Last year my stock radiator failed. I replaced the hoses/clamps/radiator/therm/cap etc.
After the install, and after a few hundred miles, my car will put antifreeze into the overfill, so I need to add more. I replaced the stock radiator with an aftermarket Mishimoto. Currently I have two filler caps...1 on the new radiator....1 on the filler neck past the radiator(the stock radiator didn't have a filler neck). Should I bypass the second or what did I do wrong?
I appreciate any help...