It’s past time to have all these plugs replaced and I got three estimates but they’re pretty far off. My (previous) mechanic admittedly isn’t a Jeep (or HEMI) guy so I may have to just take her to the stealership. Can someone tell me approximately what this should cost? (I’m on the California...

The engine was misfiring just a few weeks ago but not enough for the CEL to come on. Big Zaddy starts and idles just fine and misfires around 35-45 mph. I purchased a set of NGK Iridium IX spark plugs and ENA ignition coils and took her on a test drive. Within a mile she started misfiring badly...

Hello everyone. First post. I have a 2009 Commander V6 3.7 With 158510 miles. I was barely getting any power as I would accelerate from a stop. CEL came on, checked the codes and got Ignition Coil misfire in 5 and 6. I replaced all my spark plugs(since it was time anyways) as well as the 3...