The thermostat is stuck open or missing.
Either a bad starter or the engine control system trips and thinks the van is over heating when really it isnt.
because it isnt hot enough and will leave soot on the bottom of the thing you are heating
try hooking up the hose to he jetski
no it is not heating up the atmosphere
its quite simple it adds some revs to the engine, to f.e. speed up heating of the engine in cold weather when its idling and so on (charge more quickly)
While your car is running the engine is heating up. While your driving you have air being forced over the radiator cooling it off. When you are sitting still you don't have that air so your engine is heating up even more so the cooling fan comes on to help cool you engine off. Via cooling the radiator.
To keep the car engine from over heating
Possible air lock in the heating pipes. Common after changing thermostat. look for a bleed screw on the heating pipes between the engine and interior, or loosen one of the heater pipes., after engine has warmed up. Run engine to dislodge trapped air.
no it isnt it is a 4 stoke engine
The most common cause of a blown head gasket is an over heating engine. Low coolant or coolant not circulating through the engine causes the engine to heat up and the gasket to fail.
The term heating up means that you are getting mad.
It won't cause over heating.....but it can go bad and send a signal that the engine is over heating when it is not.