Fuel Pressure Release
WARNING:
Always release fuel pressure before disconnecting any fuel injection-related component. DO NOT allow fuel to contact engine or electrical components.
CAUTION:
When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in the GENERAL INFORMATION section before disconnecting battery.
- Disconnect negative battery cable. Remove fuel tank cap to release fuel tank pressure.
- Remove protective cap from fuel pressure test port on fuel rail. Fuel pressure test port is located at passenger's side front corner of fuel rail, just below thermostat housing.
- Place end of Fuel Pressure Gauge Hose (C-47991) into approved gasoline container. Screw remaining end of fuel pressure gauge hose onto fuel pressure test port. Fuel pressure will be released into gasoline container.
- After fuel pressure is released, remove fuel pressure gauge hose from fuel pressure test port. Reinstall protective cap on fuel pressure test port and fuel tank cap. Reinstall negative battery cable.