For the past 10 days I've had trouble getting the starter to do more than click: Usually I can solve this by moving the (auto) shifter through the gears and then starting in neutral, sometimes it takes a few tries.
Yesterday it did something different: the engine started, and there was a horrible sound, so after 10 seconds I shut down and pulled out the key. The engine continued to turn over. I thought it was dieseling but that didn't make sense. It was the starter continuing to turn the flywheel even though the ignition was off and the key pulled out.
I finally stopped it by pulling off the neg. battery cable. When I reattached the cable, the starter turned the flywheel again.
What is wrong, and how can I fix it? Thanks.