Jim Dunmyer wrote:

> Charlie,
> Actually, most Diesel-powered vehicles DO have vacuum available,but it comes
> from a vacuum pump, not the manifold. A vacuum source is necessaryfor the brake
> booster, and often for the A/C & heater controls. Even my VWRabbit Diesels had a
> vacuum pump.
>

<<snip>>

It has been this dealerships experience that too often there is no pump,or if there
is one it is of inadequate capacity. Fortunately we haven't had totest one as most
convert to electrics.

Charlie