lonnieg5962
Active Expediter
been in contact with detroit deisel service center.([email protected] 313 592 5800) ESTHER VAUGHAN senior advisor. recieved a case # and was instructed to go trough my local detroit autherized repair center. and there regional manager. to recieve help. Still playing email and phone tag. They say thay want to help me. No results yet. I do know however the cooler has a new part #. and MRS VAUGH said that the check valve would not fix egr cooler problem. good luck to any one else with this problem. LONNIE