4-Cylinder 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 GENERAL INFORMATION before disconnecting battery.
- Disconnect negative battery cable. Remove fuel tank cap to release fuel tank pressure.NOTE: Negative battery cable may be disconnected from remote battery terminal on driver's side strut tower.
- Remove protective cap from fuel pressure test port on fuel rail. Fuel pressure test port is located at center of fuel rail. 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. Fuel system components may now be serviced. Cover fuel lines with shop towel before disconnecting, as some residual fuel pressure may exist.