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  1. NUGNUG

    2018 2500 6.7 Cummins Fan Clutch

    Hi. I'm hearing an odd faint noise in the engine compartment kind of like a whistle. I grabbed one of the blades on my fan and pushed lightly toward the radiator, then pulled lightly toward the engine. There is slight movement of the fan on the shaft/clutch. Should there be any play in the...
  2. NUGNUG

    2018 RAM 2500 6.7 Cummins coolant fan cycling on and off a lot

    Cummins 12V98. I think your truck is 20 years older than mine base on your handle.
  3. NUGNUG

    2018 RAM 2500 6.7 Cummins coolant fan cycling on and off a lot

    Thanks AH64ID
  4. NUGNUG

    2018 RAM 2500 6.7 Cummins coolant fan cycling on and off a lot

    The engine/coolant fan on my 2108 2500 6.7 (18k miles) seems to be cycling on and off when it is not really needed. For instance, it runs when I start the vehicle after sitting for days. While driving it'll cycling on and off at ambient air and coolant temperatures when I would not expect it to...
  5. NUGNUG

    2018 2500 Cummins hissing/air noise

    Thanks kthaxton. I'll check that too.
  6. NUGNUG

    2018 2500 Cummins hissing/air noise

    Thank you.
  7. NUGNUG

    2018 2500 Cummins hissing/air noise

    Could this happen at idle?? Thanks
  8. NUGNUG

    2018 2500 Cummins hissing/air noise

    I bought this truck new in 2018 and this is the first time my wife or I ever heard this noise. It's quite loud. If it's the exhaust brake, something broke in it. Thanks .
  9. NUGNUG

    2018 2500 Cummins hissing/air noise

    It's not the normal exhaust brake sound I'm used to hearing when driving and slowing down. This noise it at idle as far as I can tell.
  10. NUGNUG

    2018 2500 Cummins hissing/air noise

    I have a 2018 2500 Cummins with only 17k miles on it. The other day, while waiting in line for fuel, a hissing sound started out of the blue coming from the engine bay somewhere. The truck has not thrown a code. It seems to only happen when the truck is at operating temperature, I do not hear it...
  11. NUGNUG

    2018 2500 Cummins hissing/air noise

    I have a 2018 2500 Cummins with only 17k miles on it. The other day, while waiting in line for fuel, a hissing sound started out of the blue coming from the engine bay somewhere. The truck has not thrown a code. It seems to only happen when the truck is at operating temperature, I do not hear it...
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