Strange Coolant issues

[Talon62]

So latly my 2004 Grand Prix GTP(competition group) has been over heating everytime i go anywhere. I open up the hood and the coolant is all gone or there is little left. I will wait for it to cool down then add more then go home and by the time i get home all of the coolant is gone again. This has been happening for some time now and i have no idea what is wrong with it. I checked the tubes and the bottle to see if there were leaks and there were not any. Also when I leave the car in the driveway for 6 hours after filling it up with coolant again it is almost all gone when I come back out. I think it is something within the engine but what could it be? I need help soon.

[Fivefingerdeathpunch]

A guess would be intake manifold gasket are shot and causing the coolant to go away and letting air into the system and making it over heat and lose coolant.

[Talon62]

It was the lower manifold gaskets. Thank you are sorry this took awhile. I didn't have any money to fix it so my car has been sitting in the drive way since November till now.

[thegipper]

Talon62

I hope you changed your oil after all of this. Most likely you were dumping coolant into your oil and that is not a good thing. If you don't get all of the coolant out of your oil, you will destroy your motor.

Just a heads up !