Should I replace dpf filter when changing out Doc?

[Nhramember]

(12-04-2022 )tree98 Wrote:  Don't buy aftermarket, buy OEM only. Did you have those flow tested by a dealer? What engine do you have? Maybe a doser injector problem too?

I have a Cummins isx15. I took it to a cleaning shop and they stuck these lil straw things into the doc . They wouldn’t go through it in certain spots. They said it collapsed in certain places and said it needed to be replaced. I had a bad egr cooler I replaced this summer and not sure how long it was bad. The dpf was pink and I cleaned it when I did the egr. I probably should have changed them at that time. They saying it’s faceplugged and kept getting the shutdown dpf filter full code. Thursday and Friday after forced regens.