sometimes when I shut the car off the coolant boils now I'm thinking this could be a thermostat issue like its stuck closed or somwthing what do you guys thing and it dose not run hot while driving yet

 

bad rad cap . if it doesn't hold pressure ur coolant will boil much sooner. i'd change the stat anyway. replace it with a super stat. or one made of stainless stell and that will only fail open. atleast then all u get is a po128 code wen it goes instead of potentially overheating

 

alright thanks didn't think of the radiator cap being bad

 

Luckily they are cheap and easy to replace. Just don't forget the bleed and flush the coolant. I wouldn't trust a coolant that boiled a few times like that.

 

but Chi bi I've heard its not good to flush your coolant or am I mistaken

 

no never mind I'm thinking bout the trans. my fault

 

You should really keep the coolant flushed every 2 years or so. It's a good practice to keep.

 

FYI - Trans fluid with filter should be changed at recommended intervals. In my location, since I travel on 99% flat land and not in constant extreme heat my change interval is 100,000 miles or less. Just this spring, I changed the trans fluid/filter on my '94 Grand Am for it's second time. Has 210,000+ on it now and engine/trans works like new.
Most people claiming you NEVER change trans fluid and state they've destroyed transmissions by doing that probably did not do it at the proper internal based on there driving location.

As for the coolant boiling, the question is, was it boiling OR was it a matter of air escaping through a faulty radiator cap?

 

yeah I agree maniac you should change the trans. fluid just don't know bout flushing it. and I believe its boiling cause it smokes a lil when I take the cap off but once I drive today I will double check that

 

and I am starting to lean more towards the radiator cap tho