re :
> However when they are installed in van the fuel pump does not receive
> >current to actuate.
If the poster really means 'does not receive current' ...
then the ground has nothing to do with it.

As others have noted , fuel pump ground is usually to a screw in the
frame near the fuel pump.
You can ground the negative terminal of the fuel pump anywhere you want
- run a wire to the engine if you want, or whatever, just so it's a good
solid ground.

and if juice is not getting to the pump in the first place, the ground
is not the problem, if that's what was actually meant.