Noise gearbox / in a specific gear
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Noisy / vibrations › Noise gearbox / in a specific gear
Fault diagnosisNoise gearbox / in a specific gear
NOISE GEARBOX / IN A SPECIFIC GEAR
Whilst driving, there is a cyclical or whistling noise in a specific gear. This noise decreases or disappears on changing gear
| Results of the tests | ||||
| 1 | SPEED GEARS CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| Overhaul the gearbox Op. 2110B20. In particular, check the teeth of the gear concerned: they should not be worn or show signs of seizing | Continue to Step 2 | Gears worn or damaged | Replace the gears involved | |
| 2 | SPEED SLEEVES AND SELECTOR FORKS CHECK | All OK | Problems met | Operation |
| Check the selector forks and the sleeves for the speed concerned: they should not be worn or damaged | Continue to Step 3 | Sleeves or selector forks worn | Replace the components involved | |
| 3 | CORRECT OPERATION CHECK | 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 Alfa Romeo 147
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLSocket setSearch: socket set metric
- BOOKHaynes manualSearch: Haynes manual Alfa Romeo 147
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