Cycling on and off is caused by some electrical problem.  Perhaps the fuel
pump relay, more likely a poor electrical connection interupting power to
the ECU causing it to restart repeatedly.  Do you have a spare ignition
switch?

Larry A.

On Sun, Sep 22, 2013 at 9:01 PM, ROB WILKE <rwilke@robwilke.com> wrote:

> I have an 86 weekender with an auto tranny and it is suddenly not
> running very well.
>
> Here is the list of symptoms..
>
> Fuel pump is very loud. ( i have replaced it and the prefilter)
>
> After driving for a bit and it's warmed up my engine acts like it's
> starved for fuel and dies..
>
> One time when this happened and i had pulled over to investigate I
> noticed the pump was cycling on and off..
>
> Any help would be appreciated
>
> Thanks
>
> Rob=
>