- Oct 21, 2009
- 162
- 0
- 17
I've noticed there are two wires coming from the ground of the battery. One thick wire that goes to the timing chain cover and a thin wire that goes to the driver's side fender wall. What is this skinny ground wire for? I think it's been giving me problems. As of about two minutes ago, when I try to turn the car completely on it just clicks and shuts all electricity off and illuminates the check engine light until I open and close the door, then my alarm goes off and electricity comes completely back on. Then shortly after that all happens my car either does it again or starts right up. When I had the hood up I noticed when I turn the key to turn the engine on I noticed a spark from where the little ground wire meets the fender. I'm at a loss because I've cleaned connections, changed battery terminals, wires, etc.