Could you explain the oil px and circulation system of the 4L60E? I have just examined the 4th filter (drained pan change filter every 25000 Kilometers) and have noted very minor metal flaking and a brittle dark brown coloured material trapped in the filters. I am questioning the source of the brittle material as I have seen it in each filter removed. Irregular shape glossy smooth surfface one side and rough texture on other side A little history: Trans rebuilt 100000 Km ago after hard 1-2 shift, sloppy 2-3 and a slipping tq converter. Its from a '93 k1500 Suburban (OBD1) so no p1870 codes. Have not had any ses lights so no codes to pull. No shifting issues either. Trans temp while towing up 30Km/7%grade reached 255* in second gear holding steady @ 70 Km/hr (2 external coolers only) Thanks in advance Rolf
- posted
18 years ago