Delayed reaction from reversed jumper cables

Tiny
PAUL THOMPSON
  • MEMBER
  • 2004 DODGE CARAVAN
  • V6
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
About a month and a half ago, my friend called, asked me for a jump.

I went over, it was dark, he had one side, I had the other, I asked him to make sure they were right, he said they were, but sure enough there was a spark shower. Connection was only made for a second. Fixed the wires, my car still started, got him going, everything seemed kosher, I went home.

In retrospect, some strange things started happening, that I just assumed were issues with an older car that I was not used to or familiar with.

That week or the next, there was an instance or two where I either was not shifting right or getting enough power, but they passed and did not repeat.

The next two weeks, the back hatch started opening intermittently.

About two weeks ago I was driving, and my battery light came on, and my car slowly quit running. Could not get it going again, assumed alternator, assumed because it was old, and we had a super cold snap.

But now I am wondering if it was from the jump.

Anyone have thoughts on ECU damage from reversed cables starting small and slowly escalating?

Anything at all really.
Monday, January 22nd, 2018 AT 4:48 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,256 POSTS
Hello,

Yes this is weird can we run the codes to see what come up? Here is a guide.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Wednesday, January 24th, 2018 AT 12:42 PM

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