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Can we start with the last 8 digits of the vin number please?
sure its 6j221687
Sorry for mixing up sides of the tanks - to be clear - system is not transfering enough fuel from passenger side tank to driver side
does the fuel transfer pump have only 2 wires going to it?
I would check and clean the connections at both tank sensor connectors ! Sounds like your storage tank sensor is working intermittently and should be replaced ! I am going by what you mentionned ( the fuel gauge at empty, the left side emptyand right side half full) . The body controller reads the level in the left side (draw tank ) and displays it on the fuel gauge in the cluster , so that all seems to be working fine ! However , the body controller is not reading the right side ( storage tank ) level properly because at 50 % level , and the other side at about 10 % , the body controller would definitely be turning on that pump to transfer fuel and try to level off both sides within 10 % of each other and maintain that . That is its function is to keep both tanks close to the same as the engine draws from the left side.
I work for an International dealer and can tell you with 95 % certainty that it will be your right side storage tank sensor that is causing your trouble as we replace fuel level sensors quite often at work when we get complaints of fuel not leveling!
Hope this resolves your problem !
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No problem ! Just ask for Andy ! Thank you very much !