Vibration noise at 1500 RPMs

[Abern17]

My truck has a rattling/vibration noise at 1500 rpms. 2019 ram 2500 limited with the Cummins. Any ideas where to start? Almost sounds like a heat shield or an exhaust rattle or something. If anyone had something similar and found a fix I’m willing to try.

 

[flan]

What gear? Any at 1500 rpm? Or one specific?

 

[Abern17]

What gear? Any at 1500 rpm? Or one specific?

Seems to be all gears. Sometimes it doesn’t do it at all. I’m leaning toward it being a heat shield rattling on something and nothing mechanical. But really not sure.

 

[flan]

Will it do it at 1500 in park?

 

[Abern17]

Will it do it at 1500 in park?

I think it does but much quieter. That or it doesn’t do it at all.

 

[flan]

That could be helpful for diagnosis. Get under there on a creeper and have someone rev it to 1500.

 

[Abern17]

That could be helpful for diagnosis. Get under there on a creeper and have someone rev it to 1500.

I did that. All I heard was engine noise. I don’t think it’s transmission related as I’ve tried all gears and can’t figure it out. Sometimes it happens sometimes I don’t hear it for weeks. It’s freaking weird

 

[Abern17]

That could be helpful for diagnosis. Get under there on a creeper and have someone rev it to 1500.

I do have a extended warranty but afraid if I take it in for vibrating heat shields it would be a waste of money

 

[Abern17]

Will it do it at 1500 in park?

It does not make the noise in park. Seems to only make the noise while in gear and doesn’t matter which gear.