The check engine light has been on for no obvious reason. Took it in to the dealer and they got light to go off. After about 5 miles down the road it come back on. The last couple times I had it up in the mountains, the emissions 90% full came on. I took it to a dealer they had it for 3 days but didn't work on the problem. They were more concerned with the recalls on it. I took it back up to the mountains again, same thing happened, 90% full. I pulled off the side of the road and an old farmer stopped by, he said to run it like a john deere tractor and I did,the emissions worked its way back down, and went off.
I have no favorite. every time I have taking this truck out of town emissions full light come on. It gets pore mileage 13 mile to gal my 93 dodge truck got 21 mile to gal. My 98 dodge truck got 18 mile to the gal Now the 2008 get 13 mile to the gal and has less power then the 98 did
come up with better exhuste system. train the dealer on how to work on it.