Whiteymin
Junior Member
I bought a new 2021 Ram 1500 Big Horn. Has 5.7 Hemi (non-etorque) with 3.92 rear end. Has towing package. I been having what seems like an issue. I posted this on another forum but it has slid way down board and I had new information and was hoping someone could decipher it. I’ve read about the droning nose, ANC, MDS etc. it doesn’t seem to be those by things recommended to try. Ok after driving today, I confirm the hum is at 2000 rpm and 50-57 mph. Once I hit 58 mph it goes away or if I drop below 50mph it goes away and or if RPM Drop or rise above 2000 rpm it goes away. It is kind of a hum/vibration. It sounds like it’s turning. It hums and fades then hums again then fades in a rhythm kinda way My wife has heard it once but otherwise states she cannot hear it so I think I may be feeling it through steering wheel and pedal but I feel like I hear it. While it was doing it today I tried switching to nuetral and no difference. I hit gear minus on steering wheel and no difference, I hit tow/ haul mode button and no difference. It stays. If I let my foot off gas pedal the hum goes away. ANC is bypassed Why would it just be limited to this RPM range and speed range and not be present if outside of those ranges? Could it be exhaust or muffler related ??? Or maybe it’s not an issue at all and just characteristic of the truck. The truck is very powerful. Doesn’t feel like anything is wrong with it except this Anyone have any ideas?
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