David Vandercook
Senior Member
About a week ago I noticed my coolant was boiling, so I decided to burp the system. I bought the funnel and hooked it up and started the engine, and things seemed to go fine, the air was coming out. Then it started boiling over and I shut the truck off and then the coolant erupted in a huge mess. What happened?! Why is it boiling and why did it all shoot out?