92 grand prix fan

[picture09]

I have a 92 grand prix that is losing water somewhere, I have replaced the water pump and also have put 3 different themostats on it. It take the themostat very long time to open. It has 2 fans and only one seems to be working.Could the fan be my problem? It had water in the oil so i changed the oil and all seems ok there now, but I am still losing water. The temperture gage goes back and forth it will get real hot and then go back to normal. Any ideas anyone.

[nscrfn]

could be a bad head gasket possibly.

[Tech_n]

Check this out
I believe it could be either the radiator or the fan
Most likely it could be the fan, let me ask you something. When you car is getting hot, are both of the fans spinning? Let me know whats going on because that will help a whole lot