Coolant loss

175,000 MILES
Avatar
DAVE41180
  • MEMBER
  • 1 POST
Just fixed the coolant hose connector. Emptied radiator added more coolant and started car to bleed air out. Coolant level dropped and we added more. The engine overheated so we loosened the cap slowly and let coolant bubble out. Test drove it and it drove fine. Second test drive it overheated due to low coolant. So the next day I topped off coolant and got car to normal operating system and it stayed at that temperature but the coolant dropped 4 inches in reservoir. No signs of leaks on ground. Any ideas on where the coolant is going?
Dec 12, 2020 at 4:28 AM
Advertisement
Avatar
KASEKENNY
  • ✓Experienced Mechanic
  • 18,907 POSTS
If you have no external leaks and the engine is overheating, I am thinking you have a head gasket issue. Here is a guide on how to test this:

https://www.2carpros.com/articles/head-gasket-blown-test

Also, we need to pressure check the system and see if it will hold pressure. Here is a video that will help with this:

https://youtu.be/W8kra65m15c

Let us know what you find with this and we can go from there. Thanks
Dec 12, 2020 at 7:07 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle