Sketchy? Shop diagnosis and fix

2011 cascadia dd15, 450k

Took tuck toshop for def light flashing and turning off 3 times 2 weeks, limp mode 2 times in a week. Regen turned light off and 100%.

They quoted me over $12,000 to repair this. I declined and bobtailed back to my LP, to trade in for brand new truck.

500 miles here, no lights, no codes, drove fine.
Having second thoughts thinking they just wanted the money. I told them i think its jump the pump going or lines have a blockage.

REPAIR: 6 new injecters , one box, pump and some other stuff.

btw, this truck has only been in the shop for def related, a few harnesses later, 2 new injectors last year, new acm, new dpf 80k ago, dozer 200k told was ok....


Or should i just trad it in and get new under warranty?

 

pic of work order

 

idk what all they did, was in shop about 6 hours and i took it in limping at 55 with light flashingso nothing shoulda cleared.

 

its due for oil change, maybe thats the smoke.

 

Headed to a new shop tomorrow for at least a new dozer. Im gonna pull the pump lines to see if the filters clogged, after i shut it off the spray sounds like its suffocating. It did have the eec61 on dash. 545 25 f1, eng 0