Fuel System Pressure Release

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

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

On 2.0L, loosen fuel filler cap to release fuel tank pressure (do not tighten at this time). Remove fuel pump relay. Start and run engine until it stalls. Crank starter for 3 seconds to remove remaining fuel from fuel lines. Turn ignition off. Reinstall fuel pump relay. Disconnect negative battery cable to avoid possible fuel discharge in accidental attempt to start engine.
On all models except 2.0L, disconnect negative battery cable. Loosen fuel filler cap. Install Fuel Pressure Gauge (J-34730-1A) on fuel pressure connector of fuel rail. Wrap a shop towel around pressure connection when installing fuel pressure gauge to absorb fuel leakage. Place gauge bleed hose in container. Open bleed valve to release fuel pressure.