overheating, need help asap

92 grand am 3.3L

Been overheating so i replaced thermostat,waterpump,head gaskets,intake gaskets
Pretty much everything... Heater core went out so i bypassed it.
That seemed to work for a few days, now back to overheating after I drive for 15min.
Really getting aggravating! Anyone have any ideas or any help?
Thermostat is a failsafe, 192degree. If that helps any.

Did you have the heads checked for cracks or warping?

No i didn't. They looked fine.

But I know my eyes can't judge that.

Don't forget to proprelly bleed the air out of the system, it is said to be a real PITA to do. Also, be sure that you use the proper mix of anti-freeze and that there is no leak. The system need to build pressure to not boil. Also, water have a too low boiling point and might not work. Also be sure that the cooling fans turn on, and that there is no airflow restriction (leaf, plastic bag, ...) on the radiator.

After spending $120 on antifreeze and it just being leaked out
In the driveway and wherever I drive. I have not put antifreeze in.
Been using water. I know I know it boils at 212. But my car shouldn't
Even get that hot. No air restrictions. Leaks, have all been fixed.
Had a crack on the Rad. But i put epoxy on it. Doesn't leak now.

As for the PITA on bleeding air, I completely agree.
Is there a certain way i need to do this so I can be sure
All air is out of system??????

Some said that parking the car in a basement garage entry helped... the front being rised alot force the air to get out of the bents.

And water will boil.

Is there a thermostat housing with a bleeder valve
I can take from another car and it will bolt to mine?

Don't forget the radiator cap!!!!!!!!!!

Had a car that came in with intake gaskets replaced on a 3.1, because of a boil over....still did it after the job was done at another garage.....checked radiator cap, and that was the problem....

I've replaced the cap already.
Well I put the car on a curb and to my surprise it
Burped a lot of air out. So far I can see an improvement.

See what I was meaning by a pita to bleed completly... and why the incline of the underground garage help... raise alot the front, it force the air out...