Hey i am new on this forum but I thought I would pose a question for all who are knowledgeable. I have a 2006 ram 5.9l turbo and I am having a sporadic whining noise when my turbo spools up. The noise sounds exactly like a loose ground wire whine through your stereo but it doesn't happen all the time which leads me to believe that its something to do with my turbo or elsewhere. If any of you have any knowledge of where to start my troubleshooting I would appreciate it.

 

altanator wine ! have your alt and battery checked

 

since you have a cummins you may get a better/more helpful response in the diesel section: https://dodgeforum.com/forum/dodge-cummins-diesel-88/

good luck