再更新，2011 Camry LE. Can’t start. 请教,车子的问题,还是电池的问题.

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.

 

https://photos.google.com/share/AF1QipNNKv4ik7QOBDFD1eFVe4z0gAbQ9Q6rUn4NdwjxkEBZtecBKue3HFQ2UKCZFRrSYQ/photo/AF1QipPUxB9O2GI42O-UZUYJGdJj9CWtZDawxzA_BrIW?key=eFlFaEFHdGdyY1NsNlBZdnBKRERYWkdiM1B3MmFR

https://photos.google.com/share/AF1QipNNKv4ik7QOBDFD1eFVe4z0gAbQ9Q6rUn4NdwjxkEBZtecBKue3HFQ2UKCZFRrSYQ/photo/AF1QipMZA_31qbetMVa9PNCF-rz4BlYdgxQSIbdIMT6Z?key=eFlFaEFHdGdyY1NsNlBZdnBKRERYWkdiM1B3MmFR

 

https://photos.google.com/share/AF1QipNNKv4ik7QOBDFD1eFVe4z0gAbQ9Q6rUn4NdwjxkEBZtecBKue3HFQ2UKCZFRrSYQ/photo/AF1QipP5MGaUcux7LTDAtzUYB671o7NFZFzAy6Ko1h5k?key=eFlFaEFHdGdyY1NsNlBZdnBKRERYWkdiM1B3MmFR

 

现在一般都是汽车换件，换上一个新starter应该ok，最好原厂件。百度：

汽车车辆上的启动机敲几下就可以正常使用原因一是电机碳刷磨损或接触不良，二是开关触点接触不良导致的。

why the car still did not start? is the starter dead?

Now after the battery connector tightened up

It cranked didn't it? Then the starter was not the problem, the problem was the loose contact of the battery, that's why it sparked at the first try.

有Engine error light吗（图）？有的话会提示哪里出错。目前看像启动电机故障，敲一下有反应能启动但不会长久

Do you mean the loose contact of the battery is the issue.

Not the starter?

No any read codes.

第二个视频显示，您的车载电池正极（红色那边）似乎接触不良，可以看到很大的电火花。而第三个视频几乎要启动的情况没有电火花

觉得您需要仔细清理电池红色接线柱、检查跟红色接线柱连接的电线是否多股铜丝断了若干股？刚点火时听声音starter是正常的，如果电池跟starter之间的电线接触不良的话starter得不到持续的大电流供应（需要几秒钟）也会启动失败。

The starter did what it supposed to do.

It didn't at the beginning was because that the loose connection couldn't pass enough current to the starter needed to turn  the engine over.

根据你的建议, 已提醒儿子. starter是正常的吗? 谢谢

让我告你你这车有两种修法

送去修车辅的话二话不说立马给你换个starter先赚你个两三百再花半分钟把电池cable拧拧紧。

要我帮你修的话？把电池接线端拧拧好，不换starter,再注意观察starter以后的表现。最多要你30。

Thanks a lot.

都着了又熄了，难道不该想想电池启动马达之外的问题吗？启动机在启动那一刻已经尽职了，以前和以后不详，但这次没毛病！

电池和Starter都是无辜的，结合录像看，正极柱连接松动是确定的，这也解释了为啥频繁电池完蛋，因为反向无法充分充电

让儿子给电池连接部位照些特写，看看到底啥情况。

对于电池一个普遍的误区是--只要电池连接的端点螺栓上紧，就是好连接----实际中，由于电池极柱是由铅制，偏软，其直径会变小，直到直径小到connector 的螺丝再怎么紧固也不能提供良好连接，此时就要换connector了。

另外，电池是否固定良好，也是一个重要因素。

 

啥叫＂几乎发动起来”？

Cranked but no firing? Engine faled to run when he let the key go?

Can a corroded battery wire cause a check engine light on?

Well, yes and no, it depends. Many of the sensors on modern vehicles use voltage as a control. If the sensors detect lower than expected voltage due to poor electrical connections, that could cause a check engine light. However, once the car has been started and is running, most (if not all) voltage is supplied directly by the alternator and not the battery.

(https://www.quora.com/Can-a-bad-battery-connection-cause-a-check-engine-light-What-problems-can-corroded-battery-terminals-cause)

Before this time, only click no cranking

先把电池接头清理干净，涂上防锈油再再试。

已经清理。车已经可以发动。谢谢以上所有的朋友。

现在可以确定是电池连接问题。谢谢各位的热心相助。

清理干净还要用 battery anti corrosion ，这样才能持久。比如里面这种。

恭喜！看似纷繁复杂的症状，到头来其实就是最简单的上紧螺栓的事！

Thanks a lot.

Should return the starter that was ordered, but not used?

if it is never installed, still in box, you can return it

凡事皆从易着手，小事一桩人自扰

你看问题总是看到关键点。

你的分析非常正确。

而且分析的非常到位。

解决问题永远都先要满足最基本的条件

大部分商店都可以退货。