I am having a few issues that I am hoping someone will be able to clear up for me.
1. I am getting a squeal when I rev the engine from cold
2. Whilst driving home today the battery warning light flickered on and off
3. Measured voltage at battery was 12.4V after I revved the engine for 5 secs the voltage at the battery was between 15.5 and 16.8 with no dash light



Thank you in advance for all your help
Richie