I’ve 2009 International Durastar 4300 Dt 466 Maxxforce . Problems I’m having with my Solid yellow PDF light.
Comes on after driving the truck fir 20-40 min on the highway or city roads, and won’t turn off until I shut the truck off. Then the cycle continues 20-40 min driving back on and won’t turn off until I turn the truck off. Also it’s in Regen mode while the solid light is on. I tried to to Parked Regen and no luck . Any advice?
Thanks for reading