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Fuel Feed and Fuel Return Pipe Purge 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.
  1. Pump the primer located on top of the fuel filter 30 times or until stiff.
    Fig 1: Locating Fuel Filter Vent Valve
    GM1206090Courtesy of GENERAL MOTORS CORP.
  2. Attempt to start and run the engine. If the engine does not start, repeat step 1.
  3. Allow to run for 5 minutes at idle.
  4. Check for fuel leaks.
  5. Clear all engine diagnostic trouble codes (DTCs).
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