Okay so,the other night I was coming home and I hit a gnarly pothole, and my 2001 Cherokee Sport shut off abruptly. I then turned it back on a few seconds later, and drove it a good 25 miles home with no problems. After having it sit until the following evening, I went to turn it on, but to no avail. It didn't rev or anything, it would just click a single time when I turned the key, and all my readouts (oil, fuel, coolant, battery power, etc.) were normal. So today I thought that maybe it was a ground, so I checked my chasis ground by the battery, and it was fine. I then checked my replacement JVC CD stereo's ground and found that it was only halfway on, so I put it back on all the way. Nothing changed. So, I took the whole stereo and the adapter I had for it out, and the car started right up. So, I re-wired the adaptor and re-installed the radio, and the car started right up. So, about an hour later I went to take my girlfriend home, AND IT WOULDN'T START, IT JUST CLICKED WHEN I TURNED THE KEY. Luckily, I have my Dodge pickup.
I'm pulling my hair out over this, so anything you guys can tell me is more than greatly appreciated.