Why do I have to keep filling my coolant reservoir?

When you turn the car off and things cool, it sucks coolant out and back to the radiator. If there isnt enough in the reservoir you’ll suck in air and potentially create an air pocket that keeps the coolant from circulating. If you over fill the reservoir the excess will just run out the hole in the cap.

Can you lose coolant without a leak?

When you are losing coolant but no leak is visible, several parts could be the guilty party. It could be a blown head gasket, a fractured cylinder head, damaged cylinder bores, or a manifold leak. However, you may breathe easy if the mechanic does not find any trace of exhaust gases in the coolant.

Why does my coolant reservoir not return to the radiator?

When the overflowing coolant reservoir does not return to the radiator the hot coolant that needs to be cooled down, means that there might be a leakage or clog of the radiator hoses that allow the flow of fluid from the coolant reservoir to the radiator. It can be a result of a damaged radiator cap.

What happens when your car’s radiator cap goes bad?

Your car’s radiator is pressurized, which means that your radiator cap is in charge of creating the seal that your car’s cooling system needs to do its job. And if it goes bad on you, it could lead to coolant working its way out of your car and emptying your coolant reservoir.

Why is my coolant tank empty when I drive?

This is causing the engine to consume/burn the coolant. This is the reason your coolant auxiliary tank is always empty. The boiling out of water also happens due to this. DON’T DRIVE THE CAR ANY FURTHER.

What happens when you fix your Radiator?

By fixing your radiator, a mechanic will be able to fill your coolant reservoir back up and keep it that way. 2. You Have a Bad Radiator Cap Your car’s radiator cap is, in the grand scheme of things, a relatively small part compared to many of the other parts in your car.