JRB Posted July 14, 2013 Report Share Posted July 14, 2013 I have a 2008 Edge with the 3.5L Engine that has been misfiring. I just recently changed out all the coil packs, spark plugs and intake gasket. That seemed to work for about a week and then it started misfiing again. The engine light does not come on and a local garage nor a local dealership has been able to tell me what is the problem. They both have run diagnostics and scans. The History: The first time I had this checkd out by a local garage, they found one of the cylinders dropping off while I was driving it with the guy in the vehicle with me with a computer hooked up to it.. I changed that coil and it worked great for about a year. Then it started misfiring again. I again took it back to the same garage and they were unable to determine which cylinder was misfiring. So I decided to give the dealer a shot and let them run a diagnostic on it. The only thing they could find was where I had left something unplugged where I had changed the plugs. So I put another set of plugs in it and that did not fix it. DOES ANYONE HAVE ANY IDEA? THANKS! Quote Link to comment Share on other sites More sharing options...
thirdgenlxi Posted July 14, 2013 Report Share Posted July 14, 2013 More than likely needs a PCM..... and 6 coils and plugs. Hopefully you didn't burn your cat converter up Quote Link to comment Share on other sites More sharing options...
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