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  1. Problems / Dealer Service
    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...
  2. New Member Section
    Hey Everyone, New around here (I've lurked, but haven't posted yet...you've all already helped me more than I can express.) Recently purchased a 2007 XK 3.7 with QTi that wouldn't start, I replaced the fuel pump and got her to fire up, but she's not happy. Good news is I don't hear anything...
  3. New Member Section
    Hey everyone, I am new here and a new Jeep owner. I recently bought a 2007 Jeep Commander Limited 4.7L 4WD Flex Fuel with 240,000 miles on it. I love it and it was driving just fine. I got it at auction and it needed headlights, bumper and fender. Got all that replaced and it passed inspection...
  4. Diagnostic Trouble Codes (DTC)
    I have a problem that started all of the sudden without warning. Suddenly about a month ago , my 06 commander 3.7 , upon acceleration the CEL started flashing and the engine was clearly misfiring. Maintaining speeds it does not do it . Only during acceleration. At the same time this happens...
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