Electric fan comes on too often
- Make
- Fiat
- Model
- Multipla Factory Service Manual
- Year
- 1998–2010
- Section
- Engine › Electric fan comes on too often
Fault diagnosisElectric fan comes on too often
ELECTRIC FAN COMES ON TOO OFTEN
The cooling fan comes on at a higher rate than normal (taking into account environmental and driving conditions)
| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
Preliminarily check:
| Continue to Step 1 | Insufficient engine coolant level | Top up the engine coolant level If the defect persists, See table X10 | |
| Radiator dirty, damaged or deformed | Clean the radiator. If necessary, replace it Op. 1088B24 | |||
| 1 | CHECK ENGINE OIL LEVEL | All OK | Problems met | Operation |
| Check engine oil level | Continue to Step 2 | Engine oil level too low | Top up the engine oil level Op. 1084A10 | |
| 2 | CHECK FUEL FILLER CAP | All OK | Problems met | Operation |
| Check the condition of the expansion tank, and the cap seal in particular | Continue to Step 3 | Cap faulty | Repair or replace the capOp. 1088A10 | |
| 3 | TEMPERATURE GAUGE OPERATION CHECK | All OK | Problems met | Operation |
| Connect the diagnostic equipment (Examiner or other instruments) to the diagnostic socket (in the engine management control unit ambient): read the engine temperature value shown amongst the parameters and compare it with the instrument reading | Continue to Step 4 | Values do not agree, instrument reading faulty | See table K26 | |
| 4 | CHECK COOLANT TEMPERATURE SENSOR | All OK | Problems met | Operation |
| 1.6 16v | Check that the engine coolant temperature sensor is working: See Test 1056C Checking engine coolant temperature sensor operation | Continue to Step 5 | Sensor faulty | Replace temperature sensor Op. 1056B50 |
| Connections not correct | Restore the connections ( See E5030 PETROL ENGINE ELECTRONIC MANAGEMENT) | |||
| Engine management control unit faulty | Carry out a thorough check on the control unit (using diagnostic equipment - Examiner or other instruments) and, if necessary, replace the engine control unit Op. 1056B82 | |||
| 1.9 JTD 8V | Check that the engine coolant temperature sensor is working: See Test 1060E Checking engine coolant temperature sensor operation | Continue to Step 5 | Sensor faulty | Replace temperature sensor Op. 1060G14 |
| Connections not correct | Restore the connections ( See E5050 DIESEL ENGINES ELECTRONIC MANAGEMENT) | |||
| Engine management control unit faulty | Carry out a thorough check on the control unit (using diagnostic equipment - Examiner or other instruments) and, if necessary, replace the engine control unit Op. 1060G80 | |||
| 5 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Search for the fault starting from another symptom' | |
Parts & tools for this job For 1998 Fiat Multipla
- PARTEngine gasket setSearch: Fiat Multipla 1998 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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