A bad connection, or excessive resistance on that circuit.
Check all of you bulbs on the car, more than likely one is burned out...
The light bulb may be burned out.
You have light bulb that is burned out at the back of the vehicle.
The slipery material in the electrical connectors is not oil. It is a silicon-based grease to protect the contact from corroding and helps to maintain optimum electrical continuity.
You probably have a little oil seeping into the combustion chamber while the engine is off. Once you start the engine, this oil is burned and causes the smoke you see.
to light in the back
burned out bulb maybe brake light
Your alternator is on its way out.
When you run your car low on oil you increase the instance of burning your motor. If your motor burned out your car won't work.
check your brake light or tail light you probably have a bulb burned out
loud, and shety muffler
I had the same problem on my 1999 Windstar. It turned out that the light bulb for this indicator was burned out. I simply replaced it and the problem was solved!!