Fuel System Pressure Relief Procedure

TOOL REQUIRED
J34730-1 Fuel Pressure Gauge or equivalent.

WARNING: To reduce the risk of fire and personal injury, it is necessary to relieve the fuel system pressure before servicing fuel system components. After relieving system pressure, a small amount of fuel may be released when servicing fuel lines or connections. In order to reduce the chance of personal injury, cover fuel line 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.

PROCEDURE
1. Loosen the fuel filler cap in order to relieve the tank pressure (do not tighten at this time).
2. Raise the vehicle.
3. Disconnect the fuel pump electrical connector.
4. Lower the vehicle.
5. Start and run the engine until the fuel supply remaining in the fuel pipes is consumed. Engage the starter for 3.0 seconds in order to assure relief of any remaining pressure.
6. Raise the vehicle.
7. Connect the fuel pump electrical connector.
8. Lower the vehicle.
9. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine.