If you experience any of these symptoms, it’s essential to have your vehicle inspected by a qualified mechanic. They can diagnose the problem accurately and determine if the purge valve needs to be replaced. Want to know more about the symptoms of a bad purge valve, let’s watch this vid...
When you ground the tab the motor should idle down as it comes under load, so you shouldn't even have to look at your voltmeter to see if bypassing the regulator made the alternator charge. It's nice to do this test because there's no good "do it yourself" way to test the regulato...