Engine coolant overheating signalled by the instrument / without visible vapour venting

Make: Fiat
Model: Ulysse Factory Service Manual
Year: 2002–2010
Section: Engine › Engine coolant overheating signalled by the instrument / without visible vapour venting

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Fault diagnosisEngine coolant overheating signalled by the instrument / without visible vapour venting

ENGINE COOLANT OVERHEATING SIGNALLED BY THE INSTRUMENT / WITHOUT VISIBLE VAPOUR VENTING

2.0 16V JTD, 2.2 16V JTD

STEP	OPERATIONS TO BE CARRIED OUT	TEST RESULTS
0	PRELIMINARY CHECKS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	First, check: the level of the coolant fluid that there are no localized leaks that there is no engine oil in the expansion tank that the cooling radiator is not distorted or faulty that the radiator is not dirty/blocked	Move on to Step	1. Level not correct	1. Top up level
			2. Leaks detected	2. Move on to the step involved
			3. Presence of engine oil	3. Change the head gasket
			4. Radiator distorted	4. Replace the radiator
			5. Radiator dirty/blocked	5. Clean/wash the radiator
1	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket and check: that there are no faulty control units in the CAN	Move on to Step	Control unit(s) with errors	Carry out the specific control unit error test and continue following the instructions for the diagnostic equipment
2	CHECK USING DIAGNOSTIC EQUIPMENT	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Keeping the diagnostic test equipment (Examiner or other instruments) conected to the diagnostic socket: Carry out the active diagnosis of the fan Check the fan operating cycle	Move on to Step	Operation does not conform	Move on to Step
3	ENGINE COOLING ELECTRIC CIRCUIT CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check tha the fan power/control line is working properly See E5020 ENGINE COOLING	Move on to Step	Connections not correct	Repair the connections See E5020 ENGINE COOLING
4	FAN OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Supply the fan directly and check its operation See E5020 ENGINE COOLING	Move on to Step	Fan not working	Replace the fan
5	COOLANT TEMPERATURE SENSOR CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the sensor is working properly	Move on to Step	Sensor faulty	Replace the sensor
6	THERMOSTAT OPERATION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Bleed the cooling systemCheck that the thermostat is working properly	Move on to Step	Thermostat not working	Replace the thermostat Op. 1088C30 THERMOSTAT UNIT - R+R
7	WATER PUMP CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the water pump is working properly	Move on to Step	Pump faulty	Change pump Op. 1088C10 WATER PUMP - R + R
8	COOLING SYSTEM LEAKAGE TEST	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the seal of the cooling system	Move on to Step	1. Faulty seal with visible leaks	1. Eliminate leaks
	Check the seal of the cooling system	Move on to Step	2. Faulty seal without visible leaks	Move on to Step
9	HEAD HYDRAULIC SEAL CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the hydraulic seal of the cylinder head	Move on to Step	Seal not efficient	Restore the seal, replace the head if necessary
10	MONOBLOC HYDRAULIC SEAL CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the hydraulic seal of the monobloc	Move on to Step	Seal not efficient	Restore the seal, replace the monobloc if necessary
11	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present

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Parts & tools for this job Staging For 2002 Fiat Ulysse

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