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Fuel System Pressure Release

Loosen fuel filler cap to release fuel tank pressure. Remove cover from relay/fuse box, located in left front corner of engine compartment, behind battery. See Fig 1. Remove fuel pump relay from relay/fuse box. Start and run engine until it stalls. Crank engine for about 3 more seconds to ensure residual fuel line pressure is released. Turn ignition off. Disconnect negative battery cable. Install fuel pump relay, cover, and tighten fuel filler cap.

Fig 1: Locating Fuel Pump Relay
G95A30825Courtesy of GENERAL MOTORS CORP.