根据朋友们的建议敲了Starter, 几乎发动起来. 请各位看下面三个视频, 会是什么问题
After he knocked the starter:
The first video is his first try. There is spark at the positive wire connected the battery..
Then he tightened the wing nut and the car started for a bit (second video).
The third video shows his the third try.
Now he suspects the contact is not good. He plans to wire brush the contact and purchase hex nuts tomorrow so he can get a better connection.
Plus: he replaced the wire connections 3 years ago. i suspected he didn't do the good job.