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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.5L (L65) (Introduction) >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: When installing an injection nozzle, use the J 29873  . See Special Tools . Install the nozzle using the 30 mm hex portion. Failure to do so will result in damage to the injection nozzle.
    Fig 1: Fuel Injection Nozzle
    GM263638Courtesy of GENERAL MOTORS CORP.
  1. Install the injection nozzle using J 29873  (apply anti-seize compound to threads of nozzle that contact the cylinder). See Special Tools .
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Tighten the nozzle.

    Tighten:  Tighten the nozzle to 70 N.m (52 lb ft).

    3. Fig 2: Fuel Return Hoses & Nozzle
    GM27624Courtesy of GENERAL MOTORS CORP.
  3. Tighten the fuel injection line.

    Tighten:  Tighten the nut to 25 N.m (18 lb ft).

  4. Install the fuel return hoses (1) on the nozzle (2).
  5. Install the fuel line clip.
  6. Install the negative battery cables.
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