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Fuel Pressure Release

  1. Loosen fuel tank cap to release fuel tank pressure. Remove cover from main fuse box located in left front corner of engine compartment, behind the battery. Remove coolant reservoir from bracket. Remove main fuse box retaining screws. From underneath main fuse box, release 2 locking tabs of fuel pump relay. See Fig 1 .
  2. Remove fuel pump relay from main fuse box. Disconnect electrical connector from fuel pump relay. Start engine and allow to idle until engine dies. Crank engine for approximately 10 seconds to ensure residual fuel line pressure is released. Turn off ignition. Install fuel pump relay.
Fig 1: Locating Fuel Pump Relay
G91C16339Courtesy of GENERAL MOTORS CORP.