Have you checked/cleaned/doubled up your grounds?  They're an important part
of the current path.

On Wed, May 12, 2010 at 9:41 AM, craig cowan <phishman068@gmail.com> wrote:

> SO,
> I have a mystery set of electrical issues.
> My battery keeps testing good. It has 650CCA and holds 12.6volts, only
> going
> down to about 11.5 on cranking.
> My alternator (Bostig ZETEC) is a 110amp alternator and is testing at
> 13.2Volts and 75amps (at the battery) which is low bus supposedly within a
> reasonable level of what it should be.
>
> Symptoms:
> If the car sits for any period of time, even an hour, it will barely crank
> over. Very Labored. Once it finally catches it runs great. If i drive it
> for
> more then 10 minutes, it will put enough of a charge into it that if i shut
> it down and restart it pretty promptly, it fires right up. The longer it
> sits, the more it sounds like it won't start. Jumping it, even just off a
> second battery always makes it spin super fast and fire right up. So to me
> this tells me either my battery is not getting charged well, or not holding
> a charge at all.
> Since the battery is testing good..... do you think it's the alternator?
>
> I'm running out of ideas/methods to test.
> Any suggestions would be appreciated.
>
> -Craig
> '85GL turned WESTY
> BOSTIG in the back.
>

--
Jake

1984 Vanagon GL 1.9 WBX 'The Grey Van'
1986 Westy Weekender/2.5 SOHC Suby 'Dixie'

Crescent Beach, BC

www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27