One box issues

There's about a dozen of them on Truckpaper, they're not cheap anymore either, some want more than they were new for one. I saw a half a dozen 359s running down I29 between Sioux Falls and Sioux City in the last week, a few cabovers too. They're out there working yet.

 

So replace the SCR then, it's only money. You aren't wrong about fleets screwing up even a solid truck.

 

True, you can't control what the previous owner did (or didn't do) to a truck but you can weed out the trucks that weren't properly maintained. Costs a few bucks and time to pull up Rig Dig reports, have oil analysis run, maintenance records checked and a mechanical inspection/dyno run done but it can save you from buying a worn out truck.

By the sounds of it, you paid a fair price for what you have. A sub-$25k truck is cheap because its on the threshold of needing major work.

 

Are you getting fault codes when the parked regen fails to complete? Are you getting SCR NOx conversion efficiency faults? I thinking your engine is probably a 15 liter but post last six of VIN for more accurate information.

 

Never buy a modern truck that has high idle time and did not have an apu from the start. Have a DDEC report pulled and it will give the run history of the engine
Hard brake, average speed and hundred other useful data logs.
The DD15 will do regens going down the road. I have owned 7 DD15’s from 2014 until now. They are a solid engine but I buy new and apu’s are put on my trucks before put in service.

That doesn’t help you. But sounds like you didn’t do your do diligence and throughly inspect and investigate the truck and pull samples and dyno runs, yes expensive for a candidate truck but a hell of a lot cheaper than what your spending now. Used fleet trucks are an absolute NO NO!. they follow the rule of breakdown maintenance and spend as little as possible to get the turd to turn in time. Meanwhile 30 billy big riggers have scuzzed it down the road and run the living dog #### out of it. Good luck

 

This might be worth a shot before you go and spend almost 10K for a stupid metal box

Get It Refurbished - Starting at only $999 - One Box

 

Gotta remember what's ahead of the aftertreatment - the engine. If it's not healthy you'll usually see those issues manifest in the aftertreatment first. Seen a few aftertreatment systems replaced because of engine problems.