What would?

[Aztlanahauc]

What would cause a battery to spark when you try to connect the cables? I can have one connected but when I try to connect the other it sparks.

 

[Sleeper-6]

Any kind of draw in the car will do that. Interior light, hood light, Stiffening caps for aftermarket stereos are always exciting. A small spark is normal, If it looks like you're trying to arc weld that is a bad thing.

 

[Gary Wells]

Cross dressing the leads will bring serious fireworks very quickly.

 

["Turbo-T"]

Mine also arcs when connecting the battery. Not a big arc mind you but still...IMO any is not good. Batteries don't like sparks.

And on mine, the under hood lamp was removed, all power accessories were off, I unplugged the ECM wire, not sure what else on the car could be drawing any current except maybe the memory for the clock.

 

[Aztlanahauc]

Found the problem. Seems like the little 10 mm eyelet was bent just a little to touch the body of the alternator. I think I fried my alternator though.

At least the car runs after 2 years of sitting.:biggrin: