FixVault

Fuel System Pressure Release: 4.2L

Remove fuel tank cap. Remove fuel pump relay from underhood junction block. See Fig 1. Crank engine. Allow engine to start and stall. Crank the engine an additional 3 seconds. Turn ignition off. Disconnect negative battery cable. Install and tighten fuel filler cap. Install fuel pump relay.

Fig 1: Locating Fuel Pump Relay
G00156219Courtesy of GENERAL MOTORS CORP.