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fuel draw from one side

My friend has an International 9400I and the fuel just started drawing from only the passenger side tank. we can not find a shut off for the tank and this problem just started over the weekend. any help would be appreciated.

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thanks we will check both suggestions

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5 Answers

Check the control valve on top of the transmission, it is probably leaking fuel. Common problem.

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I encountered a similar problem a few months ago. The suction on my drivers tank was blocked by debris. therefore only suction occurred on the pass side and return fuel went to drivers side. Drained my pass. tank until the return line was blocked to the drivers side as a temp fix. Once debris was removed from drivers suction tube, equal suction began again.

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I have a 1999 KW900-N14 Cummins engine; had my fuel lines completely replaced in December 2011 at KW in Jackson, TN;

After 5 dealerships and 1 independent shop; I took it to E&R Services in Lincoln, NE; Eldons' specialty is fuel systems: "He told me it looked like a plumbers nightmare"

They installed the lines incorrectly, causing a draw on only one tank, including back pressure on my engine. Eldon took 2 days; but reran the line correctly, took out many additional fittings that either were incorrect or were not needed. The truck now runs off 2 tanks and have had no other issues with it; this is after 8 months of %@&& and about $8,000

later; dealing with Kenworth dealerships; who are supposed to know what they are doing.

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I ran a guys fld that did that, ended up the vent line on the drivers side tank was plugged up with a mudwasp nest. when I would open the fuel cap on the drivers side, the passenger tank would start to fill back up

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2012 prostar, fuel goes from passenger tank to driver tank and overflows, all while driving bringing needle down to Empty, then i stop shut truck down the fuel goes back to passenger side tank, please help

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fr8thlr will be eternally grateful.
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