Join Date: Jun 2002
Location: USA & Singapore
Ferrari Life Posts: 5,509
Yeah, you'll have to put a volt meter on the battery and check that out. You'll need a buddy to help you check it out. Put a voltmeter on the battery while your friend hits the key. If the battery reads 12.5 normal and goes below 10.5 while trying to crank then the battery is no good. The other thing it could be is a bad connection. If the battery reads 12.5 while the key is in the start position and it doesn't turn over then it is probably a bad connection somewhere. I once had a car that was running, quit and would not restart due to a bad battery connection. Do the operating accesseries stop when you are trying to crank the motor? Be sure all of your connections are clean and tight. Don't forget the ground connections, they are just as important.
It could be the battery cut off switch itself also. Did the car start normally before you switched off the battery? Is it possible to bypass or "jump" the switch to check that? I don't know how hard it is to get to the back off the switch (I imagine its not easy). Put your voltmeter on both of those connections to check voltage drop across the switch. It should not be more than 0.2.
Worst case scenario - the starter crapped out on you. If you have 12 volts at the starter and it won't crank (assuming the engine is free) then it is the starter.
Let us know how you make out. I'm hoping its the battery. Those are easy and relatively cheap to replace.
'79 308 GTS, '82 Jeep CJ7 Jamboree
"Time is what prevents everything from happening all at once."