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Old 12-15-2021, 02:40 PM   #1
DMA
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Join Date: May 2014
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Cummins loud noise

New owner of a preowned Nexus Ghost and Cummins 2020 6.7. 11k miles.
On the drive back first trip, I have no idea what the "normal" engine sounds should be. Pulled out of a rest stop accelerating. Sounds like a jet engine taking off. RPMs and shifting seemed right. Went away after about 3 minutes.
What's that roar? Fan going on and then off?
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Old 12-15-2021, 02:44 PM   #2
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Yup, the cooling fan CAN really be loud.
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