Allen Maberry
Junior Member
Hello Friends, My 2005 - 2500 - 4x4 Cummins Diesel With a Automatic Transmission --- It Runs Perfect. But when you let up on the accelerator, It keeps going at the same RPM for a Quite a few seconds, And when you have it in neutral or park and rev it up to any given RPM, Then let up on the accelerator, It will hold that RPM for Quite A While, Then (Very Slowly) come back down to a idle. I am wondering, Is that a Bad Throttle position Sensor or what ? It had a New and injection pump less than 8,000 miles ago. New / Rebuilt Injectors, New Fuel tubes and Fuel Lines less than 20,000 miles ago.Thank You All.