Corrosion at the fuel tank to body harness may cause the Check Engine Light to illuminate or a crank no start condition. This corrosion issue is most commonly caused by a water leak inside the vehicle. Any damaged wiring or connectors will require replacement.
Corrosion of the Fuel Tank Harness Due to Water Leak on Chevrolet Uplander
Average mileage: 133,074 (52,000–222,222)
11 people reported this problem
2007 Chevrolet Uplander 120,000 mi, Visitor
main wire harness runs under driver's seat and plugs into the floor in front of rear seat. The connection inside the van and underneath connectors are corroded. THERE IS A SMALL PLATE COVERING THE INSIDE CONNECIION. This is an easy removal. simply drill out two rivets and the plate comes off. Finding a non-corroded connection in a junk yard is difficult.
2005 Chevrolet Uplander 189,296 mi, Visitor
Mine feul tank can not get under a fourth of tank or my will run out gas! So strange it visibly clear i have gas in the tank but it still will run out gas with out being close to E! Dont let me be on a hill! It wont starte either!
I was told is a harness or something in my gas tank...it clearly says I have a quarter tank....but it's out of gas
2005 Chevrolet Uplander 222,222 mi, Visitor
Corrosion on the wire harness to the fuel pump where can I buy the part