Why is my car overheating

[aricanderson]

Ok, I was driving home from the movies today and it starting overheating even though the car had been sitting for about two hours.  Now about a month ago I replaced the radiator because it had a leak and it was cooling fine until today.  How do I find out whats wrong?  Like if the thermostat is bad.  Thanks

[my240likenoother]

ok do you have any coolant in there?? if not find out where its leaking from
if there is coolant in there than it could most likely be the termostat!!

[1stcar240sx]

After you have tried everything have a place check the headgasket. &nbsp;I tried to find out why my car was overheating for a couple months. &nbsp;I replaced every part of the cooling system before a place did a test that registered the problem. &nbsp;This is not to say i didnt have it tested before. &nbsp;Two differnet places checked it before they found the blown gasket. &nbsp;Only the third place found it and fixed it. &nbsp;Now it runs great. &nbsp; <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'>

[MarketPlayer]

Try this for shits and giggles...While engine is cold, remove the radiator cap, and stick the end of a garden hose in there. &nbsp;Turn on the water and engine, and just let the water overflow from the radiator, and accasionally rev the engine up and just play around w/ the throttle!
I did this after i replaced my radiator hose, and had it overheat on me. &nbsp;After that it has run just under the middle mark on the temp gauge!

good luck,
-zac

[MarketPlayer]

Try this for shits and giggles...While engine is cold, remove the radiator cap, and stick the end of a garden hose in there. &nbsp;Turn on the water and engine, and just let the water overflow from the radiator, and accasionally rev the engine up and just play around w/ the throttle!
I did this after i replaced my radiator hose, and had it overheat on me. &nbsp;After that it has run just under the middle mark on the temp gauge!

good luck,
-zac