Fuel tank and fuel line (Renault 19)

Fuel tank

The Renault engine is supplied with fuel through a network of pipes. For this purpose, a fuel tank is installed at the rear under the bottom of the car. From this tank, a fuel pump supplies fuel to the engine.

Tank

The fuel tank is installed in a well-protected place - between the rear wheels behind the rear axle beam. It is made of sheet steel and has a capacity of 55 liters. In the upper part of the fuel tank, in combination with the pipelines, a fuel sensor is installed, which shows the amount of fuel in the tank. The tank ventilation hoses are routed to the rubber part of the filler neck.

Precautions when handling fuel

When performing repair work on fuel system components, and especially when draining fuel from the tank, you must be extremely careful. Therefore, you should not undertake work without studying the following precautions:

• Always disconnect the cables from the battery terminals.
• Always drain fuel from the tank in the open air and only with a suitable pumping device. Never drain fuel through the fuel gauge opening, by turning the tank upside down or by sucking it out with your mouth through a hose - this can cause poisoning.
• Always keep CO₂ powder or foam fire extinguisher close to the work area.
• Never drain fuel from the tank over an inspection ditch. The toxic gases produced when removing fuel are heavier than air and can remain in the inspection ditch for several hours. Inhaling these gases for a long time can cause poisoning, and they are also explosive.
• Before starting work, make sure that there are no working electrical appliances or open fire sources nearby.
• An empty fuel tank is especially dangerous due to residual gases. Therefore, carry out all work with special care.
• The recommendations given here are only a small part of the safety rules and should therefore be considered only as a starting point when handling fuel.

Fuel drain

Filler neck of the tank with a lid

There is no drain plug in the tank. Since the fuel lines are located at the top of the tank, you cannot simply remove the fuel line and drain the fuel.

1. If the tank is full enough, insert the hose into the tank through the filler neck as far as possible.

2. Pinch the top opening of the hose with your fingers. Pull the hose out a little again and lower its end into a container located below the bottom of the tank.

3. If the hose is sufficiently immersed in the tank, the fuel will begin to flow into the container you placed underneath.

4. If the tank is almost empty, it is impossible to use this method, so pump out the fuel with a suitable device.

5. Sucking fuel of any kind with your mouth is dangerous to your health!

Removal the fuel tank

After removing the boot flooring, you can remove the fuel level sensor housing (2) from the recess in the body. When troubleshooting electrical problems, you can check whether there is a passage in the supply pipe (1) and in the sensor itself.

1. Disconnect the ground wire from the battery terminal.

2. Drain the fuel.

3. Fold back the trunk cover and remove the fuel level sensor casing.

4. Disconnect the fuel level sensor connector in the tank.

5. Mark both vent hoses on the fuel level sensor and disconnect them.

6. Raise the rear of the vehicle.

7. Unscrew the spare wheel mount and remove the wheel. Then remove the spare wheel mount from the bottom of the car.

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8. Clean the bottom around the tank to avoid clogging the fuel system.

9. Remove the filler neck clamps.

10. Disconnect the filler neck from the body.

11. Support or secure the fuel tank.

12. Loosen the fuel tank mounting bolts.

13. Lower the tank slightly and remove the safety clamp and fuel lines from the fuel pump.

14. Remove the tank completely and pull it out from under the car.

15. When installing the fuel tank, ensure that all fuel lines are free and not pinched or bent.

16. After finishing the work, fill the tank with fresh fuel and check all connections for leaks.