I have a 1988 chev 350 1/2 ton and am having fuel touble.At times when I
shut it off it wont restart, it seems to have no fuel coming. Then if it
sitts a while it works.I have repalced pump and filter, does anyone know
how a fuel regulator works and symtoms when its not..Thanks
I'm assuming you have TBI. One common failure is that one or both of the
injectors leak. This results in 2 issues. 1. The fuel pressure bleeds
off overnight, and B. Fuel pools in the bottom of the intake manifold,
and sometimes trickles down into an intake runner. The symptoms of this
(depending on the severity of the leak) are Hard starting due to
flooding for short term restarts 1-3 hours, and Hard starting due to no
fuel after long term (overnight) restarts. Mid-term restarts usually are
OK. Remove the air cleaner, shut the motor off, and look down the throat
of the throttle body, the injectors are in the center on top. If you see
any drippage an injector is leaking.
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