The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.
A cracked radiator would leak the fluid out, leaving no coolant for your engine which would cause your engine to overheat and be destroyed pretty quickly. So the answer is NO.
You could have a cracked engine block.
Make sure the water tank is low enough to take on new water or you might have an overflow problem.
either a blown head gasket or a cracked head head gasket
cracked head or bad gasket
NO NO NO you can i guess but it will ruin your engine. You either have a cracked block or blown head gasket i would guess. Moisture in the engine will destroy it. In addition to a headgasket or cracked block (unlikely), would be cracked cylinder head, intake manifold gasket or manifold. What kind of car, what size engine? 1999 CADILLAC DEVILLE
depends on what your using engine for but no i would not recommend it
your Toyota should have an overflow bottle to retain the antifreeze during normal operations. Unless it is overfull, I would be looking for a leak.
Sounds like the rubber line on the bottom of reservoir is leaking or tank is cracked CHECK IT OUT.
Bad head gasket and/or cracked head.
You most likely have a blown head gasket or cracked head
engine coolant getting into an engine cylinder from a bad head gasket , cracked or warped head