[Brady]

if this posted twice I apologize, we just purchased a 2007 Nitro 3.7l 4x4 with 200k miles, it runs great . We are gonna do a tune-up and replace a couple switches in the doors. Wondering if the coils need to be replaced every time you replace plugs or only as needed. thanks

I saw post about the copper vs platinum plugs, glad I checked here first

 

[Scar0]

I have yet to replace my coil packs in my 3.7. No issues with them.

 

[Brady]

I have yet to replace my coil packs in my 3.7. No issues with them.

Thank you for your response. I just purchased my nitro and have to do some serious maintenance. I'm glad this forum is here to ask questions and better yet, to receive answers.