986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - What's the typical Boxster voltage while driving?

Dale_K · 07-09-2011, 07:26 AM

Thank you. I replaced the alternator with a remanufactured unit from O'Reilly and I'm pretty sure it's going to totally fix my charging problems. The voltage while running is now 14.3-14.4 and remains steady while driving. Before it used to drop off after a while and the battery would get weaker over time.

I've been pissing around with this issue for a couple of months. The old alternator was barely good enough to make the diagnosis confusing. O'Reilly put their tester on the car and told me the charging system passed but I got a replacement alternator anyway. The only trouble was I forgot to plug on the small wire and had to take out the alternator a second time. I'm actually pretty good at it now, lol.

Thanks again.

07-09-2011, 07:26 AM	#3
Dale_K Registered User Join Date: Dec 2010 Location: Hot Springs Village, Arkansas Posts: 245	Thank you. I replaced the alternator with a remanufactured unit from O'Reilly and I'm pretty sure it's going to totally fix my charging problems. The voltage while running is now 14.3-14.4 and remains steady while driving. Before it used to drop off after a while and the battery would get weaker over time. I've been pissing around with this issue for a couple of months. The old alternator was barely good enough to make the diagnosis confusing. O'Reilly put their tester on the car and told me the charging system passed but I got a replacement alternator anyway. The only trouble was I forgot to plug on the small wire and had to take out the alternator a second time. I'm actually pretty good at it now, lol. Thanks again.