I have a slight stumble while idling and driving. I changed the plugs (91,000 miles). It have the V6 and it is almost like a miss. I can't figure it out, any ideas?

 

What year is the Durango? Do you have access to a scan tool that can check for pending codes and monitor sensors real time (data stream)? If so, checking for pending misfires and monitoring the short and long term fuel trim values may help guide you to if this is likely an ignition issue or a fueling issue.

Do you happen to have an oiled, reuseable air filter? I've only had the V8 Mopars so I'm not sure if the V6 has a MAF sensor that might be contaminated. Often that will start out by causing a decrease in fuel economy but might contribute to a stumble if it gets bad enough.

-Rod

 

Sorry forgot to include that, it's a 15. I did change the filter to a KN after this all started. I use AlphaOBD and according to it there are no misfires or pending codes. This all started by throwing a cylinder 3 misfire and the plugs were bad .65 gap when it's suppose to be .43. Fuel trims looked good but I'll check again. It's really weird it didn't do it under hard acceleration. The RPMs drop a little then it might not do it for a little bit or might do it right after.