Fuel Pressure Release & Fuel Line Connections
WARNING:
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.
NOTE:
For reassembly reference, label all electrical connectors, vacuum hoses and fuel lines before removal. Also place mating marks on engine hood and other major assemblies before removal.
CAUTION:
Fuel system is under pressure. Release pressure before servicing fuel system components.
- Remove fuel cap to release fuel tank pressure. Using EFI Pressure Gauge (T80L-9974-B), release fuel pressure from pressure relief valve on right rear corner of fuel rail. See Figure.
- Before disconnecting fuel lines, disconnect negative battery cable. To disconnect fuel lines, remove retaining clip from outside of fuel line coupling.
- Use Spring Lock Coupling Remover (D87L-9280-A) for 3/8" line, or (D87L-9280-B) for 1/2" line. Install spring lock coupling remover on fuel line coupling so it enters cage opening. See Fig 1.
- Push spring lock coupling remover into cage opening to release female fitting from garter spring. Pull couplings apart. Remove spring lock coupling remover.
- Install fuel lines as follows. Install new "O" rings on fuel lines. Use only specified fuel resistant "O" rings (Brown in color). Before installing, lightly coat "O" rings with clean engine oil. Clean fittings and replace garter spring (if necessary).
- Fit female fitting to male fitting and push until garter spring snaps over flared end of female fitting. Ensure lines lock together, and garter spring is over female fitting flared end.
- Install retaining clip. Ensure horseshoe portion of clip is over coupling. DO NOT install retaining clip over rubber fuel line.
NOTE:
Install Black retaining clip on fuel supply line and Gray clip on fuel return line.