Heading down Route 81 to the Rally from upstate NY. Pushing the engine a bit to get up the hills:
Check engine light came on. Few miles later warning message came on saying in 85 miles speed would be in limp mode at 5mph due to def issue. (do not have exact words). Pulled into next rest area near Bristol TN. Tried adding DEF even though half full. Did not help. Looked up nearest Ram dealer, Friendship Automotive in Bristol TN. Drove there and the checked the codes. The SCR system --- emissions had to be replaced. Includes the catalytic converter and sensors.
The tech said that there was a service bulletin on this. We looked on line and there was a recall on the engines but not listed on our truck. Service guy said there were doing a few a week a one point. I am not sure what years are included.
The people at dealer some of the nicest people I have dealt with in a long time. Even though they are not set up to work on RVs (no lifts or pit) they said they would fix it. They ordered the parts, let us camp in their lot overnight, pulled the RV into their car service building because it had the highest door and used floor jacks to work on it. They also fixed the water pump recall and the shift recall while they had it. We were back on the road 24hrs after pulling in.
There was no charge for any of this as it was covered under warranty.
Notes:
In the spring I was pushing the engine going through some mountains and the check engine light came on. It was coincident with some very rough roads so I figured a sensor just hiccuped. I watched it and after a few starts when away. Since similar load on engine may have been a warning I should have checked out.
Not sure how long the emissions warranty is on the trucks but if you have to pay for this yourself the catalytic converter cost is around $2200.
I searched on line a bit and found discussion of this issue. This is a link to one of the recalls.
https://www.chrysler.com/universal/w...ce/pdf/S87.pdf
Would like to find the service bulletin on this.