I cannot say enough good things about the Caterpillar field service personnel I've used. See "Cat 242D event alarm clear procedure" post . All diagnosis pointed to a faulty DPF sensor. However, after diagnosis, a continuity check was performed and clearly something wasn't right. A service bulletin was found (which was circulated withing CAT service personnel only) describing the issues, and the resolution... replace the entire wiring harness. My service folks did this to remedy a factory defined issue which I feel should have been a recall item... but it was an expensive out of pocket repair for this owner. Service folks were very courteous and really knew the equipment but couldn't get management to step up to cover a machine with 1800 hours. I'm not really angry, but am certainly disappointed that Cat didn't stand up for a known deficiency.
