Radiator cap - should it be pressurized?

RedFish said

Its not easy to tell by squeezing the upper hose. 18 psi aint much resistance.
I.

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Red, yur slippin here, LOL.

You should be able to easily tell by squeezing the hose.


Is it possible you got the wrong depth cap? There are different depth radiator necks for different applications, and of course the cap could just plain be defective.