Originally Posted By John_Kunkel
Load test the battery.


Gotta agree here.

Biggest load on the battery is starting the engine, so if the battery starts to go that is the first place you will see it have issues.

Simple test, if you have a meter, hook it up to the battery and see what it's no load voltage is. 12,8 or so is what you want to see. Then with the meter still attached have someone try to start is and see what the load voltage is then. Bet it virtually goes away.

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.