Chevy3500
New Member
Ok i currently am a mechanic at a shop here in town working full time. I have a great deal of knowledge but am still learning and ask for help when i need it. I am working on a chevy corsica i think thats what it is. Well the guy brought the car back twice saying it would over heat and me and the other mechanics noticed their is blueish vapor coming from the tail pipe . Well i couldnt get it to over heat so i figured it was get excess pressure in the cooling system from a blown head gasket. Well i let the car get it op temp and did the block test and sure enough their was combustion gases presence in the cooling system. I am trying to narrow down which cylinder is leaking into the combustion chamber. I tryed to fill the combustion chamber with 80 psi and put a gauge on the cooling system and the gauge didnt rise, is their anyother easy way to narrow down where its leaking. and help would be great thanks