This evening I was able to buy a OE radiator cap after my car got overheated 2 weeks ago. I already changed the coolant hose but notice the coolant on my reservoir keep on disappearing after parking. Anyway, I bought the cap, filled some coolant into the radiator, let the car run for 30 sec. During the 30 sec smoke starting coming out of the valve right in front of the header. I turn off the car and that was it. Before I go back and do anything to it, I need some help why the smoke came out like that? It was burning the header. Does anybody know what it could be?

 

Why dont you go outside and take a look?

 

I have looked at it while the car was running. I don't really know where the smoke actually came from, it's like the smoke came from somewhere underneath the engine and just leak through the header up. That's how I was able to see it.

 

I'm thinking it's burning off exessive oil or water. It only happen when I start the car trying to add coolant into the radiator and let the car run. It doesn't seem to happen anymore afterward if i take it out for a short drive. I guess I am safe.

 

yes, it's burnt oil cuz when I took out my dipstick last time, I drop some oil into the header. LOL. I can't believe simple things like these are overlooked.