You can warp the head and crack the block if you keep it running for too long while its overheating, that's only two things. Fix the problem before you blow the engine.
replace it
Black duct tape
Your Engine Block has a HOLE in it! If I am right, your engine should be leaking water and anti-freeze EVERYWHERE so the only way to fix that is to replace your engine. HAVE FUN!!! www.craigslist.org Your best bet is to probably sell it...
check fuse for cooling fan, or possibly temperature sensor at inlet.
Valves will clatter if the engine is overheating.Valves will clatter if the engine is overheating.
The engine could possibly seize.
it may be because the aircon swithch is on. or someone shorted it to work as a prevention to engine overheating.
Before you can fix it, you need to find where the problem lies. Most common causes of overheating are: thermostat stuck in closed position; faulty radiator fan motor or relay. Other causes are faulty water pump; clogged radiator or hoses; loose belt.
I suggest you take your car to the dealer and they might be able to fix the problem.
what is the cost to fix an overheating Subaru Legacy Wagon. Is it the thermostat? How much are they to replace?
Overheating an engine can cause the engine to see up resulting in a complete engine failure. Overheating the engine can cause the head gasket to fail.