Radiator Cap Blocking Overflow Tube

Has anyone heard of a radiator cap blocking an overflow tube. I was messing with my cooling system today and noticed the upper radiator hose was pretty inflated. Usually, in the past, the upper hose was still able to be squeezed even when its at full temp. I started to unscrew the cap and fluid started pouring into the overflow tank. It's an aftermarket CSF 2671. Anyone know if this requires a different radiator cap?

Nvm got it. Stant 10230 found it on this link incase anyone needs. They quoted the wrong part number for Stant but the others were correct. http://www.jeepforum.com/forum/f11/radiator-caps-fit-csf-3-core-hd-no-2671-a-1380887/

Was this on your rebuilt engine? Sorry if I'm confusing you with somebody else.


Sent from my iPhone using Tapatalk