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Engine Controls - (Introduction) - 4.8L, 5.3L, and 6.0L: Maintenance Hummer H2 I

Fuel Tank Draining Procedure

  1. Loosen the fuel filler cap in order to relieve the fuel tank vapor pressure.
  2. Raise the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-187252-S32674187102005083100000) in General Information.
  3. Loosen the fuel fill hose clamp.
  4. Disconnect the fuel fill hose from the fuel fill pipe.
  5. Use a hand or air operated pump device in order to drain as much fuel through the fuel fill hose as possible.