fuel pump
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Joined: Jul 2002
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From: Clifton co
fuel pump
On the fuel punp comeing out of the top there are two lines on the left that go around the fuel neck and and go to the right and one on the right going to the left. What one is the pressure return and the feed. Need to clamp them off to find if the diaphram on the rail is holding or the back pressure valve on the pump is bad.
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Joined: Dec 2000
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From: SE NY
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Re: fuel pump (insanegt1)
My '88 Vette GM Shop Manual shows the one closest to the rear as the fuel return hose and the front one as the fuel feed hose.
The single line that goes to the left is the vapor hose.
The single line that goes to the left is the vapor hose.
