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patricia_williams1

Skyline coolant loss

Hi, I have a 2019 Nissan Skyline with a hybrid engine. The check engine light came on and the error memory says something about coolant. The coolant reservoir is lower than it should be. The car has 26654 km on it. What could be the cause?

4 comment(s)

rainerbrown9

Hey! Low coolant is never good. It could be a bunch of things. First, is there any visible coolant leaking under the car? Check around the radiator and all the hoses you can see. Also, check the radiator cap – is it sealing properly? A faulty cap can cause coolant to evaporate over time. Finally, has the car been running hotter than usual? Overheating can boil off coolant pretty quickly. A low coolant level can be caused by leaks in the cooling system, a faulty radiator cap not holding pressure, or even a failing water pump (which circulates the coolant).

patricia_williams1 (Author)

Thanks for the reply! I can't see any obvious leaks, and the temp gauge seems normal. How can I tell if the radiator cap is faulty? And what does the water pump actually do?

rainerbrown9

Okay, no visible leaks and normal temp is somewhat reassuring. A faulty radiator cap might look fine but not create a proper seal, letting coolant evaporate – it's designed to hold pressure in the cooling system, raising the boiling point of the coolant and preventing boilover. The water pump is a crucial part of your engine; it keeps the coolant flowing through the engine block and radiator to regulate engine temperature. If it’s failing, it won't circulate coolant effectively, potentially leading to overheating and coolant loss. I think you should visit a professional.

patricia_williams1 (Author)

Thanks for the help, I'll take it to a local workshop! They found a minor leak in a hose and fixed it for 52€.

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