Ok heres what you do, first take the gas cap of to releave the presure. There will be three little srcews inside the gas cap door around the gas cap, this will losen the fill hose to the tank. Next unbolt the straps that old the gas tank up (this is easest done if the tank is empty or close) use a jck to hold the tank up so it does not fall. Once you have the straps off let the tank down just enough to undo the fuel pump lines and wires. this is easier said that done if you are doing this on the ground. Once you have the lines and wires of the fuel pump you can remove the tank.
Possible Fuel SuggestionsYes, it could be the fuel pump, the fuel filter, and/or any other gas related parts. I have a 2002 Yukon XL and it stalls when I run at a high speed (like on an interstate). I've been told its my gas cap not venting properly so my fuel pump isn't getting enough gas.
The line is probably clogged. Wax, dirt and other build-up can often clog the very tiny opening where the fluid comes out. Try using a small needle to clear the holes. Most commonly would be the washer pump which pumps the fluid. Also, the wiper switch could be bad but it's less likely.
If you're certain the bulbs and sockets are good, check the light wiring under the vehicle. There are a couple plugs that may be corroded if moisture was able to get in. If that's not the problem, it could be the turn signal switch on the dashboard.