Diesel Forum - TheDieselStop.com - View Single Post - after market fuel tank selector valves
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post #6 of (permalink) Old 04-15-2019, 04:18 AM
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Join Date: Aug 2016
Location: Indiana
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I never had that issue. Are you sure you are matching them up exactly?
However - it may be the particular brand of valve...?
The individual tank "send" and "return" lines must be matched from the front of the valve - to the back of the valve. There should be 4 ports / lines on the back of the valve and 2 ports / lines on the front.

The 2 on the front go to the motor (fuel pump and return - not sure of which is which...)

From my memory - I can't remember which of the 4 ports goes to which line on the back - (front tank suction and return - - back tank suction and return.

2 each - Stock - 97 F-350 7.3 PS 1 ton Duallys - RWD - AT

Last edited by Audiowriter; 04-15-2019 at 04:30 AM.
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