07 freightliner century showing fault code Sht Lo 128 257 04?
Check engine light stays on, truck run normal!
- MarkLv 77 years agoFavorite Answer
there is a big truckers site called " truckers report " go there and ask people that own them . more likely you get an answer there than here.
- tanja3703Lv 67 years ago
Are you using your regen frequently? That was the code that came up when my filter for the regen was dirty and it wasn't working properly.