Olds cutlass supreme overheating.?

I own a shop, and this is what I think; You have an air lock in the system. Try this; park the vehicle with the front end as high as you can, and allow it to sit over night. Crack the air bleeder, and see if you get air from the system. The idea is to get the radiator cap higher than the rest of the engine. I know this may sound stupid, but it does work. As the engine cools back down the air will go to the highest point, which will either be the bleeder valve, or the cap area. This has been a problem with those types of engines. As for a second bleeder valve, they are talking about the drain plug or pitcock at the bottom of the tank. Some has them, and some doesn't. Have a pressure test done on the system, and the cap too. If you have a leak anywhere, the test will find it. Don't guess at this, just take it in, and have the pressure test done, and this way you will know for sure if it is an air lock, and not a gasket. A gasket will leak down pretty fast under pressure. An air bubble can be a major pain in the @ss to get out sometimes, so getting the front end up high usually works.

Glad to help out, Good Luck!!!

you should have 2 air bleeders open both uptill you get steady stream if it still red lines its possible head gasket was put in wrong way printed side goes down.