poor ground connections pop to mind.
there's a notorious one ...
a 'crown' thing ...above the fuse box and to the left, way up in there.
Has about 8 to 10 push on spade connectors, all with brown ground wires on
them.

they are commonly corroded and weak from age and heat.

also the contact at the main instrument cluster connector, T14 in the wiring
diagrams.

- might get you started on fixing it.

Scott
www.turbovans.com

----- Original Message -----
From: "Jay lefstein" <jleftbrane@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, June 14, 2010 4:33 PM
Subject: HELP ;)

> anyone out there good with electric problems?
>
> when i turn my head lights on my tack drops , the coolant light
> flash's, temp drops etc
>
> anyone have a good suggestion?
>
> i have pulled out the fuse's 1 by 1 and tried to see if anything
> changes.
>
> #5 seems to have some very slight effect but very minimal.
>
> Help please
>
> thanks
> J