Fuel Line Coupler: Service Precautions

Fuel Line/Quick-Connect Fitting Precaution







The fuel line/quick connect fittings connect the fuel rail (A) to fuel feed hose (B), fuel feed hose (B) to the fuel feed hose (C), the fuel feed hose (C) to the fuel line (D), the fuel line (E) to the fuel tank unit (F) and the fuel vapor line (G) to the EVAP canister (H). When removing or installing the fuel feed hose, 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 came into 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 fuel gauge sending unit.
- it has been removed from the line.
- it is damaged.

NOTE: When replacing a retainer, use the same size and manufacturer.