There are quite a few vehicles out there that have common cooling system problems. BMW 3 Series always have fan clutches and thermostats going bad. Volkswagens have bad water pumps. Late model Jeep I6s have head gasket issues. The list goes on and on.

Now a 2006 Chevy Equinox with a 3.4L comes in with the issue of overheating and the “antifreeze boils.” The boiling of antifreeze indicates that something critical is defective (clogged radiator, defective thermostat, broken water pump impeller, etc.) Since 3.4Ls don’t typically have this issue, what would be the wise way to begin diagnosing this car?