Fuel Pressure Relief

WARNING: This page does not describe the selected car, but rather 36 other vehicles, including the 2000 Saturn SW2, 2000 Saturn SL2, 2000 Saturn SL1, 2000 Saturn SL, and 2000 Saturn SC2. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Always relieve fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components.

Fuel system is under pressure. Pressure must be relieved prior to servicing fuel system. Fuel pressure may be relieved by using one of the following methods:

On 1.0L, 1.3L and 1.8L, loosen fuel filler cap to relieve tank pressure (DO NOT tighten at this time). On 1.0L, remove circuit opening relay. On 1.3L and 1.8L, remove fuel pump relay. On all models, start and run engine until it stalls. Crank starter for 3 seconds to remove remaining fuel from fuel lines. Turn ignition off. Reinstall circuit opening relay or fuel pump relay. Disconnect negative battery cable to avoid possible fuel discharge in accidental attempt to start engine.
On 1.9L, 3.0L, 3.1L, 3.4L, 3.5L, 3.8L, 4.6L and 5.7L, disconnect negative battery terminal. Loosen fuel filler cap. Install Fuel Pressure Gauge (J-34730-1A) on fuel pressure connector of fuel rail. Wrap shop towel around pressure connection when installing fuel pressure gauge to absorb fuel leakage. Install gauge bleed hose in container. Open bleed valve to bleed fuel pressure.
On 2.2L and 2.4L Cavalier and Sunfire, loosen fuel filler cap to relieve tank pressure (DO NOT tighten at this time). Disconnect fuel pump connector. Start and run engine until it stalls. Crank starter for 3 seconds to remove remaining fuel from fuel lines. Turn ignition off. Reconnect fuel pump connector. Disconnect negative battery cable to avoid possible fuel discharge in accidental attempt to start engine.
On 2.2L Saturn, connect scan tool to Data Link Connector (DLC). Start engine. Using scan tool special tests function, select PCM/EC, and then select fuel delivery. Select FUEL PUMP and command fuel pump off. Engine will stall in 3-5 seconds. Turn ignition off.