How do you remove a 1999 Suburban fuel tank?

Answer 1

On my suburban,I had a faulty fuel gauge, so I had no idea how much gas was in the tank. found out that it was half full.first I disconnected the battery cables.for safety reasons,then put jack under the tank. before you began you must have a fuel line wrench to remove the fuel line at the tank.remove tank straps on my truck there was a plastic liner over tank. Now, disconnect the fill tube and vent tube that are connected to your diesel/gas fill cap from the two rubber hoses that attach to the top of the tank. A 5/6 socket and ratchet and a ratcheting wrench may both be needed (beats me how they were installed). Now, look for the cable that connects to the fuel level sender. In my case (1998 diesel) the connector was midway on the tops ide of the rear axle beam. If you wear a headlamp, disconnecting is easy (I suspect anyway as I did it without and could not see). The rubber fuel line hoses have connectors at both ends but these are like kind of rusty. In my case I am replacing the steel lines in the side rail to a point where I can service the corrosion prone steel lines, so I just cut the rubber fuel lines, making one longer than the other so I can tell return from supply later. As you lower the tank (empty is recommended!) you'll need to tilt the side opposite the fill downward and sort of slide it past the exhaust... a pry bar may be needed gently to loosen the tank from under the floor, but should not take much. I'll be removing rust and using rust reformer, priumer and underc oater to dress this thing up before it goes back in. is removed that,you may have to pry tank loose.very carefully,when it loosens, began lowering tank enough to get your hands on the top side to remove pump electrical plugs (like Isaid, see if you can disconnect by the axle), then carefully use fuel line wrench to remove both lines from tank,then remove return hoses.you will not have much room to work so you may have to do this with one hand, I did!! In addition to the tank removal, I needed to replace my fuel pump,I don't recommend this but it saved me from taking the tank down again,for pump removal,I cut a rectangle hole in the rear body of my truck over the fuel tank and put a sheet metal door there. now I can replace the pump without lowering that tank, also had bad wire connectors on the fuel pump,purchased 2 pumps before finding out the connectors were bad,Fixed it by wiring direct to pump.no more problems.Again dont try this without proper knowledge.I had to use caution when cutting the body, there are lines running below.it had to be measured to the tee!!