I have a 07 Dodge Dakot 4.7 V8 that has a problem that I just can't figure out. Whenever the truck warms up after driving for a bit or idling it starts acting like there is a misfire... low power, hiccups in acceleration and then the check engine light start flashing for a little while. Then sometimes it will just be perfectly normail. I changed spark plugs, ignition coils, throttle position sensor and I've taken it to two different shops with no luck. Please help!!

Have you checked for stored codes? If you've taken it to two different shops and they can't figure it out, probably a bunch of wag's on a forum wont help you out much.....try a dealer with the proper equipment.