You're describing the symptoms of a very common problem on all car brands. Follow the smaller positive battery wire to where it is bolted to the under-hood fuse box. Be sure that connection is clean and tight.
When you have metal tools on that nut, be absolutely certain the other end doesn't touch anything else metal on the vehicle. Doing so will create a dead short, and if you're lucky you'll only have a huge shower of sparks. If you're not lucky, the wrench will become welded in place and will turn red hot.
Wednesday, July 16th, 2014 AT 9:39 PM