Fuel filter perhaps?

On Sat, 13 Feb 1999, Tom Perkins wrote:

> Hello fellow listees,
>
>   My baby is acting strange (1987 Vanagon Syncro 130,000miles).  Symptoms
> started last week when driving a two hour drive on the highway, she started
> bogging at speed 40min into the trip (like someone had squeezed the fuel
> line).  I kept on going and so did she but every couple of minutes there would
> be a sudden jerk (/bogg/hesitation...).  When I arrived at my destination I
> drove in the city for 3 days with no problems.  Then it happened again 1 1/2
> hours into my trip back home.  Then, like before once I got off the highway,
> at lower speeds, it didn't happen.  Three days later I drove 2hours back to
> the city and did not have any problems (none of the bogging/hesitation).  Then
> I drove back home and (again) 1 1/2 hrs into the trip it started bogging.  I
> got home and now it is doing it even driving around town.  I have to drive
> back to the city on Monday and am freaking out.  Help!!!!!!
>     At first I thought it was water in the gas but I have filled the tank up 3
> times now since then and it is still happening (now more than ever).  Any
> idea's?  All suggestions much appreciated!!!
> Thanks,
> Tom
> 1987 Syncro
>