Radiator With No Cap?


Undercover mod
why would a car use no cap?
The only reason i knew that was cause a friend of mine had a Neon i think it was like a 95 and it over heated on us, cause it was hydro locked, and to release pressure my stepbrother opened the pressure valve, it's basically the same as a rad cap, just on a coolant hose and not the rad.

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