Have a 2006 Dodge Durango. 96000 miles. Regular maintenance. Idling rough, excessive vibration and loss fo power on acceleration. Check engine light flashed at 2500 rpms. Check engine light stays on, but code reader reports no codes.

Have you checked into the problem being the PCM? Had those same issues with my 06 Durango at about the same mileage (just a little higher, actually) and after exhausting every other possibility (changed air filters, transmission filters/fluids, spark plugs, fuel pump, etc.), replaced the PCM. Seemed to solve the problem. DIY alert, though: the PCM, while a plug & play type part, is a BEAR to get out! Very time consuming and you'll possibly throw a tool or two in frustration before you get it done.

I would do a tune up and this should fix your problem, i think the coil packs are around $30 a piece, you can just replace the spark plugs first, then if needed the coil packs. Hope this helped Tim