I HAD THE SAME PROBLEM ON MY 1994 VANDEM plas. It was my altenator belt was not tight enough to maintain a full charge. It took me two years to find the problem.
It can also be the battery has a dead cell which will drain it overnight. Can also be some light is staying on and pulling power from the battery. Also a stuck relay will drain the battery. Loose or corroded connections is another possibility.
180$
the drain will be at the bottom of the radiator,either on the left or right side.
You need to remove the engine oil drain plug. It is on the bottom rear of the engine.
40g
The main battery for starting car is in engine bay. There is an aux.battery in the trunk.
Siphon it out through the access hole in the trunk...
Underneath the A/C evaporator core case which is in the engine compartment
Electrical sytem positive ground
originally 6v poitive ground
The 1993 Chevrolet Lumina was offered as a sedan and in the APV minivan. Between the sedan and van it had four different engine options. In general the oil drain plug will be located on the oil pan. The exact location and style will depend on which model and engine Lumina you have.
this resets the computer in most cars. take the battery cables off the battery and touch them together your computer is reset.
Coupe, under the hood. Sedan and convertible, inside the driver side fender.