Engine does not start in any conditions

Make: Lancia
Model: Thesis Factory Service Manual
Year: 2002–2009
Section: Starting › Engine does not start in any conditions

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Fault diagnosisEngine does not start in any conditions

ENGINE DOES NOT START IN ANY CONDITIONS

2.4 JTD 10V

The engine does not start. When the key is turned the instruments light up as normal, the starter motor turns, but the engine does not start up.

The MIL warning light should come on with the ignition on and go out once the engine is started;

If there is a problem with the reconfigurable matrix, there is a CODE message which only lights up when there is a fault.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Turn the key to the ON position and check that the CODE is working properly Then check: that the inertia switch has not been operated; presence of fuel in the tank; air intake circuit; correct operation of the flow modification valve; correct operation of the exhaust manifolds. that there are no leaks or seepage from the high and low pressure fuel pipes	Move on to Step	1. CODE failure message present	1. Continue following the instructions in the Table Continue following the instructions in the table K52 CODE FAILURE WARNING LIGHT ON
			2. Intertia switch operated	2. Restore correct operation
			3. Lack of fuel	3. Add fuel to the tank
			4. Filter dirty or partly blocked	4. Replace the filter element See in Op. 1048A14 air cleaner filtering element - replace.
			5. Flow modulation valve working incorrectly	Move on to Step
			6. Exhaust blocked	6. Restore exhaust manifolds to working order
			7. Presence of leaks	7. Eliminate leaks
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Carry out active diagnosis of flow modification valve	Move on to Step	Solenoid valve not working	Check continuity of wiring, if necessary, replace solenoid valve See in Op. 1060G56 SOLENOID VALVE ON VACUUM RESERVOIR FOR PNEUMATIC VALVE - R.R.
2	FLOW MODIFICATION VALVE ACTUATOR CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check operation of the pneumatic actuator	Move on to Step	Actuator not working	Replace electro-pneumatically controlled throttle casing See in Op. 1060G52 PNEUMATICALLY CONTROLLED THROTTLE CASING - REPLACE
3	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check: no errors in control unit parameter plausibility	Move on to Step	1. Error detected in the control unit	1. Continue following the instructions for the diagnostic equipment
			2. Parameters not plausible	2. Continue following the instructions for the diagnostic equipment
			3. No communication with the control unit	3. Restore the connection between the engine control unit and the diagnostic connector
4	HIGH PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check, as described in test 1060D, that the diesel pressure parameter is correct.	Move on to Step	Pressure not correct	Move on to Step
5	INJECTOR HIGH PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check, as described in procedure 1060C, that the leaks of diesel from the injector recirculation connections are only slight and about the same as one another.	Move on to Step	Persistent leak from one injector	Replace the injector
6	LOW RETURN PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check, as described in test 1060A, that the pressure in the return pipe to the tank is less than 1 bar	Move on to Step	Pressure above the maximum limit: return pipe to the tank obstructed	Repair the pipe, if necessary, replace it
7	LOW SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check, as described in test 1060B, that the diesel pressure between the filter and the pressure pump is between 2 and 3 bar	Move on to Step	Pressure below the minimum limit or above the maximum limit	Move on to Step
8	LOW SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Constrict the return pipe, downstream of the valve, and carry out test 1060B again with the pipe constricted checking that the pressure at the filter outlet stays below 2 bar	Move on to Step	Pressure rises to 5 bar: pressure regulator valve on filter mounting incorrectly adjusted	Replace the valve See in Op. 1044B16 Fuel supply/return adjustment valve on fuel filter - R.R.
9	LOW SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the difference in pressure upstream and downstream of the filter is less than 1 bar	Move on to Step	Difference in pressure more than 1 bar	Replace the fuel filter cartridge See in Op. 1044B20 fuel filter filtering element - replace
10	CHECK LOW SUPPLY PRESSURE	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the supply pump pressure at the filter inlet is more than 2.2 bar	Move on to Step	Pressure below 2.2 bar	Move on to Step
11	LOW SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Measure the difference in pressure between the electric pump outlet and the filter inlet and check that it is less than 0.3 bar	Move on to Step	Difference in pressure more than 0.3 bar	Replace the pipe
12	LOW SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check, as decribed in test 1040AA, that the pump supply voltage is equal to 12V and that the current absorption is between 2 and 10 Ampere	Move on to Step	1. Voltage < 12 volt	1. Check electrical wiring (Wiring Diagram ) E5050 DIESEL ENGINE ELECTRONIC MANAGEMENT
			2. Current > 10 Amps: pump defective	2. Replace the fuel pump assembly See in Op. 1040A70 SUBMERGED PUMP ASSEMBLY complete with level gauge - R.R.
			3. Current < 2 Amps: pump obstructed	3. Replace the fuel pump assembly and clean the fuel tank See in Op. 1040A70 SUBMERGED PUMP ASSEMBLY complete with level gauge - R.R.
13	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Replace the DRV high pressure regulation valve and check that the fault is no longer present.		Fault persists	Move on to Step
14	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Replace the pressure pump and check that the fault is no longer present		Fault persists	Contact the Service Department for further information on the problem
15	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Replace the engine management control unit and check that the fault is no longer present		Fault persists	Contact the Service Department for further information on the problem

2.0 TB, 2.4 20V, 3.0 V6

The engine does not start. When the key is turned the instruments light up as normal, the starter motor turns, but the engine does not start up.

The MIL warning light should come on with the ignition on and go out once the engine is started;

If there is a problem with the reconfigurable matrix, there is a CODE message which only lights up when there is a fault.

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the following, in order: the the CODE fault message is not present at the matrix that the inertia switch has not been operated	Move on to Step	1. CODE fault message present at the matrix	1. Continue following the instructions in Table K108 Continue following the instructions in the table K108 DISPLAY OF FAULT CODES ON MATRIX - ENGINE STARTS
		Move on to Step	2. Intertia switch operated	2. Restore correct operation
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket.Check: that there are no errors in the control unit; parameter plausibility	Move on to Step	1. Error detected in the control unit	1. Continue following the instructions in the diagnostic table
		Move on to Step	2. Parameters not plausible	2. Continue following the instructions in the diagnostic table
2	FUEL PUMP ACTIVATE DIAGNOSIS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Carry out the active diagnosis of the fuel pump and check that it is working properly	Move on to Step	Pump not working	Move on to Step
3	PETROL PUMP ELECTRIC CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check petrol pump supply and earth (Wiring Diagram ) E5030 PETROL ENGINE ELECTRONIC MANAGEMENT	Move on to Step	1. Connections not correct	1. Repair the connections (Wiring Diagram ) E5030 PETROL ENGINE ELECTRONIC MANAGEMENT
		Move on to Step	2. Pump faulty	2. Replace the petrol pump See in Op. 1040A70 SUBMERGED PUMP ASSEMBLY complete with level gauge - R.R.
4	SUPPLY PRESSURE CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fuel pressure is correct See in Op. 0510C10 FUEL SYSTEM - Check DELIVERY PRESSURE	Move on to Step	1. Pressure not correct: front pipe obstructed	1. Eliminate the obstructions. If necesssary, replace the pipe
		Move on to Step	2. Pressure not correct: fuel pump assembly faulty	2. Replace the pump assembly See in Op. 1040A70 SUBMERGED PUMP ASSEMBLY complete with level gauge - R.R.
5	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present		Fault persists control unit defective	Replace the engine management control unit See in Op. 1056B82 Injection/ignition system CONTROL UNIT (one) - R.R.

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Parts & tools for this job For 2002 Lancia Thesis

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