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Old 10-10-2012, 08:03 AM
farmall farmall is offline
Dodge Ram Forum Junior Member
Join Date: Feb 2011
Location: Huddleston, VA
Posts: 44
Gender: Male
Vehicle: 2003 3500 QC diesel
Trim Level: SLT
Color: Patriot blue
Engine: 2001-2003 359ci (5.9L HO) Cummins ISB 24-Valve Diesel I6 245hp 505lb/ft (6-Speed Manual)
Rep Power: 0
farmall is on a distinguished road
Default Why does my 03 cummins idle so high some times?

Good morning all,
I have noticed that my 2003 cummins has been idling high for a while. It has 212000 miles on it and I have noticed that sometimes it idles as high as 1200 rpms. I am just concerned that this might be a symtom of something that needs attention. The truck runs flawlessly.

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