Beretta V6-173 2.8L (1989)
Fuel Pressure Release: Service and Repair
***UPDATED BY TSB 91-T-140 JUNE 1991
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.
When servicing the fuel system use the following precautions:
a. Put a "CAUTION FLAMMABLE" sign in the workshop.
b. Be sure shop is supplied with an adequate fire extinguisher.
c. Be sure to disconnect battery ground cable before any service work is done.
d. Use a suitable container to catch any fuel that may leak from the system during service.
e. Always relieve fuel system pressure before disconnecting any lines.
f.
If the key must be turned ON while servicing the fuel system, always disconnect or disable the ignition, to insure no sparks occur near fuel vapors.
PROCEDURE:
Tool required: J34730-1 Fuel Pressure Gauge or equivalent.
1. Disconnect the negative battery cable, to avoid fuel pump turn on, if an accidental attempt is made to start the engine.
2. Loosen the fuel filler cap to relieve tank vapor pressure.
3. Connect a fuel pressure gauge, J 34730-1 or equivalent, to the pressure connection. Wrap a shop towel around the fitting while connecting the
gauge to avoid spillage.
4. Install bleed hose into an approved container and open the valve to bleed the system pressure. Fuel connections are now safe for servicing.
5. Drain any fuel remaining in the gauge into an approved container.
When repair to the fuel system has been completed, START the engine and check all connections that were loosened for leaks.
