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Engine Controls - 4.3L (Introduction): Maintenance Chevrolet Silverado 3500

Fuel Tank Draining Procedure

  1. Disconnect the negative battery cable. Refer to «Battery Negative Cable Disconnect/Connect Procedure (Single Battery)»(ref-184144-S12006988322005082200000) or «Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery)»(ref-184144-S01033869922005082200000) in Engine Electrical.
  2. Remove the fuel fill cap. CAUTION: Refer to Gasoline/Gasoline Vapors Caution in Cautions and Notices.
  3. Use a hand or air operated pumping device in order to drain as much fuel out of the tank, through the fuel fill pipe as possible.