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Full Version: ISX FUEL PROBLEM
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So I have a 2013 Peterbilt 386. Having fuel issues. Fuel in the passenger side tank will not level out! I’ve put new breathers, new fuel caps, new fuel lines and still having the same issue.
Seems like some of the return is still going in there because the level slowly rises but will not go down! Not sure what else to check. Can someone help pls?
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