1994 Buick Century, 3.1 V6 Problems!
#31
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See, this whole time it could be electrical. I don't hear the fuel pump engaging AT ALL. I know what it sounds like but I just don't hear it, even if I have my head underneath the vehicle and turn the key.
My next test is to check line pressure before the fuel filter using a special T fitting with the kit and check for electrical. I've already switched relays with the blower fan, so it'* not a relay.. could be a fuse inside.
Be back.
My next test is to check line pressure before the fuel filter using a special T fitting with the kit and check for electrical. I've already switched relays with the blower fan, so it'* not a relay.. could be a fuse inside.
Be back.
#33
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Isn't 23 PSI a tad low? Even our 3.8'* need around 40.
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#34
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Swapped relays in engine bay, no change in pressure. Checked wire harness near gas tank looks fine.
I'm guessing weak fuel pump or clogged lines before filter.
I'm guessing weak fuel pump or clogged lines before filter.
#36
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The FPR is probably still stuck in at the idle position, allowing most of the fuel to return to the tank. When load/RPM increases, the FPR is suppose to restrict the fuel going back to the tank.
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#38
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I guess I'm late to the thread, but I wonder if it was the check valve in the fuel pump. I had the same issues with my '94 Buick and ended up putting in an inline check valve and solved the fuel pressure issue.
#39
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