make this short and if more is needed ask, sometimes i start my car fine and other days i have to run a cable from the battery (black - ground) to the starter. i put a volt meter to the starter and its getting 12-13 volts and when u try to start it sometimes it starts (and holds 12-11volts) and other times it goes down to 1.8volts. (i guess losing alot of ground, and not starting). i checked my 2 ground cables and they look good. is there more to check? do they make better ground cables from trany and motor?