Q: overheating, blowing white smoke and wont stay running !!!

The Check Engine Light was blinking due to one or more cylinders are misfiring from coolant leaking into the cylinders. You most likely blew a head gasket. Overheating the engine may have warped the cylinder heads. The cause of the overheating started when you started to add coolant to the reservoir - which may have caused some spillage. Have the engine cylinder heads removed and checked and gaskets replaced. A certified technician, such as one from YourMechanic, can come to your car’s location todiagnose your overheating issuefirsthand and guide you on how to proceed.