I was driving the '88 240 the other day when the engine just quit while under acceleration. I was pulling away from a stop sign and when I pressed the gas it just died immediately. When I got over to the side of the road I tried to start it again, but couldn't hear the main fuel pump running. I waited a couple of minutes and cranked it over. This time I could hear the main pump after each crank and the car started back up. I made it home without it stopping again. I can also hear the intank pump running through the filler cap. Maybe it needs a fuel filter? I have never heard of a main fuel pump failing in this way (where it works only sometimes). The PO of this car also said that it did the same thing to him once.

Thanks in advance.
Dave