91 S-10 Fuel Problem

[ghbray]

my 91-s10 2.8 v-6 manual trans seems to have a fuel problem. fuel filter and throttle position sensor replaced. no help truck still idles rough and surges when driving, though sometimes runs ok at speed.

[nbscanuck]

sounds like fuel pump. i had to replace mine on the old truck a couple times when i owned it.

[Wolf991]

Sounds like a fuel pressure regulator

[Alljackedup408]

could be either.. if the pump is getting weak it wont deliver enough fuel pressure.