i have a 90 subaru legacy its overheating changed the thermostat and radiator already any suggestions?

are the cooling fans comming on?

yes fans are coming on

with it warmed up and the rad. cap off, do you see any bubbles in the rad.?
how does the bottom of the oil fill cap look, milkey?

is the coolant only comming out from the tank's overflow?
how far does the temp go up?
how fast does it over heat?

i'd say to a chemical test on rad. to see if exhaust gases are leaking into the coolant system.
call some parts stores for the test kit, it's easy to do.
if it turns color the heads will have to come off for insp.
if you see some tiny cracks just around the valve seats, they aren't the cause, more than likely it'll be the gasket shot.

Rip,

Sorry, but what you're saying here is not adding up. Post the results of a "Compression Test". If you want to take this to the next level (TO BE REALLY SURE) post the results of a "Cylinder Leak Down Test", (IN ADDITION TO THE COMPRESSION TEST). Letting us know if the "Electrodes" on the plugs are "Coolant Fouled" would also be a good thing.

no it may not, it will just tell you if pressure is low.
most cracks donn't cause too much compression loss.
most shops send the cylinder heads out to be crack tested, but some cracks can be seen, you just have to know what to look for.
your not saying it runs poor so it sounds like a small amount of exhaust gas getting into the cooling system.
how does it start after sitting a while?

rip,

Understand that mws919 and I are trying to help you. It's ok to ask questions. We expect questions, and we welcome them. Just understand that at some point you have to stop asking questions, and post the results of the tests we are asking you to do. Remember. This is online auto repair. We don't have your Taurus in front of us. We can't run any tests on it. Without your feedback (IN THE FORM OF ANSWERS TO OUR QUESTIONS) your Taurus will (NEVER) get fixed. Another route you can take is to have a sample of your engine coolant analyzed by a "Professional" radiator repair shop. they will be able to tell you if combustion gases are present in your coolant. If you go that route, post the results. Let us know what's going on.

rip,

We're extra patient with females, but you have to tell us. Online remember? We have no way of knowing your gender. we're here to help. Just keep us posted.

I believe that autozone rents akit to test for exhaust gases in the coolant--this would help you diagnose or eliminate some possibilities. Call them to see if they rent these kits.

When you rent form them, you'll get all of your money back when you take the tool back---not sure if it's the same for this kit.

how you making out?

good deal, let us know if it acts up again or if you have any more questions.

Great! Next time you have the cooling system drained, be sure to bleed the air out of the system to avoid this.