To me that sounds like a cracked head gasket.

 

I also saw bubbling from the seal of the air intake pipe below the radiator cap

That's the overflow tube.

The plastic filler neck may have developed a crack. If so it will need replaced.

You may want to get the coolant system pressure tested, and have a check done for engine oil in the coolant.

You can also pull the dipstick and check the engine oil to see if it looks milky, or if there's any milky goo on the bottom of the engine oil filler cap, which can indicate coolant in the engine oil from a bad head gasket, etc.

Ps. the video's are set to "private" so we can't see them...

 

Thanks! I just changed the videos to public. Appreciate the heads up.

 

Sure, you're welcome!

Looks like the filler neck is cracked and leaking.

Check around and and see if you can get a replacement neck that will fit the existing hose so you don't have to buy a whole new one.

If there's nothing local, a search for "Inline filler neck" might help turn something up in your area.

 

I had the same problem.. wait till it cools down obviously, where the radiator cap sits, if you undo it and separate it from the hoses, you'll probly find the plastic bit that holds the hose is cracked n crumbled.. you'll find it cheap online around $15 - $30

 

The upper radiator hose runs $65 (no oil cooler, non-CVT) to $110 (CVT) at the parts stores.
Can find cheaper online of course.

Dorman makes a replacement filler neck (902-305) that I think is the right diameter (It is not a listed application). I runs around $20. Supposed to be lifetime warranty as well.

But, at ~10yrs old I'd just change the hose. They are generally good for 4-5 years though some last 10, even 15 years.
Supposedly the newer materials are better and longer lived but I can't find reference to when that change happened (or if it happened for a given vehicle). Of course you can inspect for hard/cracking hoses or soft mushy hoses and only change the ones that seem deteriorated.

I probably should change my heater hoses. The others were changed when I installed the oil cooler.

 

I had the same issue with mine and it was a head gasket

 

Just replace the two thermostat s located under the breaker box under the hood,drivers side.they may tell you to replace the whole housing,but not necessarily needed.just get the two stats.easy job actually.