We need to check for a blown head gasket to start. However, the other possible cause is you still have an air pocket. When you have an air pocket it expands when it heats up and it just pushes the fluid out.
We need to start with eliminating the head gasket so I would test this when it is hot before or after it pushes the coolant out. Just don't refill it completely so that you can get this tester on the coolant bottle. You need to do it when it is hot or the head gasket may be sealing back up when it is cooled off so you want to test it when the issue happens.
If there are no combustion gases in the coolant then we need to go back to bleeding the coolant. A trick that may help is to jack up the front corner that is the coolant bottle is closest to. This will help force the air to the highest point and allow it to escape.
Let's try this and go from there. Thanks
Saturday, January 9th, 2021 AT 7:16 AM