This is what happened. My girlfriends car overheated. She drove it till the car shut its self off. yea i know... Any way so the next day I checked out the car and the radiator was cracked. I replaced that and filled the car up with antifreeze and every thing seemed ok. Her sister drove it for about 2 hours and it overheated again. I looked at the car and all the antifreeze was gone. I filled it up with water and ran the engine and there were no leaks. Also the engine is sputtering when it starts up. Some times the engine wont start unless you give it gas. I am thinking that there is a head gasket issue and the antifreeze/water is getting into the engine and burning off. I am going to try to do a compression test tomorrow and see what that bring.

What do you guys think so far with this limited information???

Thanks for the help

 

More Than Likely You Blew A Head Gasket Check The Oil To See If It Has Antifreeze Or Water In It.

 

i checked the dip stick looks like all oil to me. Plus the oil pan is not over full its just reguler.

 

What kind of car, with what engine, does your GF drive?

 

its a 95 sable 3.8L v6 dident want to say anything given the type of forum this is.

 

If it did blow a gasket, water might be going into a cylinder. Pull the plugs. A lot of times the cylinder(s) getting the water will be steam cleaned. As long as the plugs are out, do a compression test. If adjacent 2 are low, gasket blew between them.

Worst case scenario... cracked a head(s). They'll do that between the valves when overheated.

 

im heading there now to do the comp test ill post results when im done.

 

Well since this is my life the compression gauge wont fit... But i did notice something, the antifreeze smells like gas. So there is definitely a blown head gasket. Also when i warm the car up by doing some deep reves the car runs normally. I am assuming that this is because when i rev it, all the water and antifreeze is being burned off. I am unsure which cylinders are affected. I am going to pull the injectors to see if i can see any thing. I am unsure what i am looking for besides random wetness.

 

I ended up pulling out a spark plug that had a little green on it. So im going to be pulling the head tomorrow.

 

I can see why...

 

Well i pulled the head off and guess what. no blown head gasket. But i did notice one thing. That one cylinder that had antifreeze on the spark plug looks like it was steamed clean. I have a pic of the cylinder head. 2 cylinders are dirty one is clean. hmmm. Can the head gasket still be bad even though it is not blown? Any one have any ideas what the problem could be?

Also the middle cylinder has a small clean spot on the left side that is closest to the left clean cylinder. I was thinking maybe some antifreeze seeped in there too, but i dono. Also the cylinder wall dident have the build up normal cylinders have on the top where the piston rings stop and the cylinder was cleaner then the other two.

 

some one thought it might be this

"That's classic water in the combustion chamber. When you overheat an
aluminum head engine, the head gasket gets too thin from the
overexpanded head. "

 

Just a thought too, you did check the radiator cap to make sure you're not losing the coolant through there right? If the cap is bad the coolant will evaporate, then causing the car to overheat.

 

yea its good. good thought though