# 2015 e6 Motor Arching

**URL:** https://community.electricforum.com/t/2015-e6-motor-arching/13620
**Category:** GEM Forum
**Created:** [April 26, 2018, 8:26pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620 "2018-04-26T20:26:09Z")
**Posts on this page:** 12
**Page:** 1

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### Author: ![earami](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@earami](https://community.electricforum.com/u/earami)
#### Post date: [April 26, 2018, 8:26pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/1 "2018-04-26T20:26:09Z")

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My motor arcs after I turn it off. I see the arc from the shroud.

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### Author: ![Naetdogg](https://avatars.discourse-cdn.com/v4/letter/n/cc9497/32.png) [@Naetdogg](https://community.electricforum.com/u/Naetdogg)
#### Post date: [April 27, 2018, 3:29am UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/2 "2018-04-27T03:29:46Z")

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Probably your temp sensor on the motor, you can bypass the sensor by making a jumper from one side of the connection to the other on the harness side. Make sure the temp sensor connector on the motor side is disconnected (sparks occur otherwise). Of course now your controller won’t know if your motor overheats in the future. Not sure how you would fix it on the motor side without peeling away the insulation and resin.

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### Author: ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)
#### Post date: [April 27, 2018, 2:46pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/3 "2018-04-27T14:46:44Z")

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Your motor may have stuck brushes and needs to be serviced.

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### Author: ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)
#### Post date: [April 27, 2018, 5:04pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/4 "2018-04-27T17:04:20Z")

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> [@earami](#):
>
> after I turn it off.

That’s weird, right?  
Sure it’s from the motor, not the contactor?

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### Author: ![earami](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@earami](https://community.electricforum.com/u/earami)
#### Post date: [April 28, 2018, 9:10pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/5 "2018-04-28T21:10:24Z")

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Thanks for response. Car only has 1000 miles on it. Seems to spark from the copper coils. I can see the arc through the vents.

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### Author: ![Naetdogg](https://avatars.discourse-cdn.com/v4/letter/n/cc9497/32.png) [@Naetdogg](https://community.electricforum.com/u/Naetdogg)
#### Post date: [April 28, 2018, 9:34pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/6 "2018-04-28T21:34:16Z")

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To see if its coming from the temp sensor try unplugging it. First turn off master disconnect switch on lower dash then unplug the sensor then turn the disconnect switch back on. Observe if its still sparking.

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### Author: ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)
#### Post date: [April 28, 2018, 9:34pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/7 "2018-04-28T21:34:36Z")

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After switch is turned off but before the clunk?

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### Author: ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)
#### Post date: [April 28, 2018, 11:38pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/8 "2018-04-28T23:38:00Z")

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Take the motor apart and check for stuck brushes. Also check the commutator for shorts to the shaft.

In a message dated 4/28/2018 5:20:34 PM US Eastern Standard Time, [electricforum@discoursemail.com](mailto:electricforum@discoursemail.com) writes:

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### Author: ![DougieFresh](https://avatars.discourse-cdn.com/v4/letter/d/71e660/32.png) [@DougieFresh](https://community.electricforum.com/u/DougieFresh)
#### Post date: [August 14, 2020, 1:51pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/9 "2020-08-14T13:51:44Z")

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Did you ever resolve this? I have the exact same arcing happening on my 2015 E4. I disconnected the temp sensor to give room to replace a bad speed sensor. When I connected the temp sensor it started arcing right away. Only arcs when connected.

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### Author: ![earami](https://avatars.discourse-cdn.com/v4/letter/e/ed8c4c/32.png) [@earami](https://community.electricforum.com/u/earami)
#### Post date: [August 14, 2020, 4:35pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/10 "2020-08-14T16:35:35Z")

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Not yet. I talked to mechanic for GEM he stated it was normal.

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### Author: ![DougieFresh](https://avatars.discourse-cdn.com/v4/letter/d/71e660/32.png) [@DougieFresh](https://community.electricforum.com/u/DougieFresh)
#### Post date: [August 14, 2020, 5:31pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/11 "2020-08-14T17:31:43Z")

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Did you do the temp jumpier the other user suggested? Looks like he suggested to just connect the two sensor wires ahead of the connector to create a loop.

Let me know, I’m not comfortable driving it with it sparking the way it does!

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### Author: ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)
#### Post date: [August 14, 2020, 9:10pm UTC](https://community.electricforum.com/t/2015-e6-motor-arching/13620/12 "2020-08-14T21:10:55Z")

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unplug the connector and jumper the 2 wires on the harness connector . dont do anything with the motor one . Test it . If it still happens you have stuck brushes and will have to service the motor .
