An engine running hotter than normal can be caused by the coolant level being low (possibly due to a leak somewhere), a clogged radiator, a malfunctioning water pump (which circulates coolant ...

Coolant is a rust inhibitor that protects the water pump, radiator ... drivers will also receive a clue if a vehicle starts running hotter than usual. When coolant is replaced, one option ...

If the illuminated light is the one declaring that your engine is running hot ... corrosion, faulty pump, and, of course, a lack of coolant, among others. If any one of those components fails ...

If refrigerant, the key substance inside a heat pump leaks into the atmosphere, it can warm the planet thousands of times ...