a stuck closed thermostat,
a blown head gasket,
a cracked head,
a faulty water pump,
low on coolant,
A bad water pump or thermostat can cause an engine to overheat. A plugged (clogged) radiator or heater core may also cause an engine to overheat.
Yes, a restricted or leaking radiator can cause the engine to overheat.
Yes. The transmission fluid is cooled by a separate set of cooling lines in the radiator that cools your engine. If the radiator has an internal leak, cross-contamination may indeed occur. Only a little amount of engine coolant in your transmission can cause a transmission malfunction.
broken engine gasket.
Yes, if the radiator is clogged and the engine overheats. The main cause of head gasket failure is the engine overheating.
Yes, if the radiator fan is not working, it can cause overheating of the engine. The radiator fan helps to cool down the engine by pulling air through the radiator to remove heat. Without the fan, the engine may not receive adequate cooling, leading to overheating.
Radiator fan could be bad, fan relay bad, fuse blown. Also if your ECT (engine coolant temperature) sensor is bad the ECM (computer) won't know to tell the fan to turn on.
probably
Having a leak in a radiator hose will have no effect on the engine running or not. However, in time the hose leak will cause the level of the coolant in the radiator to drop below a critical level and the engine will overheat.
clogged radiator or bad water pump
No, but it can cause severe engine damage if you keep running the engine.
a bad fan control relay