I change fuel and oil filters every oil change, use rotella syn oil and make every effort to get top tier fuel with high turnover stations. Quality maintenance intervals and products just need to be a habit, as well as quality fluids. There's plenty out there running untuned for years with nary a problem, most local dealers here don't see them as frequently as we make it out in our heads. Even still my work wasn't covered under warranty, and it seems there's a lot of loop holes that they use. Prior to my trip to the dealer there was no warranty work done aside from some faulty 4wd actuator. It must have been a foreman truck or site truck in a fleet, maintenance was good, but it has a TON of idle hours on it. With 300k on it the 5.9 intake was embarrassingly cleaner than this. Now onto the pics.i had a 5.9 Cummins before this and I can't believe they convinced themselves this is a good idea. Figured at first it was in my head but drove around a bit to get some fresh fuel cycled in and it definitely has a bit more snap in around town driving than before. On a side note, I'm not sure if it was the battery disconnect or map cleaning but I did notice bit of difference in the way it drove around town. I don't mind maintaining the truck, but this is a bit ridiculous.
Really hoping this thing doesn't turn into a headache. Dealer has been great to use but is backed up pretty bad so I tried to eliminate the easy things first to see if it continues. No lights, no drivability issues just a weird shudder at idle. I'll be doin the gde tune when I can afford, fingers crossed this rectified my issue. The pic of the map sensor is a good indication, use your imagination. I know the EGR TUBE being cleaned doesn't do much but I wanted to see the status in my upper intake. I suspected that the fuel I got was crap, so I tossed in a bottle of de-emulisifier, disconnected the battery and pulled the tube and sensor. Went to autozone and grabbed some cleaners, some VP additive and got to it. Between 130* to about 175* than the symptoms disappear once to SOT. Fast forward to the past couple days and I've been getting a weird rough idle, almost misfire feeling when truck is warming up. Granted the light was from a bad exhaust temp sensor it still left me feeling uneasy with hearing these stories of failures. So after having my truck at the dealer for over a week for the Service Electronic Throttle Control message I'm trying to make sure I'm 100% on top of this truck.
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