Engine rumbling
- Make
- Fiat
- Model
- Doblò Factory Service Manual
- Year
- 2000–2010
- Section
- Noisy / vibrations › Engine rumbling
Fault diagnosisEngine rumbling
ENGINE RUMBLING
There is a constant, low intensity noise, only noticeable for short periods of time
| Results of the tests | ||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|---|---|---|---|
| 1.2 8v | Carry out a road test to check the conditions which give rise to the noise | Continue to Step 3 | The noise also occurs with the engine switched off (when warm) | Continue to Step 1 |
| The noise also occurs with the engine switched off (when warm) | Continue to Step 2 | |||
| 1.9 DIESEL | Carry out a road test to check the conditions which give rise to the noise | Continue to Step 3 | The noise occurs when braking | Continue to Step 2 |
| 1 | MULTI-PURPOSE VALVE CHECK | All OK | Problems met | Operation |
| 1.2 8v | Check the condition of the multi-purpose valve, located on the fuel supply pipe | Continue to Step 2 | Multi purpose valve faulty | Replace the fuel filler pipe Op. 1040A31 |
| 2 | BRAKE SERVO VACUUM VALVE CHECK | All OK | Problems met | Operation |
| Check the condition of the one-way valve on the brake servo vacuum pipe | Continue to Step 3 | Brake servo valve faulty | Replace the valve Op. 3330D20 | |
| 3 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
| Check that the fault is no longer present | Fault persists | Search for the fault starting from another symptom' | ||
Parts & tools for this job For 2000 Fiat Doblò
- PARTEngine gasket setSearch: Fiat Doblò 2000 engine gasket set
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLFeeler gauge setSearch: feeler gauge set
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