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JFP in PA · 02-10-2011, 12:42 PM

No, it should not be “open” all on its own. Either the part is acting up, or you may have air in the system and are seeing the results of a “hot spot” somewhere in the system. Do you have access to a vacuum filling tool? If you do, pull a quick vacuum on the system when it cools down, if air comes out the coolant level in the tank will drop, and you can top the system off using the tool while under vacuum. If you pull a vacuum, and nothing comes out, you should look at replacing/rebuilding the bleeder assembly.

02-10-2011, 12:42 PM	#6
JFP in PA Registered User Join Date: Feb 2005 Location: It's a kind of magic..... Posts: 6,603	No, it should not be “open” all on its own. Either the part is acting up, or you may have air in the system and are seeing the results of a “hot spot” somewhere in the system. Do you have access to a vacuum filling tool? If you do, pull a quick vacuum on the system when it cools down, if air comes out the coolant level in the tank will drop, and you can top the system off using the tool while under vacuum. If you pull a vacuum, and nothing comes out, you should look at replacing/rebuilding the bleeder assembly. __________________ “Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein Last edited by JFP in PA; 02-10-2011 at 01:06 PM.