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Old Oct 26, 2023 | 10:09 AM
  #1  
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Engine Noise

I've got a 2022 F450 Platinum. I tow a 20k 5th wheel. At times when driving up hill the engine will start whining like the rpms are shooting up real high. But, the rpm gauge does not move nor does the turbo gauge move nor does the truck downshift. I can't figure out what is causing it to should like the rpms are shooting up. I know that is not a great description, but I hope it gives enough of a clue to help me figure out what is causing it. Thanks.
 
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Old Oct 26, 2023 | 10:12 AM
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From: Itinerant
Fan kicking on to cool the engine
 
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Old Oct 26, 2023 | 10:14 AM
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Well, that sure makes sense. Thanks. One less thing to worry about. lol
 
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Old Oct 26, 2023 | 10:53 AM
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Yes, and the fan will come on to varying degrees, depending on demand from the pcm, so sometimes it can be extremely loud.
 
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Old Oct 27, 2023 | 11:18 AM
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Thank you so very much. Now when it happens I don't have to starting checking everything to make sure nothing is amiss.
 
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Old Oct 27, 2023 | 01:44 PM
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Originally Posted by scraprat
Fan kicking on to cool the engine
Give this man a cigar...
 
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Old Oct 27, 2023 | 05:30 PM
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As already noted it's the fan, but wanted to mention that the cooling system in these trucks might be loud but they're also very capable too.
 
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Old Oct 27, 2023 | 06:10 PM
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Gottta be that turbo prop under the hood up front.
 
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Old Oct 27, 2023 | 09:39 PM
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Originally Posted by Ltngdrvr
Yes, and the fan will come on to varying degrees, depending on demand from the pcm, so sometimes it can be extremely loud.
when I'm towing over 30k with mine, moving excavators, pipes, etc. Through cities, mine sounds like a jet engine taking off for flight! It screams so loud, everyone will start looking at it. Especially when oil it at 235 degrees.
 
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