Why is the coolant leaking?

Hi,

Have you see the leak? A thermostat won't cause a leak, so unless there was an issue with the housing, I'm not sure what they were hoping for.

Do me a favor. Take a look through this link and let me know if you are able to find the leak:

https://www.2carpros.com/articles/car-is-leaking-coolant

Let me know. Also, if you are unable to locate the leak, it would be a good idea to pressure test the system. That way, you can take your time when the engine is cold to locate it. You will need a pressure tester, but most parts stores will lend one to you.

Here is a link that explains how it's done:

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

Make sure to check around the intake manifold. They are known to leak.

Take care and let me know what you find or if you have questions.

Joe.