Freight Train
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New User
Joined: Jan 2008
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From: Bonney Lake, Washington
Freight Train
When towing a heavy load, my 6.4 at times begins to ROAR like a freight train. Its not just the normal noise from the turbo's. It sounds like a huge vacuum leak. Sound familiar to anybody??? Don't get any fault codes so I'm guessing its normal... Thanks, Greg
Elder User
Joined: Feb 2006
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From: Central Massachusetts
Yes, 
thought a jet was landing on my trailer towing up the hills in the Poconos. Surprised it only came on about 6 times towing in 90* weather last summer. Thats a good thing when it comes on to keep the Motor cool.
thought a jet was landing on my trailer towing up the hills in the Poconos. Surprised it only came on about 6 times towing in 90* weather last summer. Thats a good thing when it comes on to keep the Motor cool.
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Joined: Jun 2007
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From: Land O Lakes, Fl.
I am from the Lake Wallenpaupack area and will be going up there next month. Any trouble finding ULSD up that way?
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New User
Joined: Jan 2008
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From: Bonney Lake, Washington
Thanks for the quick responses guys. I've made several runs pulling 14k trailer over the passes in Wa. This was the first time I heard this noise...I'd be surprised if any fan can make this noise... I'll keep an eye on the error codes and update. Thanks, Greg
Junior User
Joined: Aug 2006
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Its the Coooling Fan
Trust Us! It is without a doubt the cooling fan. Shocked the heck out of me the first time I heard it. It is definately the cooling fan.
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From: Central Massachusetts
Last year I passed a couple of BP stations off of 84 that had USLD. Filled at Port Jervis, NY on the Boarder was the best price
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Elder User
Joined: Jan 2006
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From: Tucson, AZ
It is the fan! When that baby kicks on it is most definitely like a jet engine and you can't not notice. Last summer towing 20k all over AZ in 100-120* heat it would kick on occasionaly but certainly not as much as I would think it should. 70-75 mph, A/C on, 20k behind it, 120* heat and its not even getting hot enough to keep the fan on. I think that is pretty good.
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Joined: Mar 2006
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I have only had the fan kick on a couple of times out of several hard pulls in Oregon Nevada and California pulling 14-16k.
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Joined: Nov 2004
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From: town near el paso tx.
Mine overheated
Last week while work hours I was pulling my 2000 pounds trailer in 8 grade hill and my truck overheated 
. On memorial weekend went to the forrest pulling my Rv (10500 pounds) and she lost power. Also from 0 milles to 30 vibrates. My 4x4 failed. It stuck in 4x4 low. To finish on my way home, my truck ran about 70 milles in regeneration. she drank about 3/4 tank of diesel in only 70 milles. I'm very frustatde. I really miss my 99 f 250.
Elder User
Joined: Feb 2006
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From: Central Massachusetts
Last week while work hours I was pulling my 2000 pounds trailer in 8 grade hill and my truck overheated . On memorial weekend went to the forrest pulling my Rv (10500 pounds) and she lost power. Also from 0 milles to 30 vibrates. My 4x4 failed. It stuck in 4x4 low. To finish on my way home, my truck ran about 70 milles in regeneration. she drank about 3/4 tank of diesel in only 70 milles. I'm very frustatde. I really miss my 99 f 250.
. Sounds like you should start a new thread
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Joined: Aug 2007
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From: Forest Grove, Oregon
It is the fan! When that baby kicks on it is most definitely like a jet engine and you can't not notice. Last summer towing 20k all over AZ in 100-120* heat it would kick on occasionaly but certainly not as much as I would think it should. 70-75 mph, A/C on, 20k behind it, 120* heat and its not even getting hot enough to keep the fan on. I think that is pretty good.
