Interference noises due to alternator
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
RADIO SYSTEM DIAGNOSIS FOR INTERFERENCE NOISES DUE TO ALTERNATOR
| Work instruction |
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| 1 |
- Connect a plug connection to the alternator.
- Start engine.
- Minimise the volume at the radio.
- Switch on high loads and change the engine speed with brief accelerations.
Are the interference noises still present? |
- Check the connections of the battery. Make sure that all connections are seated properly, are tightened and are not corroded.
- Ground connection of the engine, the alternator and the battery negative terminal and measure with the ohmmeter.
- Make sure that all ground connections are fully tightened and clean.
- Check the connections of the alternator.
If necessary: clean and repair the connections and, if necessary, install a condenser End |
End |