Fuel Pressure Release: Service and Repair

WARNING: Do not smoke, carry lighted tobacco or open flame of any type when working on or near any fuel related component. Highly flammable mixtures are always present and may be ignited, resulting in possible personal injury.

CAUTION: Fuel supply lines will remain pressurized for long periods of time after engine shut down. This pressure must be relieved before servicing of the fuel system is begun. A valve is provided on the throttle body for this purpose. Remove the air cleaner and relieve system pressure by using Rotunda pressure gauge tool T80L-9974-A or equivalent and drain the system through the drain tube.

PROCEDURE

1. Unscrew and remove fuel pressure relief valve cap.

WARNING Do not use multiport fuel injection (MFI) fuel pressure gauge tool-9974-B on flexible fuel vehicle of damage to the gauge will occur.

2. Connect Rotunda Fuel (Methanol/Ethanol) Pressure Test Kit 134-R0035 or equivalent to fuel pressure relief valve on fuel injection supply manifold.
3. Open the manual valve on the Rotunda Fuel (Methanol/Ethanol) Pressure Test Kit 134-R0035 or equivalent to relieve fuel system pressure.