Dec 29, 2008 · Did not understand what happened. DEF was bad (low quality) ? but that truck stop has good reputation and they are high volume def and fuel seller. or because of heavy rain I had water …

Jul 2, 2021 · Does anyone have any insight into the current DEF sensor shortage at Navistar? My 2019 International LT with Cummins X15 has been running great, but DEF sensor in tank (often called …

Jun 27, 2017 · Poor Def Quality SPN 3364 FMI 2 DD15 Cascadia EVO 2014 Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by farooqmali, Jan 23, 2018.

May 5, 2021 · So here i sit yet again with a max derate on my new pete after yet another dealer claimed they fixed it, (8 and counting at this point) So far i have had the whole system pulled and cleaned by …

Aug 18, 2017 · Bad DEF quality and Nox sensor ? Check engine lights but they come and go Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by Sekhri, Aug 18, 2017.

Jan 25, 2021 · Def Quality issue Paccar MX13 Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by CrimsonPatriot, Jan 25, 2021.

Feb 12, 2011 · DEF level/quality sensor replace on 2021 Pete O/OP w/sleeper. (w/pics) Discussion in ' Trucks [ Eighteen Wheelers ] ' started by Deezl Smoke, Jul 9, 2023.

Dec 7, 2017 · HEADER DEF QUALITY SENSOR for 2015 Freightliner Cascadia Discussion in ' Heavy Duty Diesel Truck Mechanics Forum ' started by DaTruckerMan, Jun 14, 2024.

Jan 22, 2021 · Def sensor? There's isn't a def sensor. It checks quality by when it doses. Also that code won't clear after a regen def only sprays after a regen going down the road. So it won't check quality …

Apr 19, 2019 · A low DEF warning or bad DEF quality fault is almost never the real problem, both of those things very rarely happen. NOX sensors can be faulty, as well a several other things. In my …