Coolant reservoir is leaking from the bottom

Good afternoon.

Did the car overheat?

You may have a bad cap. Check and see if the rubber is damaged in the cap.

Does the tank leak with the cap on?

Is this where it is leaking?



Roy

https://www.2carpros.com/articles/coolant-reservoir-replacement

https://www.2carpros.com/articles/radiator-pressure-test

It leaks with the cap on also but not bad as when the cap is off or the car started. It did get hot when it started leaking suddenly. I think it may be coming from the square looking hole that is in the bottom of the tank, but not completely sure.

I would start with a radiator cap. Beyond that you will need to do a pressure test to find the exact failure.

Roy

I got a new cap and put it on and it is still leaking when I start the car. The coolant in it that was left overnight was still in the tank this morning.

Okay, you need to rent a pressure tester and pressure test the system to find the leak.

It could be a hose, switch or the tank itself.

Roy