Fuel Pressure Release: Service and Repair

FUEL PRESSURE RELIEF PROCEDURE

TOOLS REQUIRED
J 34730-1A Fuel Pressure Gauge.

CAUTION: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.

After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.

1. Remove the injector sight shield.





CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

2. Disconnect the negative battery terminal.
3. Loosen the fuel filler cap in order to relieve tank vapor pressure.
4. Connect a J34730-1A fuel pressure gauge to the fuel pressure connection. Wrap a shop towel around the fuel pressure connection while connecting the fuel pressure gauge in order to avoid spillage.
5. Install the bleed hose into an approved container and open the valve to bleed the fuel system pressure. The fuel connections are now safe for servicing.
6. Drain any fuel remaining in the fuel pressure gauge into an approved container.
7. Replace the injector sight shield.
8. Reconnect the negative battery terminal.