Hi Donnie, yes a bad water valve is a very common problem in all washers no matter the brand or when they were made.
What I would do is remove the valve from the washer and take it to any good appliance parts store so they can match up a generic version of the valve. The original most likely will not be available, but a generic will work just as well.
It's very easy to remove a Frigidaire water valve.
1. Pull the machine out and unplug it and remove the two fill hoses.
2. Remove the screw from the water valve mounting bracket, then pull the bracket out from the bottom. It's probably hinged on the top with metal posts that pull out.
3. Remove the wires, since there are two sets of wires and they have to go back together in with the same set you might want to tape each of the two sets together so you remember which is which.
4. Remove the inlet hose clamp and hose.
5. Remove the screws that attach the valve to the bracket.
Replace in the reverse order. If the holes in the new valve don't line up exactly in the bracket that is OK, you might have to retrofit it slightly, I do this all the time.
These pictures might help...
