I just bought a 2005 Cobalt SS/SC. A piece on the back of the motor (toward drivers side) broke and is pouring out oil. I believe ots a plastic piece. The guy said its called a heater hole plug. Looked for it and cant find anything called that. Any idea of what else it could be called. He already took the piece out and doesnt have it anymore. I will try to get pics as soon as possible. Thank you

 

take a picture and we can help.

 

its the thermostat housing. Now if i could just find one thatd be great but it wont let me post in classifieds for some reason and the part is discontinued so gm cant get it for me):

 

the thermostat housing should not pour out oil. are you sure its that? it should only contain coolant.

 

A pic would still help there man!


Sure your not seeing something else leaking from above and leaking down and off of the housing?

 

Here's a parts brake down. Find it and then contact Tom at CED (Crate Engine Depot) and he'll get the part for you.

http://www.crateenginedepot.com/pdfs...ngineParts.pdf

 

It was the plastic plug on the back of the thermostat housing and it was coolant mixed with oil. Yayyyyyyy you know what that means lol. Have another lsj being delivered this week.