so the green stuff does look like coolant. More than likely, when the car gets to full operating temperature, it will build up enough pressure in the water cooling system, and then it will probably smoke again. I think since you were low on coolant, that you have a bad hose somewhere, you need you check the hoses that go from the radiotor to the water pump, they are probably cracked, those need to be changed every once in while, especially on older vehicles
let me know how it goes, and thanks for the shout out. I will resteem this because we are trying to fix or diagnose car trouble over steemit, probably for the first time in a blockchains history!!
full $teem ahead!