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Old 07-21-2013, 06:24 AM
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Howling Noise

I have a 2008 F250 diesel with 80,000 miles. About 2 week ago i started to hear a howling noise at 1,000-1,500rpm's. The new noise would continue for about 20 seconds then disappear. Recently it started to get more frequent. No loss of power but it seems to go into regen more often. The truck is out of warranty without any aftermarket parts. Sounds to me like it is coming from the turbo but I am not sure. It doesn't sound like a whine but more like wind howling.

Last edited by JNyzz; 07-22-2013 at 08:57 AM.
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Old 07-22-2013, 08:54 AM
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Is it a growly kind of sound? Might just be your fan clutch engaging.

And I'm just going to assume you meant 1,000-1,500 RPM. Either that or you're pushing your diesel way too hard.
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Old 07-22-2013, 09:19 AM
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I have the same noise (howling) when my truck is running. I believe the noise is coming from the muffler after looking the truck over. Mine happens as soon as I start the truck. I haven't worried too much about it, I am going to install a new exhaust soon. Hope this helps.
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Old 11-13-2013, 08:54 PM
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fuel cooler/turbo actuator cooler low on coolant. There is a little coolant resevoir to the right of your turbo actuator. Top it up, then on the turbo actuator there is a 5/16 hex key bleeder. take that off and top it up with coolant as well. this should stop fix your problem.
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Old 11-25-2013, 09:42 AM
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Had kinda the same sound as you with the exception that it would make a little "screech" and quit making the howl noise. Sound would come back. Turned out to be the High Pressure Turbo. The bearing was loose and the wheel was rubbing inside the housing. Maybe something to think about
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Old 11-25-2013, 09:46 AM
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Nate was correct with the above post. Thx
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