Fuel System Cleaning Procedure

REMOVE OR DISCONNECT
- Negative battery cable.
- Engine harness connector on the distributor.

NOTE Have a dry chemical (Class B) fire extinguisher near the work area.

- Fuel from the tank. Refer to FUEL TANK DRAINING
- Fuel tank. Refer to COMPONENT REPLACEMENT AND REPAIR PROCEDURES/FUEL TANK ASSEMBLY
- Fuel gauge and pump unit.
- In-line fuel filter.

INSPECT
- In-line fuel filter, for contamination.
- Replace the fuel filter, if it is plugged.

CLEAN
Fuel lines, by applying air pressure in the opposite direction of the fuel flow.

INSTALL OR CONNECT
- A new fuel strainer (if necessary) on the fuel sender and pump unit.
- Fuel gauge and pump unit, with a new seal into the fuel tank.

NOTE Care should be taken not to fold over or twist the strainer, when installing the sending unit, as this will restrict fuel flow.

- Fuel tank.

PURGE
- Disconnect the fuel feed line at the front of the vehicle.
- Install a hose to the fuel feed line at the front of the vehicle and insert the other end of the hose into a 3.8L (One gallon) fuel can.
- Reconnect the negative battery cable.
- Fill tank with twenty-three liters (six gallons) of clean fuel into the tank.
- Energize the fuel pump relay, to operate the fuel pump, until two liters (one half gallons) of fuel flows into the fuel can. This will purge the fuel pump.

CONNECT
Engine harness connector to the distributor.

CHECK
Check all connections, for leaks, and tighten all hose clamps.