Thanks for the advice! Took it to the dealership and it was under the timing belt and water pump installation warranty. They're replacing the O-ring and thats that. Much appreciated!
I have been reading this forum since I purchased my 4Runner in early 2012. Its a great forum and I have come here to learn anything and everything about my T4R.
I have a coolant leak. I know where it is and what needs to be replaced. Its leaking from the place where the thermostat housing goes...