floatingkiwi

Hi All

Is the burp valve on the coolant reservoir supposed to rise on it's own when the engine is at operating temp? Mine always does and I don't know if it is supposed to. It drops back down again when the car is cold.

Spiffyjiff

normal.

Dadio

+1 Normal for 997 but not for the 996/986 cars. System could be burbed when hot by raising the valve. I questioned whether or not my valve was working correctly after I got my 997 because of the way it worked in the Boxster. As it looks like the very same valve I figured they worked the same way.

Spiffyjiff

interesting. FWIW, the only 996 i've been close to was a '01 turbo with overheating issues at a DE. his burp valve worked the same as mine - open when hot, closed when cool. oh well.

floatingkiwi

I wonder then, how does the burp function work if it rises on it's own anyway?

Dadio

Works to release air if you raise it while the engine is cold prior to pressure build up.

floatingkiwi

Releases it to where? Do you need to leave the blue cap off as well?