Fuel Line Coupler: Service and Repair
Fuel Line/Quick-Connect Fitting RemovalNOTE: Before you work on the fuel lines and fittings, read the "Fuel Line/Quick-Connecting Fitting Precautions".
1. Relieve the fuel pressure.
2. Check the fuel quick-connect fittings (A) for dirt, and clean them if needed.
3. Place a rag or shop towel over the quick-connect fitting. Hold the connector (A) with one hand, and squeeze the retainer tabs (B) with the other hand to release them from the locking tabs (C). Pull the connector off.
NOTE:
- Be careful not to damage the line (D) or other parts. Do not use tools.
- If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily.
- Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
4. Check the contact area (A) of the line (B) for dirt or damage.
- If it is dirty, clean it.
- If it is rusty or damaged, replace the fuel filter or the fuel feed line.
5. To prevent damage and keep foreign matter out, cover the disconnected connector and line ends with plastic bags (A).
NOTE: The retainer cannot be reused once it has been removed from the line. Replace the retainer when:
- replacing the fuel rail.
- replacing the fuel feed line.
- replacing the fuel pump.
- replacing the fuel filter.
- replacing the fuel gauge sending unit.
- replacing EVAP purge line.
- replacing EVAP canister.
- replacing the fuel tank.
- it has been removed from the line.
- it is damaged.
Installation
NOTE: Before you work on the fuel lines and fittings, read the "Fuel Line/Quick-Connecting Fitting Precautions".
1. Check the contact area (A) of the line (B) for dirt or damage, and clean it if needed.
2. Insert a new retainer (A) into the connector (B) if the retainer is damaged, or after:
- replacing the fuel rail.
- replacing the fuel feed line.
- replacing the fuel pump.
- replacing the fuel filter.
- replacing the fuel gauge sending unit.
- replacing EVAP purge line.
- replacing EVAP canister.
- replacing the fuel tank.
- it has been removed from the line.
- it is damaged.
- use the same manufacture retainer and the same size retainer when the replacing the retainer.
3. Before connecting a new fuel tube/quick-connect fitting assembly (A), remove the old retainer from the mating line.
4. Align the quick-connect fittings with the line (A), and align the retainer locking tabs (B) with the connector tabs (C). Then press the quick-connect fittings onto the line until both retainer pawls lock with a clicking sound.
NOTE: If it is hard to connect, put a small amount of new engine oil on the line end.
5. When you are reconnecting the connector with the old retainer, make sure the connection is secure and the tabs (A) are firmly locked into place; check visually and also by pulling the connector (B). When you are replacing the fuel line with a new one, make sure you remove the ring pull (C) upwards after you confirm the connection is secure.
NOTE: Before you remove the ring pull, make sure the fuel line connection is secure. If the connection is not secure, the ring pull could break when you try to remove it.
6. Reconnect the negative cable to the battery, and turn the ignition switch ON (II) (but do not operate the starter meter), The fuel pump will run for about 2 seconds, and fuel pressure will rise. Repeat two or three times, and check that there is no leakage in the fuel supply system.