Originally Posted by superz

Pressure in the cooling system varies with every car model. Some show no pressure when cold, the Evo always shows some pressure when cold. Once you let some coolant drip on the radiator it will take days to burn off. Remember that coolant is designed to take heat so typical radiator heat is not enough to burn it off. I personally dont think their is anything wrong with your cooling system. The guy that tested his cap and found it to be bad probably didnt test it properly, in over 11 years of working as a tech I have changed 1 bad radiator cap. Evos are not prone to having air in the system either.

Originally Posted by barneyb

Unlike engines, tires and brakes, radiator pressure caps never wear out.

Originally Posted by smokedmustang

YOU WERE RIGHT!! Swapped cap out, no problemo! Thanks.

Originally Posted by cij911

Ummmm...see post #2 .... ....could have saved you some time...as for the Mistu. mechanic that has never seen a bad one, well I am shocked as every water cooled car I have owned has required a new radiator cap at one point in its life....