dirty Coolant isx cm2250

[cjcool]

Not at all neglected , goes in the shop all the time , DPF was replaced 6 month ago in Fresno, most sensors replaced, EGR cleaned (according to Pete) we maintain it as good as possible once a week all cods read and attended to. Thats why we are surprised it would have that amount of build up. There are no codes at all pertaining to any of this , not EGR/DPF/ nothing. we did the pressure difference ... nothing , no leak into the EGR, no leak at the dosing unit. Thats why we also believe its the oil cooler not the EGR. we dont want Peterbilt to just exchange the EGR and not fix the problem.I also figured oil cooler , but Peterbilt insists on EGR cooler. we also tested the Trany exchange cooler ...its solid.