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2019 V6 Cherokee Burning Coil Packs

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Old Jun 14, 2024 | 08:58 AM
  #1  
Deathjester's Avatar
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From: Vancouver WA
Model: Cherokee (KL)
Engine: 3.2
Default 2019 V6 Cherokee Burning Coil Packs

Does anyone have experience with this issue?
3.2 V6 77,000miles
First time was back in Feb 2024. Accelerated hard from a stop light and when I let off the peddle it started misfiring. I took it to the Dealership and they found a bad coil. (coil replaced)
Second time was back in the beginning of May, Same thing; let off peddle; misfire. It was a plug this time. (all pugs where changed then)
Third time was 2-weeks ago and it was another burned coil. (coil replaced).
This isn't right. I've never had a single car in my 45 years of car ownership and being a car nut have I ever lost a single coil. I keep telling them they need to look 'upstream' from the coils for a voltage issue, but
they are diagnostic computer jockeys and if the computer doesn't see it, it isn't happening.

What say you all?

Dj
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Old Jun 23, 2024 | 11:44 AM
  #2  
tnsr35's Avatar
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Year: 2015 & 2016
Model: Cherokee (KL)
Engine: 2.4 & 3.2
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1. you need to start looking for the issue find the electrical problem as that is what is sounds like. either you have a bad ground or you have a wire that is stripped and is possibly touching something when you accelerate fast.

or

2. you can look for a shop that deals with these types of electrical issues and be ready to pay up a pretty good penny to find and fix the issue. electrical problems are sometimes not easy to locate and can take hours to diagnose.

so it will be up to you how much you want to pay.
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Old Jul 15, 2024 | 03:36 PM
  #3  
Deathjester's Avatar
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From: Vancouver WA
Model: Cherokee (KL)
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Update:
I was correct. This was an electrical system issue and not a coil pack issue.
After the 4th trip into the dealership with a misfiring engine and the Start/Stop Warning saying that the battery was STILL charging I demanded they tear into the secondary battery and check that system....
There was indeed a loose grounding point that was arching and sending power spiking into the system.
I wish I could convey how angry I was having this go on for 6-months...
I am not very impressed with "mechanics" that know nothing of logistical troubleshooting. These "techs" have no skills without plugging into the diagnostic computers; pulling codes and doing what it says. Even when an Electrico/Mechanical Engineer of 35-years tell them they're barking up the wrong tree for months.

Anyway......
Dj
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