Renault Clio: Exhaust fuel injector: Removal - Refitting
K9K, and 772
IMPORTANT
To avoid all risk of damage to the systems, apply
the safety and cleanliness instructions and operation
recommendations before carrying out any
repair:
- see Exhaust: Precautions for repair (19B,
Exhaust),
- see Vehicle: Precautions for repair (01D,
Mechanical introduction).
IMPORTANT
Wear protective gloves during the operation.
IMPORTANT
Wear heat protective gloves during the operation.
PARTS AND CONSUMABLES FOR THE
REPAIR WORK
- Parts always to be replaced:
- the diesel injector seal on its cooler.
- Consumables:
- cleaning cloths (part no. 77 11 211 707).
REMOVAL
I - REMOVAL PREPARATION OPERATION
- Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 392, 02, Lifting equipment).
- Connect Diagnostic tool to the vehicle.
- Run command AC238 "Fuel pump relay" in order to
lower the fuel pressure in the exhaust fuel injector
supply system.
Note:
Repeat this operation 4 times in order to discharge
the residual pressure as much as possible.
- Disconnect the battery (see Battery: Removal - Refitting)
(MR 392, 80A, Battery).
- Remove:
- the engine cover,
- the engine undertray
- the battery (see Battery: Removal - Refitting)
(MR 392, 80A, Battery),
- the battery tray (see Battery tray: Removal - Refitting)
(MR 392, 80A, Battery).
II - OPERATION FOR REMOVAL OF PART
CONCERNED
- From underneath the engine compartment, disconnect
from the diesel injector on the catalytic pre-converter:
- the diesel supply pipe union (1),
- the electrical connector (2).
Note:
Be careful not to damage the connector.
Note:
Prepare for diesel outflow (pressurised circuit).
- Remove:
- the retaining bracket bolt (3) from the diesel injector
on the catalytic pre-converter using a ratchet fitted
with an extension and a T45 male torx socket,
- the diesel injector retaining bracket (4) on the catalytic
pre-converter,
- the diesel injector (5) with its seal.
Note:
To remove and refit the injector, lift the vehicle
and operate from underneath.
- Discard the diesel injector cooler seal.
REFITTING
I - CLEANING THE DIESEL INJECTOR
- Immerse the injector in a container of diesel.
- Wipe using new cleaning cloths (part no. 77 11 211
707).
WARNING
It is strictly forbidden to clean the injectors with:
- a wire brush,
- an emery cloth,
- an ultrasonic cleaner.
II - REFITTING OPERATION FOR PART
CONCERNED
- Always replace the diesel injector seal on its cooler.
- Fit the diesel injector fitted with its new seal and its
retaining bracket on the cooler.
WARNING
Before tightening the bracket, check that the
injector is correctly positioned in relation to the
bracket.
Note:
Before tightening the bracket bolt, ensure that the
injector is positioned properly in relation to its
bracket: flat surfaces to guide the bracket on the
injector ensure this correct position.
If the injector is incorrectly positioned, the entire
particle filter will not work properly as the diesel
fuel jet will not be correctly oriented.
- Torque tighten the mounting bolt of the diesel injector
retaining bracket (21 N.m).
- Connect to the diesel injector:
- the diesel supply pipe union,
- the electrical connector.
III - FINAL OPERATION
- Refit:
- the battery tray (see Battery tray: Removal - Refitting)
(MR 392, 80A, Battery),
- the battery (see Battery: Removal - Refitting)
(MR 392, 80A, Battery),
- Connect the battery (see Battery: Removal - Refitting)
(MR 392, 80A, Battery).
- Connect the Diagnostic tool to the vehicle.
- Run command AC 237 : fuel pump relay.
- Wait for the command to end, then lift the vehicle
and check that there are no leaks on the injector circuit:
deal with any leaks.
- Refit:
- the engine cover,
- the engine undertray.
READ NEXT:
K9K, and 772
REMOVAL
I - REMOVAL PREPARATION OPERATION
Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (MR 392, 02, Lifting equipment).
Apply the discharge procedure for
I - PARTS AND CONSUMABLES FOR THE REPAIR
1 - Parts always to be replaced:
the exhaust trunking (if fitted)
the seal or sealing ring on the connection between the
catalytic converter or catalytic
K4J or K4M
IMPORTANT
Catalytic converters contain ceramic fibres: these
are contained within a closed unit, and cannot disperse.
Cutting or drilling catalytic converters is prohibited.
REMOVAL
I - R
SEE MORE:
REMOVAL
I - REMOVAL PREPARATION OPERATION
Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
Remove:
the engine cover,
the engine undertray,
the radiator mounting cross member bolt on the
right-hand side,
the sub-frame tie-rod bolt on
D4F or K4J or K4M or M4R
IMPORTANT
During this operation, be sure to:
be careful of fuel splashes when disconnecting the
union.
IMPORTANT
Wear goggles with side protectors for this operation.
IMPORTANT
Wear leaktight gloves (Nitrile type) for this operation.
WARNING
To avoid any corrosion or da
© 2016-2024 Copyright Renault Clio Owners Club