Fuel System Pressure Relief Procedure

FUEL SYSTEM PRESSURE RELIEF
Throttle Body Injection (TBI) With Internal Bleed

NOTE: Must Be Performed Before Disconnecting Fuel Line Fittings.

WARNING: To reduce the risk of fire and personal injury, it is necessary to relieve fuel system pressure before servicing fuel system components. A small amount of fuel may be released when servicing fuel pipes or connections. In order to reduce the chance of personal injury, cover fuel pipe fittings with a shop towel before disconnecting, to catch any fuel that may leak out. Place the towel in an approved container when disconnect is completed.

1. Ignition "OFF."
2. Disconnect negative battery cable to avoid possible fuel discharge if an accidental attempt is made to start the engine.
3. Loosen fuel filler cap to relieve tank vapor pressure.
4. The internal constant bleed feature of the Throttle Body Injection (TBI) unit relieves fuel pump system pressure when the engine is turned "OFF." Therefore, no further pressure relief procedure is required.
5. Fuel line fittings are now safe for servicing.
6. Perform service required.
7. Tighten fuel filler cap.
8. Ignition "OFF."
9. Connect negative battery cable.
10. Cycle ignition "ON" and "OFF" twice, waiting ten seconds between cycles, then check for fuel leaks.