when you have two tanks on your vehicle the fuel tank selector valve chooses what tank will send fuel to the engine. both tanks run into the valve
The fuel tank selector valve on a 1993 Ford F150 with a 4.9L engine is on the left side frame rail under the driver side floor pan forward of the side fuel tank in-line on the fuel lines. Follow the fuel lines from the side tank forward until you see the selector valve. The valve will have at least three fuel lines and one electric plug with wires plugged into it.
inside the in tank fuel pump.
you most likely damaged or destroyed the rubber gasket in the selector valve. Get the make/model and go down to your local pool store and buy a replacement. The gasket is glued to the selector valve and only held down by spring pressure when the top part is properly seated. If you lift the selector with pump pressure applied to the system it will usually dislodge all or part of the gasket and the selector will no longer seal properly.
What is the question? Questions typically start with Who, What, Where When, Why or How... This is a comment... Thanks!
Is there a rocker switch just to the right of the headlight switch ?
Underneath Driver side Cab as it meets the bed and it looks like this
It is bolted with 2 10mm bolts to the chasis underneathe the drivers side. The only tank selector is in the switch on the dash. It transfer power to each tank to activate the electric fuel pumps for each tank
my cluch is lost pressure and the geare doest notwork even i have change the valve onbelow
Attached to the frame on the driver side just about under where the driver would sit.
datasheet selector
The traditional three port fuel selector valve is designed to allow the operator to switch between two fuel tanks, without having to switch the supply hose from one tank, to the other. Each of the two outboard, (outside) ports, go to your fuel tanks. The middle port is the outlet to your engine.