jleamont Report post Posted September 8, 2018 5 hours ago, Afordeck said: Update. Just took my coach to Cummins for oil change. They discovered carbon deposits on exhaust gas sensor tube (Rapid City changed the sensor twice) and a leaking valve cover where they cracked a fitting. Plan on mailing them pictures, but I doubt they will feel much of a need to respond. Delta P tubes? Very, very common place for carbon to build up and shut you down. Share this post Link to post Share on other sites
