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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 377 (ENGINE CONTROLS - 4.8L, 5.3L, & 6.0L (INTRODUCTION))REPAIR INSTRUCTIONSFUEL INJECTOR REPLACEMENTINSTALLATION PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: When ordering new fuel injectors, you must order the correct injector for the application being serviced.

The fuel injector (1) is stamped with a identification part number (2). A four-digit build date code (3) indicates the month (4), day (5), year (6), and shift (7) that built the injector.

Fig 1: Locating Fuel Injector ID Number
GM351196Courtesy of GENERAL MOTORS CORP.
  1. Lubricate the NEW injector O-ring seals (2, 4) with clean engine oil.
  2. Install the NEW injector O-ring seals onto the fuel injector.
  3. Install a NEW retainer clip (1) onto the fuel injector.
    4. Fig 2: View Of Fuel Injector, Clip & O-Rings
    GM351185Courtesy of GENERAL MOTORS CORP.
  4. Push the fuel injector (17) into the fuel rail injector socket with the electrical connector facing outward. The retainer clip (19) locks on to a flange on the fuel rail injector socket.
    5. Fig 3: Exploded View Of Fuel Rails & Injector Components
    GM350543Courtesy of GENERAL MOTORS CORP.
  5. Install the fuel rail. Refer to Fuel Rail Assembly Replacement (4.8L, 5.3L, and 6.0L Engines)  or Fuel Rail Assembly Replacement (5.3L (L59) Engine) .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.