My gf has a a Ford Explorer sport trac, she has a bad habit of leaving the lights on and killing the battery. Had to jump start it quite a few times. Well, yesterday she did the same thing so I went and jump started it. She was able to drive home with no problems (20-30min drive). The next day her car wouldn't start, not even try and crank, no clicks, nothing. I had the day off so I took her to work and went to test battery at shop, battery is fine. I put battery back in her car and turned ignition to on position and radio and everything worked. I tried to crank it, nothing again, no clicks, no power on radio or lights. I jump start it, it runs and I let it run for a bit, shut it off, try again, and nothing. Just for the heck of it, I went and got a new cheap battery just to see if the shop may have been wrong, they werent. I don't think it's the alternator as it will run for awhile without dying, or the starter because it starts fine if using jumper cables. No corrosion on terminals. Don't know what else to look for. Any help?
Read more: Car won't start except when jump started and battery is good?
