Fuel Rail Assembly (DOHC): Removal
NOTE:
When servicing the fuel rail assembly, be careful to prevent dirt and other contaminants from entering the fuel passages. Fittings should be capped and holes plugged during servicing. Before removal, the fuel rail may be cleaned with a spray type engine cleaner such as AC Delco X-30 (or equivalent) following package instructions. Do not soak rails in liquid cleaning solvent.
- Disconnect negative battery terminal.
- Remove air intake tube and fresh air tube.
- Remove throttle cable.
- Remove power steering support bracket.
- Relieve fuel system pressure. Refer to RELIEVING FUEL PRESSURE .
- Remove attachment nut (10 mm hex) holding fuel feed line clip to intake manifold brace.
- Disconnect the fuel supply line by compressing the two plastic retainer tabs and pulling on the fuel supply line. Remove and discard the plastic retainer.
- Disconnect injector electrical connectors.
- Pull pop up CPA. It is not necessary to remove CPA from connector.
- Squeeze connector at CPA.
- Pull to remove.
- Remove fuel rail assembly attachment bolts.
NOTE: Use care in removing the fuel rail assembly to prevent damage to the electrical connector terminals and spray tips. The fuel injector is serviced as a complete assembly only. Since it is electrical, it should not be immersed in any cleaner.
- Remove fuel rail assembly. Carefully pull rail back and upward to remove injectors from the intake manifold ports.
NOTE: Whenever the fuel rail is removed for service, the injectors must be removed and upper and lower injector O-rings must be replaced.
- Remove clips retaining the fuel injectors and pull injectors out of the rail.
- Disassemble the injector O-ring seals from each injector using a special seal removal tool or brass seal pick and discard.