Will a seized engine run at all?
No, a seized engine will not run. A seized engine is one where internal components are locked together, preventing them from moving. This could be due to a lack of lubrication, overheating, or other mechanical failure. Since the engine's internal parts (like the pistons and crankshaft) need to move to function, a seized engine is completely inoperable. Attempting to start it could cause significant further damage.