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Old 01-25-2013, 07:04 AM   #7
roger 04 rt
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Joined: Nov 2011
Location: Massachusetts
Oddometer: 2,363
I can think of a couple of possibilities.

1. Someone installed the fuel pump plate in the wrong orientation and the back end of the pump is sitting higher than it should be.

2. The evap system is clogged and causing a vacuum in the tank. With less fuel in the tank the vacuum has a more powerful effect on the remaining fuel.
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