Vibrations and hum noises

[Rjezonie]

Anyone else noticing vibrations/hum noises when in the 1300-1500 or so range? It’s more noticeable when the exhaust is turned off when everything is supposed to be quieter. Read elsewhere that Ram trucks have issues with MDS and wondering if that’s the cause?
Either way this sound/vibration effect is TERRIBLE!

 

[grim]

Anyone else noticing vibrations/hum noises when in the 1300-1500 or so range? It’s more noticeable when the exhaust is turned off when everything is supposed to be quieter. Read elsewhere that Ram trucks have issues with MDS and wondering if that’s the cause?
Either way this sound/vibration effect is TERRIBLE!

Have you noticed if it’s operating in 4 Cyl mode (on dash) when the noise/vibration occurs? My 392 does the same thing when in 4 Cyl mode. It’s rather irritating.

 

[Rjezonie]

Yup! Most of the time it’s in 4cyl mode or about to go into that mode. I’m with you on the irritating part…so is my wife haha

 

[Rjezonie]

Have you noticed if it’s operating in 4 Cyl mode (on dash) when the noise/vibration occurs? My 392 does the same thing when in 4 Cyl mode. It’s rather irritating.

Apparently we aren’t the only ones.

Vibrations when running on 4 cylinders

Have about 500 miles on the 392 now and was noticing some odd vibrations on the highway when cruising. It would come and go and I couldn't figure it out until I was sitting on the Fuel Economy screen. Every single time it went down to 4 cylinders, the vibrations would start. When it went back to...

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