fuel pump pressure

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rockwild

01-14-2005, 05:43 PM

What would cause the fuel pump to push 40 psi instead of 58-64psi 94 blazer 4.3 cpi

ricksza

01-15-2005, 10:52 PM

Bad fuel pump, high resistance on electrical connections to pump, restriction in fuel lines (possible clogged fuel filter), or bad fuel pressure regulator.

rlith

01-16-2005, 10:25 AM

Most likely though the pump is plum worn out though..

BlazerLT

01-16-2005, 04:17 PM

Or insufficient current and voltage from the battery.

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