Aeromotive 14145 - 07-09 5.4L GT500 FUEL RAIL SYSTEM - Manual (Page 5)

27. Connect the final AN-08 90-degree hose end to the rear of the left side fuel rail and the AN-08
straight hose end to the rear of the fuel pressure sensor block as shown below. Plan a route between
the two hose ends, measure the length of fuel line needed. See section titled Hose and Fitting
Assembly for fuel line assembly instructions. Once the hoses are assembled, ensure there is no
debris in the hose and install them.
28. Reassemble the vehicle using the reverse of the foregoing removal procedure.
29. Remove the 1/8 NPT pipe plug from the fuel supply adapter tee fitting and attach a suitable fuel
pressure gauge if desired.
Ensure that any spilled gasoline and any gasoline soaked shop towels are cleaned up and
removed from the vicinity of the vehicle!
30. Reconnect the battery and turn the ignition to the ON position WITHOUT starting the car. After several
seconds, check the fuel pressure. If there is no fuel pressure, turn the ignition key to the OFF position,
wait one minute, return the ignition to the ON position, and recheck the fuel pressure. Repeat this
ignition OFF and ON procedure until the fuel pressure gauge registers fuel pressure.
With the fuel pressure gauge registering fuel system pressure, check for fuel leaks from and
around the Aeromotive fuel line adapter, fuel rails, all fuel lines and connections! If any fuel leaks
are found, turn the ignition key to the OFF position, remove any spilled fuel and repair the leak
before proceeding!
31. Once the fuel pressure gauge registers fuel system pressure and there are no fuel leaks, start the
engine.
32. Turn off the engine and allow it to cool. If you do not want to keep the fuel pressure gauge on the
vehicle, relieve the fuel system pressure as instructed in the appropriate vehicle service manual.
Remove the fuel pressure gauge and reinstall the 1/8 NPT pipe plug, using thread sealant.
33. Test drive the car to insure proper operation and re-check the fuel system for leaks. If any leaks are
found, immediately shutoff the engine and repair the leak(s)!