Workshop Manuals Factory service & repair Lancia
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Service news bulletins24 Special tools
Lancia Thesis Factory Service Manual (2002-2009)13 · Steering
13 · Steering & suspension

Power steering - r.r.

Make
Lancia
Model
Thesis Factory Service Manual
Year
2002–2009
Section
Power assisted steering › Power steering - r.r.
SteeringPower steering - r.r.

POWER STEERING - R.R.

Operation 4130B32 · POWER STEERING HYDRAULIC SYSTEM

3.0 V6, 3.2 V6

Removing

See in Op. 4130B20 POWER ASSISTED STEERING PUMP - R.R.

1. Undo the three fixing bolts (1a) and remove the support (1b).

POWER STEERING - R.R.

Refitting

- Position the support and tighten the fixing bolts to the recommended torque.

Value - daNmFasteningComponentØ
2,5BoltPOWER STEERING PUMP SUPPORT/BRACKETM8

See in Op. 4130B20 POWER ASSISTED STEERING PUMP - R.R.

2.4 20V, 2.4 JTD 10V

Removing

- Position the vehicle on a lift.

- Open the boot, remove the cover on the left hand side and disconnect the negative battery lead.

- Raise the vehicle on the lift.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

- Position a suitable container for collecting the engine coolant.

1. Disconnect the lower radiator pipe.

POWER STEERING - R.R.

- Working on the band securing the flexible section of the duplex pipe to the rigid section of the supply pipe from the reservoir, drain the power assisted steering system fluid into a suitable container.

- Then restore the connection for the two pipes using a new band.

2.4 20V

1. Undo the nuts fixing the catalytic converter to the centre section of the exhaust pipe.

2. Remove the mounting bracket for the front section of the exhaust pipe.

POWER STEERING - R.R.

2.4 20V, 2.4 JTD 10V

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 1048A28 vacuum air circuit resonator pipe - r+r

See in Op. 1048A21 Cold AIR INTAKE PIPE for air filter - R.R.

See in Op. 1048A10 AIR FILTER CASING - R.R.

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

2.4 JTD 10V

See in Op. 1076B50 Exhaust PIPE attachment to engine/manifold - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 1048A21 Cold AIR INTAKE PIPE for air filter - R.R.

See in Op. 1048A10 AIR FILTER CASING - R.R.

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

2.4 20V, 2.4 JTD 10V

1. Disconnect the coolant pipe retaining band on the cylinder head.

2. Undo the nut fixing the expansion tank (this nut also fastens the windscreen washer fluid reservoir).

3. Disconnect the electrical connection for the engine coolant level.

DescriptionConnector
3Engine coolant level sensorK026

4. Disconnect the pipe (4a) and lift up the expansion tank (4b) and remove it.

POWER STEERING - R.R.

1. Undo the bolt fixing the engine oil dipstick pipe.

2. Undo the bolt (2a), loosen the bolt (2b) and rotate the reaction rod connecting rod.

POWER STEERING - R.R.

2.4 20V

1. Undo the bolt (1a), open the retaining brackets (1b) and remove the engine coolant recovery pipe (1c).

POWER STEERING - R.R.

2.4 20V, 2.4 JTD 10V

- Position a hydraulic lift under the gearbox bellhousing.

1. Undo the bolts fixing the engine support to the gearbox.

- Gradually lower the hydraulic lift and rest the gearbox on the front crossmember.

POWER STEERING - R.R.

2.4 20V

1. Disconnect the electrical connections from the ignition coils.

DescriptionConnector
1Ignition coilA030A
DescriptionConnector
1Ignition coilA030B
DescriptionConnector
1Ignition coilA030C
DescriptionConnector
1Ignition coilA030D
DescriptionConnector
1Ignition coilA030E

2. Undo the bolts (2a) and remove the ignition coils (2b).

3. Disconnect the oil vapour recovery pipes.

4. Undo the bolts (4a) and remove the tappet cover (4b) complete with gasket.

POWER STEERING - R.R.

2.4 20V, 2.4 JTD 10V

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092A10 Auxiliary shaft pulley - R.R.

See in Op. 1032B10 TOOTHED timing BELT - R.R. for timing adjustment or replacement

1. Undo the three bolts (1a) and the hexagonal bolt (1b) and remove the automatic tensioning device (1c) for the auxiliary shaft drive belt.

POWER STEERING - R.R.

1. Undo the upper bolt (1a) and the lower bolt (1b) fixing the alternator.

2. Disconnect the electrical connections from the alternator and remove it.

DescriptionConnector
2AlternatorA010A
DescriptionConnector
2AlternatorA010B
POWER STEERING - R.R.

1. Undo the bolts fixing the power assisted steering pump pulley (to faciliate this operation, loosen the bolts before removing the auxiliary shaft drive belt).

POWER STEERING - R.R.

1. Undo the four bolts fixing the power assisted steering pump to the mounting; move the pump away from the mounting without disconnecting the pipes connected to it.

POWER STEERING - R.R.

1. Undo the bolt fixing the power assisted steering fluid supply pipe mounting bracket to the steering box.

2. Undo the lower bolts fixing the power assisted steering pump mounting bracket.

3. Undo the nut (3a) fixing the moving tensioner and the bolt (3b) fixing the timing drive belt fixed tensioner.

POWER STEERING - R.R.

2.4 20V

- Lower the vehicle on the lift.

1. Undo the bolts (1a) using the tool (1b) for counter-torque and remove the inlet side camshaft drive pulley (1c).

DescriptionCodeFunction
1bCounter-torque1.860.856.000Loosen/tighten inlet side camshaft drive pulley
POWER STEERING - R.R.

2.4 20V, 2.4 JTD 10V

1. Undo the upper bolt fixing the power assisted steering pump mounting.

2. Remove the power assisted steering pump mounting upwards taking care not to damage the bodywork.

POWER STEERING - R.R.

Refitting

- Position the power assisted steering pump mounting bracket taking care not to damage the bodywork.

- Tighten the bolts fixing the power assisted steering pump support to the recommended torque.

Value - daNmFasteningComponentØ
5BoltTHERMOSTATIC POWER ASSISTED STEERING PUMP MOUNTING/BRACKETSM10 X 1.25

2.4 20V

- Position the inlet side camshaft drive pulley and tighten the fixing bolts using the special tool for counter-torque.

DescriptionCodeFunction
Counter-torque1.860.856.000Loosen/tighten inlet side camshaft drive pulley
Value - daNmFasteningComponentØ
(inlet side) 0.9BoltTIMING DRIVEN PULLIESM6

2.4 20V, 2.4 JTD 10V

- Position the moving tensioner for the timing drive belt and tighten the fixing nut.

- Position the fixed timing belt tensioner and tighten the retaining bolt to torque.

Value - daNmFasteningComponentØ
5BoltFIXED TENSIONERM10 X 1.25

- Fasten the bolt fixing the power assisted steering fluid supply pipe mounting bracket to the steering box.

- Place the power assisted steering pump in position and fasten it to the mounting using the fixing bolts.

Value - daNmFasteningComponentØ
2.5BoltPOWER STEERING PUMPM8

- Position the power assisted steering pump drive pulley and secure it using the bolts.

- Position the alternator and fasten it using the bolts.

Value - daNmFasteningComponentØ
5NutALTERNATOR ASSEMBLYM10 X 1.25
Value - daNmFasteningComponentØ
7NutALTERNATOR ASSEMBLYM12 X 1.25

- Connect the electrical connections to the alternator.

DescriptionConnector
AlternatorA010A
DescriptionConnector
AlternatorA010B

- Position the auxiliary drive belt automatic tensioner.

Value - daNmFasteningComponentØ
5BoltSINGLE BELT MOVING TENSIONER VARIOUSM10 X 1.25
Value - daNmFasteningComponentØ
2.5BoltsSINGLE BELT MOVING TENSIONER VARIOUSM8

See in Op. 1032B10 TOOTHED timing BELT - R.R. for timing adjustment or replacement

See in Op. 1092A10 Auxiliary shaft pulley - R.R.

See in Op. 1092G10 Engine components single drive BELT - R.R.

- Position a hydraulic lift under the gearbox bellhousing.

- Screw in and tighten the bolt fixing the engine support to the gearbox to the recommended torque.

Value - daNmFasteningComponentØ
(on gearbox) 5BoltPOWER UNIT GEAR BOX END RIGID MOUNTM10 X 1.25

- Raise the vehicle on the lift.

- Tighten the nuts fixing the catalytic converter to the centre section of the exhaust pipe.

Value - daNmFasteningComponentØ
(to cable centre section) 2.8NutCATALYTIC CONVERTER (ONE)M8

2.4 20V

- Fit the mounting bracket for the front section of the exhaust pipe.

Value - daNmFasteningComponentØ
(on engine oil sump) 4NutCATALYTIC CONVERTER MOUNTM10 X 1.25
Value - daNmFasteningComponentØ
(to catalytic converter) 2.8BoltCATALYTIC CONVERTER MOUNTM8

- Position the tappet cover and secure it using the fixing bolts.

Value - daNmFasteningComponentØ
0.9BoltCAM COVERM6

- Position the ignition coils cover and secure them using the fixing bolts.

Value - daNmFasteningComponentØ
0.9BoltIGNITION COIL/REELM6

- Connect the electrical connections for the ignition coils, then reposition the wiring on the tappet cover retaining brackets.

DescriptionConnector
Ignition coilA030A
DescriptionConnector
Ignition coilA030B
DescriptionConnector
Ignition coilA030C
DescriptionConnector
Ignition coilA030D
DescriptionConnector
Ignition coilA030E

- Connect the oil vapour recovery pipes to the tappet cover.

- Position the coolant recovery pipe.

2.4 JTD 10V

See in Op. 1076B50 Exhaust PIPE attachment to engine/manifold - R.R.

2.4 20V, 2.4 JTD 10V

- Connect the connecting rod to the reaction rod and secure it using the bolts.

Value - daNmFasteningComponentØ
(to bracket on bodyshell) 5BoltPOWER UNIT REACTION RODM10 X 1.25
Value - daNmFasteningComponentØ
(to engine support) 5BoltPOWER UNIT REACTION RODM10 X 1.25

- Tighten the bolt fixing the engine oil dipstick pipe.

- Position the expansion tank and secure it using the nut.

- Connect the pipes and the electrical connection for the engine coolant level.

DescriptionConnector
Engine coolant level sensorK026

2.4 20V

See in Op. 1048A10 COMPLETE AIR FILTER -R.R.

See in Op. 1048A21 AIR INLET HOSE FROM INTAKE TO FILTER - R.R.

See in Op. 1048A28 vacuum air circuit resonator pipe - r+r

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

- Connect the negative battery lead, then close the boot.

See in Op. 0010T20 Engine REFRIGERANT FLUID - Change

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

- Remove the vehicle from the lift.

2.4 JTD 10V

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

See in Op. 1048A10 AIR FILTER CASING - R.R.

See in Op. 1048A21 Cold AIR INTAKE PIPE for air filter - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

- Refill the power assisted steering system using the appropriate fluid.

DescriptionQty.ComponentTypeClassification
TUTELA HP 20POWER ASSISTED STEERING CIRCUITOilATF DEXRON III

- Continue with the bleeding procedure following the instructions given below.

- With the front wheels raised off the ground and the engine switched off, carry out 4 or 5 complete rotations of the steering wheel (left and right).

- Check and, if necessary, top up the power assisted steering fluid level.

- Position the vehicle on the ground and start up the engine.

- Carry out 4 or 5 complete rotations of the steering wheel (left and right).

- If necessary, top up the power assisted steering fluid level.

- Connect the negative battery lead, then close the boot.

See in Op. 0010T20 Engine REFRIGERANT FLUID - Change

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

- Remove the vehicle from the lift.

2.4 JTD 20V

Removing

- Position the vehicle on a lift.

- Open the boot, remove the cover on the left hand side and disconnect the negative battery lead.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

See in Op. 7040D50 ENGINE COMPARTMENT UPPER SOUND INSULATION SHIELD - R.R.

See in Op. 1048B44 RIGID air supply PIPE from heat exchanger to intake manifold - R.R.

See in Op. 1048A56 UPPER RESONATOR - R.R.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092G21 Engine components single belt FIXED TENSIONER - R.R. with belt removed

See in Op. 1092A10 Crankshaft PULLEY - R.R.

See in Op. 1032D12 Timing system protective COVER(S) - R.R.

See in Op. 1032B10 TOOTHED timing BELT - R.R. for timing adjustment or replacement

See in Op. 1092G40 Engine components single belt cam TENSIONER - R.R.

1. Undo the two retaining bolts (1a) and remove the power assisted steering pump guard (1b).

POWER STEERING - R.R.

1. Undo the fixing bolts.

2. Remove the alternator rear mounting bracket.

POWER STEERING - R.R.

1. Undo the lower bolt securing the engine oil dipstick tube.

- Lower the lift.

2. Undo the upper bolt securing the engine oil dipstick tube.

3. Release the coupling for the engine wiring from the fastening on the pipe, then remove the engine oil dipsick pipe from the upper part of the engine compartment.

POWER STEERING - R.R.

1. Disconnect the front supply pipe from the fuel filter.

2. Disconnect the supply pipe to the pressure pump from the fuel filter.

3. Disconnect the supply pipe to the fuel return manifold from the fuel filter.

4. Disconnect the electrical connections for the diesel heater resistances.

DescriptionConnector
4Diesel pre-heating resistanceO020A
DescriptionConnector
4Diesel pre-heating resistanceO020B

- Disconnect the electrical connection for the water presence sensor.

DescriptionConnector
Water in diesel filter sensorK031

5. Undo the fixing nuts (5a) and remove the fuel filter assembly (5b).

POWER STEERING - R.R.

1. Undo the bolts fixing the power assisted steering pump and move it from its housing retracting it.

POWER STEERING - R.R.

- Open the protective cover and disconnect the alternator electrical connections.

DescriptionConnector
AlternatorA010A
DescriptionConnector
AlternatorA010B

1. Undo the upper bolts and the lower bolts fixing the alternator to the mounting.

2. Remove the alternator from the housing on the mounting.

POWER STEERING - R.R.

1. Undo the retaining bolt.

2. Remove the timing belt fixed tensioner.

POWER STEERING - R.R.

- Undo the bolt fixing the side plastic shield for the timing belt t the power assisted steering pump support.

1. Undo the bolts fixing the power assisted steering pump mounting.

2. Remove the power assisted steering pump mounting taking care not to damage the bodywork.

POWER STEERING - R.R.

Refitting

1. Posiion the power assisted steering pump mounting taking care not to damage the bodywork.

2. Tighten the bolts fixing the power assisted steering pump support to the recommended torque.

Value - daNmFasteningComponentØ
25BoltTHERMOSTATIC POWER ASSISTED STEERING PUMP MOUNTING/BRACKETSM10 X 1.25
POWER STEERING - R.R.

1. Position the fixed timing belt tensioner and tighten the retaining bolt to torque.

Value - daNmFasteningComponentØ
15BoltFIXED TENSIONERM10 X 1.25
POWER STEERING - R.R.

- Tighten the bolt fixing the side plastic shield for the timing belt t the power assisted steering pump support.

- Position the alternator in its housing and fasten it using the fixing bolts.

Value - daNmFasteningComponentØ
5NutALTERNATOR ASSEMBLYM10 X 1.25
Value - daNmFasteningComponentØ
7NutALTERNATOR ASSEMBLYM12 X 1.25

- Connect the electrical connections to the alternator.

DescriptionConnector
AlternatorA010A
DescriptionConnector
AlternatorA010B

1. Place the power assisted steering pump in position and fasten it to the mounting using the fixing bolts.

Value - daNmFasteningComponentØ
12.5BoltPOWER STEERING PUMPM8
POWER STEERING - R.R.

- Fit the fuel filter assembly and tighten the fixing nuts to torque.

Value - daNmFasteningComponentØ
2.4NutFUEL FILTERM8

- Connect the electrical connections for the sensors.

DescriptionConnector
Water in diesel filter sensorK031
DescriptionConnector
Diesel pre-heating resistanceO020A
DescriptionConnector
Diesel pre-heating resistanceO020B

- Connect the fuel pipes disconnected previously.

- Fit the engine oil dipstick pipe via the top of the engine compartment.

- Secure the engine cables coupling to the engine oil dipstick pipe.

- Raise the vehicle.

- Tighten the lower bolt securing the engine oil dipstick tube.

- Fit the alternator rer mounting bracket and tighten the fixing bolts.

- Fit the power assisted steering pump guard and tighten the retaining bolts.

See in Op. 1092G40 Engine components single belt cam TENSIONER - R.R.

See in Op. 1032B10 TOOTHED timing BELT - R.R. for timing adjustment or replacement

See in Op. 1032D12 Timing system protective COVER(S) - R.R.

See in Op. 1092A10 Crankshaft PULLEY - R.R.

See in Op. 1092G21 Engine components single belt FIXED TENSIONER - R.R. with belt removed

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1048A56 UPPER RESONATOR - R.R.

See in Op. 1048B44 RIGID air supply PIPE from heat exchanger to intake manifold - R.R.

See in Op. 7040D50 ENGINE COMPARTMENT UPPER SOUND INSULATION SHIELD - R.R.

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

- Open the boot, connect the negative battery lead and fit the cover on the battery.

- Remove the vehicle from the lift.

Parts & tools for this job For 2002 Lancia Thesis

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