Jaguar Repair: fuel tank switching valve, return valves, fuel tank

Question
I recently replaced the fuel tank switching valve with a new one, but I cannot seem to get it to switch tanks.  The switch is working because the return valves are opening, so I may either have it hooked up incorrectly or it is a bad valve.  Could you please remind me which way the hoses reconnect to the switch?  I think I have them correct, but I thought I wold make sure.  Any trouble shooting ideas?  Please let me know.  Thanks.

Answer
Hi Bill,
As for connecting it up wrong. The only thing you could do is turn it around since the two lines from the tanks are very stiff and will only go on the two ports that are in line with each other. If you were to hold it up as a "T" the fuel lines go on the two top arms of the "T" and the fuel pump goes on the bottom of the "T". That only leaves the possibility of turning it around. When the power if OFF of the valve, it should have a clear open connection between the pump and the LEFT tank. A preliminary test of the switching valve is to turn on the ignition and set the switch to the RIGHT tank and unplug the POWER wire to the valve. This only tells you the solenoid is working but will not tell you if you turned it around. Make temporary contact several times with the POWER wire and you should hear the valve click each time.
The system is designed so that no matter what item fails in the switching system of the three valves it will always run on the left tank. It takes power to all three valves to make it run on the right tank and not transfer fuel to the wrong tank. No matter which valve fails you can operate off of the LEFT tank.
Let me know,
Howard