As the mechanism that cools down the engine, a leak in the radiator may point to an inability to cool down after an argument. In the physical body a radiator in a dream may represent the thyroid gland.
Dreams of a generator represent that you are connecting with your power, your inner source of heat, energy, life force, passion and the persistence it takes to build dreams into reality. See Radiator and Furnace.... Strangest Dream Explanations
Dreams of heat represent passion, sexuality, energy, and power; being engaged in activity that warms your soul. Sometimes heat, like chemistry, happens when opposites attract or have friction. You might also have too many blankets on you as you are sleeping. See Fire and Radiator.... Strangest Dream Explanations
To dream of seeing intestines, signifies you are about to be visited by a grave calamity, which will remove some friend.
To see your own intestines, denotes grave situations are closing around you; sickness of a nature to affect you in your daily communications with others threatens you. Probable loss, with much displeasure, is also denoted.
If you think you lay them upon something, which turns out to be a radiator, and they begin to grow hot and make you very uncomfortable, and you ask others to assist you, and they refuse, it foretells unexpected calamity, which will probably come in the form of a desperate illness or a misfortune for which you will be censured by those formerly your friends. You may have trouble in extricating yourself from an unpromising predicament. ... Ten Thousand Dream Interpretation