Advice, Reocurring Chk Eng Lgt & DDEC Report Issues w Frlnr Casc

It depends on the terms of the buyers assurance. Does it say that you can switch it for another truck if not satisfied?
You need to bypass the salesman, he doesn’t want that truck back.

 

1st step hire an attorney.

Does your sales contract have a restocking provision?

Good luck

 

That's a LOT of idle time for a DD13. I wouldn't be surprised if it's on it 3rd or 4th one box. (One box holds all the filters the sensors plug into, basically a big catalytic converter, kinda).

A new one box installed from the dealer would fix your issues for a while, sounds like the current one is plugged, and baking it probably won't help.

That might be a compromise with the dealership to get you on the road.

Another major issue that will raise it's head probably right after you get out of warranty will be injectors and cylinder liner glazing from all that idle time. Diesels are designed to run at load most of the time. AT 750K miles, if not sooner, you'll have huge blowby and will be needing an inframe.

 

You need to get a copy of the D Dec report. I think it will show the regen history. You may be able to use it in negotiations for another truck.
I would be surprised if the seller didn’t have to do a regen to clear codes.

 

The code is for high DEF delivery. It’s using a lot of DEF fluid.
Says it could just need a software update.
Could be poor DEF quality.
Could be the DEF injector/pump.
Could be the SCR catalyst is worn out.