Renault Koleos Service Repair Manual: Rail pressure sensor: Removal - Refitting

Renault Koleos Service Repair Manual / Engine and peripherals / Diesel injection / Rail pressure sensor: Removal - Refitting

M9R

Diesel injection

IMPORTANT Consult the safety and cleanliness advice and operation recommendations before carrying out any repair.

 

IMPORTANT Use the diagnostic tool before any operation is carried out on the injection circuit to check:
  • that the rail is not under pressure,
  • that the fuel temperature is not too high.

Working on the circuit with the engine running is strictly forbidden.

 

IMPORTANT During this operation, be sure to:
  • refrain from smoking or bringing red hot objects close to the working area,
  • be careful of fuel splashes when disconnecting the union.

 

WARNING To avoid any corrosion or damage, protect the areas on which fuel is likely to run.

 

WARNING Once the warranty period for the high pressure pump has expired, only the pressure regulator can be replaced separately.

Whilst the warranty period for the high pressure pump is still running, the high pressure pump should be replaced as a whole if the pressure regulator displays a fault.

REMOVAL

I - REMOVAL PREPARATION OPERATION

  • Remove:
    • the engine cover,
    • the battery.

Diesel injection

  • Rotate the clip (1) of the intercooler air inlet pipe on the turbocharger.

Diesel injection

  • Remove the intercooler air inlet pipe bolt (2) from the fuel pipe support.
  • Move aside the intercooler air inlet pipe.

Diesel injection

  • Remove:
    • the protector plate (3) from the injector rail protector,
    • the injector rail protector bolt (4) .

Diesel injection

  • Remove the wiring nut (5) .

Diesel injection

  • Remove the wiring bolt (6) .
  • Move aside the wiring.

II - OPERATION FOR REMOVAL OF PART CONCERNED

Diesel injection

  • Disconnect the rail pressure sensor connector.
  • Remove the rail pressure sensor (7) .
  • Insert the blanking plugs.

REFITTING

I - REFITTING PREPARATION OPERATION

  • Always replace the seal of the intercooler air inlet pipe.
WARNING Do not remove the blanking plugs from each component until the last moment.

Also, do not remove the components from their packaging until they are to be fitted to the vehicle.

II - REFITTING OPERATION FOR PART CONCERNED

  • Remove the blanking plugs.
Note: The rail pressure sensor has no seal.

 

Note: Use a torque wrench with an adapter for an open-ended spanner (27 mm) to tighten the rail pressure sensor.
  • Refit the rail pressure sensor.
  • Torque tighten the rail pressure sensor (80 N.m).
  • Connect the rail pressure sensor connector.

III - FINAL OPERATION.

  • Fit the wiring.
  • Refit:
    • the wiring bolt,
    • the wiring nut,
    • the injector rail protector bolt.
  • Torque tighten the injector rail protector bolt (8 N.m).

Diesel injection

  • Remove the intercooler air inlet pipe seal using a tweezers.

Diesel injection

Note: Check that the seal (8) on the intercooler air inlet pipe is fitted the correct way round.
  • Refit:
    • the new seal of the intercooler air inlet pipe,
    • the protector plate on the injector rail protector.
  • Turn the intercooler air inlet pipe to refit the clip in its housing.
  • Clip the intercooler air inlet pipe onto the turbocharger.
  • Refit the intercooler air inlet pipe bolt on the fuel pipe support.
  • Torque tighten the intercooler air inlet pipe bolt (8 N.m).
  • Connect the battery.
  • Prime the fuel circuit using the manual priming pump.
  • Refit the engine cover.
    Injector rail: Removal - Refitting

    Oxygen sensor: Removal - Refitting

    See More:

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