Sure, but with your situation it is now more than prudent to try an old
one back in to make sure you really know what is happening. You have
already assumed that something is killing the coils but you haven't
actually verified that any of them are really dead.

Mark

Bruce Todd wrote:
> No Mark - 3 of them have been recycled - except for the last one.
> Something to experiment with for sure.  However every new coil installed
> has got the van working instantly again.  Every old coil could not get
> the van started.
>
> BT
>
> On Sun, Aug 16, 2015 at 5:53 PM, vw_van_fan_Mark <madvws@cox.net
> <mailto:madvws@cox.net>> wrote:
>
>     Have you tried putting any of the "bad" coils back in to see if they
>     are still bad?
>
>     Mark
>
>
>
>
>     Bruce Todd wrote:
>
>         Yeah Jack that is what makes me wonder - (old coil  - no
>         problems)...or
>         whether the new coils are not up to par.  Good advice on the
>         ground wires
>         which I have done some work with over the years...but i don't
>         think bad
>         grounds would kill a coil.  Yesterday after installing the new
>         coil the van
>         fired up right away...a bad ground or a wiring issue would not
>         permit that
>         to happen.
>
>         I need to have an autopsy completed on the coil - not sure
>         whether I could
>         trust Bosch to do that and provide honest feedback.
>
>         BT
>
>