Join Date: Aug 1998
Location: Waldorf Md. USA
Re: 1994 Cavalier 2.2 leaking head gasket
The coolant leak itself wont make it run hot but if it is loosing coolant and gets low then it most certainly will run hot. Clean your off real good and put some die in the cooling system. I bet that half of those heads that I have seen that supposedly had leaking head gaskets were actually leaking from the flat plate that bolts to one end of the head. It starts leaking and the coolant runs around and looks like it is leaking out of the head gasket. Those heads also had a porosity issue in certain years. The aluminum casting was porous and after a while would start leakaing through the casting itself. That is usually around the spark plug area.
So your first step should be to clean everything up real good, put some die in the system and run it to see exactly where it is leaking from.
And please, no matter what anyone says, don't use the Blue Devil junk. When the head gasket starts to leak again and you have to fix it correctly your machine shop will cuss you while they are trying to get all of that hardened cement like junk out of the cylinder head and you will have to get it out of the rest of the cooling system.
Advanced Automotive Machine
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