FUEL RAIL & INJECTORS (PFI) R & I REMOVAL 1. Clean around injectors with carburetor cleaner and/or compressed air. Relieve fuel pressure. See FUEL SYSTEM in BASIC TESTING article. 2. Drain cooling system. Remove negative battery cable and air intake duct assembly. Remove throttle cables and brackets. Label and remove all electrical connectors, and vacuum hoses from throttle body assembly. Remove coolant hoses from throttle body. 3. Label and remove vacuum hoses and ground wires from intake plenum. Remove intake plenum support brackets and retaining nuts and bolts. Remove intake plenum from induction port manifold. 4. Disconnect electrical harness connectors from injectors. Using a back-up wrench on fuel rail fitting and tubing wrench on fuel pressure line, disconnect fuel pressure line from fuel rail. 5. Disconnect fuel return line at pressure regulator. Remove fuel rail bolts and spacers. Remove fuel rail with injectors and ensure injectors DO NOT fall out of fuel rail. If replacing injectors in fuel rail, replace all injector "O" rings and injector-to-rail retainer clips. INSPECTION Inspect all components for damage. Replace as required. INSTALLATION To install, reverse removal procedure. Lubricate new injector "O" rings with engine oil before installation. Use NEW "O" rings, seals and retainers in fuel rail when installing fuel inlet line and pressure regulator. Ensure intake mating surfaces are clean and smooth with no scratches. Ensure injectors are firmly seated into rail and intake port sockets. NOTE: DO NOT attempt to remove fuel rail inlet fitting. Fitting is staked in position in fuel rail and is NOT removable. Page 1 of 1 REMOVE/INSTALL/OVERHAUL -1990 Geo Storm 8/31/2008
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Sunday, August 31st, 2008 AT 10:35 AM
