Lemans FWD L4-121 2.0L (1989)
Fuel Pressure Release: Service and Repair
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.
g. NEVER turn the ignition on while servicing the fuel system unless the electric fuel pump is disabled.
PROCEDURE:
1. Loosen fuel filler cap to relieve tank vapor pressure.
2. Raise the vehicle and disconnect fuel pump electrical connector at fuel tank.
3. Lower vehicle.
4. START engine and RUN until fuel supply remaining in fuel pipes is consumed. Engage starter for 3 seconds to relieve the remaining fuel pressure.
5. Perform required tests or repairs.
6. Raise vehicle and reconnect fuel pump electrical connector at fuel tank.
7. START vehicle for 10 seconds. Shut vehicle OFF and check for leaks.
8. Retighten the fuel tank cap.
