ok well i have a gsr engine in my 92 hatch, and i changed the thermostat a couple times and bled out the lines, and then maybe a week or so later ill have to bleed the lines again and then it'll work fine,, and the pattern continues.. how is it that air keeps getting into my lines??/

 

lose any coolant??

 

Do you have a leak somewhere that when it stops air gets in (example, like in the upper hose)?

 

not that i know of, i never see fluid anywhere in the engine bay.. could it be possible that there is a pinhole leak in one of my hoses that is causing this problem??

 

It would have to be bigger then a pin hole to put so much air in there that you need to bleed it all the time.

How do you bleed it? Your sure your doing it right? Also what happens that you know you need to bleed it? Does the car overheat?

 

well i know to bleed it because the car will run fine for awhile and then it will slowly overheat and wont really cool down, until randomly, i assume its air in the lines because that is usually the cause of that.. im not positive but thats what ive been doing, i bleed the lines by either letting the car run w/ the radiator cap off and letting the bubbles come out.. or i squeeze the upper and lower radiator hoses to allow air to come out.. and putting in extra fluid as needed.. this is the correct way right??

 

Thats not bleeding, thats just what you do when you want to redo your radiator. To bleed it you have to use the bleeder valve. I dont have a picture on my computer but i could take one tomorrow morning for you if you dont know where it is.

Follow the upper rad. hose to where it hits the block, you should see a bleeder valve right there. Its 12mm. Open up the rad. cap and let the car run til its warm and the fan turns on. Now when the fan turns off (wait til its off so the fan doesnt nick you) open up the bleeder valve a little and let water/antifreeze come out. Now while you have it open add water and keep doing this until you see a nice solid stream of water. Close the valve and fill the radiator and then close the cap and your set.

 

you dont see any fluids in the engine compartment but does the coolant level go down under the cap?

 

yeah if you can please send me a picture.. thanx