the fuel rail assembly. Refer to Fuel Rail Assembly Replacement (KL6)  or Fuel Rail Assembly Replacement (KL8) .
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