Fuel Line Coupler: Service Precautions

Fuel Line/Quick-Connect Fitting Precautions

The fuel line/quick-connect fittings (A), (B), (C), (D), (E), (F), (G), (H), (1), (J), (K) connect the fuel rail (L) to fuel feed tube (M), the fuel feed tube to the fuel line (N), the fuel line (O) to the fuel tank unit (P), the fuel tank unit to the fuel vent tube (Q), the fuel tank unit to the suction line (R), the fuel vent tube to the vent shut float tube (S), the suction tube to the return tube (T), the suction tube to the breather pipe (U), the breather pipe to the breather tube (V), the fuel vapor line (W) to the EVAP canister (X). When removing or installing the fuel feed tube, fuel tank unit or fuel tank, it is necessary to disconnect or connect the quick-connect fittings. Pay attention to the following:

- The fuel feed hoses, fuel line, and quick-connect fittings are not heat-resistant; be careful not to damage them during welding or other heat-generating procedures.
- The fuel feed hoses, fuel line, and quick-connect fittings are not acid-proof; do not touch them with a shop towel that was used for wiping battery electrolyte. Replace them if they come in contact with electrolyte or something similar.










- When connecting or disconnecting the fuel feed hoses, fuel line, and quick-connect fittings, be careful not to bend or twist them excessively. Replace them if they are damaged.




A disconnected quick-connect fitting can be reconnected, but the retainer on the mating line cannot be reused once it has been removed from the line. Replace the retainer when:
- replacing the fuel rail.
- replacing the fuel line.
- replacing the fuel pump.
- replacing the fuel filter.
- replacing the EVAP canister.
- replacing the fuel filler pipe.
- replacing the fuel tank.
- replacing the suction tube.
- it has been removed from the line.
- it is damaged.