mazdafvr
+1y
id keep an eye on the coolant level if theres none in the over flow tank, and if its leaking, It wouldn't cause smoke unless it was leaking through the head gasket into the cylinder. if this was the case then typically the whole coolant system would pressurize faster than normal. make sure your not loosing coolant, if you are and everything else is dry then your head gasket might have went again, happened to me. I had water and steam coming out of my exhaust manifold when I took the emissions hose off. also had exhaust smoke coming out of my overflow hose. if your not loosing coolant, might just be running rich or burning oil. you can pull your plugs and see if any of them have more or different deposits left on them.