I would suspect a bad diode or voltage regulator in the alternator.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Jim Felder
Sent: Sunday, August 31, 2008 10:37 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Strobe lights on my vanagon--why?

My 90 carat has developed an unwanted feature. When the engine is
running the lights in the car--all of them, dash, tail, headlights,
interior lights--pulse several times a second. It's barely noticeable,
but it's there.

Is this a sign that the alternator is going? The pulsing stays the
same no matter the RPM, as far as I can tell.

Thanks for any advice.

Jim