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#5 |
Registered User
Join Date: Oct 2009
Location: .
Posts: 2,180
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Re: 03 Yukon 2500 8.1ltr fuel pump
The filler neck goes to the rear tank. Then there is a big filler tube between the rear tank and the front tank. There is also a pump in the rear tank that will pump fuel into the front tank. The rear tank is used like a transfer tank. The computer looks at the fuel levels in each tank and it will decide when the rear fuel pump runs. It will also send a signal for the fuel gauge.
All 2500 suburbans from 00-07 have 2 tanks. |
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