I installed a see-through fuel filter on my 77 C-10. I noticed that
at idle, the fuel seems to build up and then drain out and it looks as
if there is nothing coming into the filter; then after a few seconds
there is a surge and it fills about half-way and then drains out again
and it looks like nothing is coming in the filter. It just keeps
cycling like that.
Is that a normal flow at idle? If not could the fuel pump be
I've got dual tanks and I'm thinking maybe the pump is somehow sucking
air along with gas.
The truck idles, but sometimes seems on the virge of cutting out. The
normal idle is supposed to be 500 RPM, for a California 350 smogger,
but it seems low.
Moves OK at speed.