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Old 12-20-2015, 03:03 PM
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Spark Plug suggestions

Greetings,
I am glad that I found this forum, it is always good to have a place to seek answers to any issues that may come up or get good ideas and suggestions on modifications. I have a 04 Grand Cherokee now, I have owned it for a little over a year now. This is my fourth Cherokee. I had a 1979 Golden Eagle, which I wish I still had, a 1976 Cherokee Chief and a 93 ZJ Country.I believe that Jeep made the best and original SUV.Anyways, I recently upgraded to a K&N Cold Air Intake and I noticed a gain in power and improved gas mileage.I want to change the plugs next and I was curious to hear some suggestions from you guys.I have the 4.7 liter V-8, Quadra-Drive.I was thinking either E3 or Bosch Platinum Plus or NKG Power plugs.Any recommendations would be appreciated.I was also considering some type of tuner too.I appreciate any feedback.

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Old 12-21-2015, 10:49 PM
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Re: Spark Plug suggestions

Not sure if i answered you in an other thread already, but the standard 4.7 engine does best with standard copper core plugs. For some reason it doesn´t like the fancy platinum plugs. I have run Champion, Bosch and now NGK copper cores and they all perform(ed) well.
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Old 12-22-2015, 07:46 AM
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Re: Spark Plug suggestions

Cool,thanks for the suggestion
I appreciate it.I think you helped me out before when I had a issue.with my power windows.I will run the standard copper plugs.Happy Holidays
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