Radiator Pressure Relief 2011 SHO

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ticoscen

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Was doing two drain and fills on the tranny today. Noticed some crusty pinkish antifreeze on the oil pan. The water pump and chains were done recently so it wasn't coming from anywhere near the weap hole. Looks like it came from one of the hoses off the radiator up front. So, I opened the over flow reservoir only to see that it was TOTALLY FULL to the CAP. Hence, no room for expansion. Hence, the SHO was doing it's own pressure relief somewhere? Is there a relief valve or cap somewhere on the radiator? Is there a pressure relief other than leaking past a hose clamp? Siphoned it down to the MAX line and testing again to see if it was a transient event. Oil looks fine.
 

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