We remove the fuel module to replace the fuel filter, as well as in case of malfunction of the module parts.
The module structurally consists of an electric pump, a fuel level sensor, a pressure regulator and a coarse filter.
Faults in which the fuel pump module is repaired:
- malfunction of the pressure regulator;
- failure of the fuel pump;
- clogging or damage to the coarse filter;
- Failure or incorrect operation of the fuel gauge sensor.
Symptoms of a fuel pump malfunction are a decrease in the power and dynamics of the car, dips in acceleration mode, unstable engine operation in idling mode.
A sign of deterioration in fuel pump performance is a "howl" or a constant unpleasant hum, with excessive wear on the pump part due to operation with poor, unrefined gasoline.
The smallest mechanical impurities contained in such fuel contribute to the wear of the rubbing surfaces of the pump part.
The reason for the rapid wear of the pump is also driving with a low level of fuel in the tank, with the reserve fuel indicator light on.
Because the electric pump is cooled by the fuel in the tank.
To remove the fuel pump module:
We prepare the car for the task.
We reduce the fuel pressure, as described in the article - "Replacing the additional Renault Duster fuel filter"
Disconnect the negative terminal of the battery.
In the car, recline the rear seat cushion
Pry off with a flathead screwdriver and pry up the fuel filler cap.
Use a flat screwdriver to pry out the clamp of the wire block
Disconnect the block from the module connector
Press on the latch of the fuel pipe tip
Disconnect the tip from the fitting of the module cover
We try to unscrew the clamping ring of the module with a mounting spatula
If it doesn’t work out, we make a bracket from a metal bar in size
Unscrew the clamping ring and remove it
Carefully remove the fuel module from the tank, removing the float of the level sensor from the hole in the tank
Removing the rubber seal
Having poured out the remaining fuel from the fuel module, disconnect the wiring block of the fuel gauge sensor
We release the clamp of the fuel gauge sensor
Removing the fuel gauge sensor
Using a screwdriver, release the three glass clips
Remove the glass from the filter housing
The connection of the channel of the fuel pressure regulator is sealed with a rubber ring
The glass contains the fuel pressure regulator 1 and the anti-drain valve 2
Remove strainer from pump fitting.
Using a screwdriver, press the fuel module cover retainer
Removing the lid
Remove the spring from the guide
Disconnect the fuel pump wiring harness from the connector on the inside of the fuel module cover.
Remove the fuel pump from the fuel filter housing
We heat the plastic corrugated tube with a technical hair dryer or hot water
Remove the tube from the pump nozzle
We install all the parts in the reverse order.
During the installation of the module, we control the correct location of the sealing ring.
Installing the module in the tank
When installing, orient the fuel module so that the arrow on its cover is opposite the arrow on the tank.
We press on the module cover from above and screw the clamping ring onto the fuel tank neck until the module cover is firmly pressed against the neck.
Then we turn the clamping ring to the position where arrow 3 on the ring is opposite arrows 1 and 2.
We put the tip of the fuel pipe on the fitting of the module cover until the latches click.
After installing the module, turn on the ignition and check the tightness of the connections.
When installing the hatch cover, orient it so that arrow 1 on the cover is opposite groove 2.