I will make a it DIY right now have it up tonight. I will post it in this thread for you.

 

The only time it bubble was when i had it lifted up and the air with the coolant funnel. The car would get to normal temp then after a while it will jump up 2 levels and the funnel will start to feel up. So I turn the car off, it start to bubble for about 10 sec. so i let it cool down for 10 min and start the same process over again about 3 times.?
could it be the gauge cluster?

 

thanks for your help again.

 

Go to www.g35mods.com and look in the Engine category I made a DIY for it. hope it works/ helps!

 

thanks for the info.
but i gave up in took it to the dealership and they told me that someone put stop a leak in the car, don't no way they did but they want to start by replacing the water pump and get the radiator cleaned.