Is a head gasket just something that goes bad over time like a valve cover gasket? Or is it most likely an affect of an underlying problem such as clogged water passages?
I put a new radiator in last December and haven't had overheating problems since then. It ran a little hot a couple days ago but, the coolant was low.
No water evident in oil. The exhaust smells like exhaust. I'll check plugs tomorrow.
