The top part where my Radiator Cap screws on is falling apart. The metal is cracking up so the cap doesn't secure right.. when coolant starts flowin it just spews out. Does this mean i need a whole new radiator or is there a way i can repair this?
Take it off and solder it. And if it's too far gone, replace the radiator. You can also try and patch it up with liquid metal, but that isn't the way to go in my opinion.