If stuffs going all the way on and off I agree with others that the grounds
are a likely culprit.

Another trouble part is the little voltage stabilizer on the circuit board
on the back of the dash.  It's easy to replace and not too expensive.  It
sends a constant 5volts to the instruments, and when it goes bad the voltage
gets all out of whack.  Don't see how you could test it without replacing
though.

On Mon, Jun 14, 2010 at 8:01 PM, Jay lefstein <jleftbrane@gmail.com> wrote:

> Sorry guys
> It's a 1984 full westy ,with 65,000 kms on a  bostig coversion
> Jay brown headlight relays
> Cluster is from californian 1991 ..
> I am out picking up the GF, but Snagged a visual of the ground spiders
> up under the dash and no corrosion to be seen, when i get back i'll
> take them off anyways and check them more hands on
> Thank you,
> Jay Lefstein.
> Sent from my mobile device.
>
>
> On Jun 14, 2010, at 4:47 PM, David Beierl <dbeierl@attglobal.net> wrote:
>
>  At 07:33 PM 6/14/2010, Jay lefstein wrote:
>>
>>> when i turn my head lights on my tack drops , the coolant light
>>> flash's, temp drops etc
>>>
>>
>> And you're driving a what exactly please?
>>
>> Yrs,
>> David
>>
>