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2016 whine on initial acceleration

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Old May 2, 2019 | 05:36 PM
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2016 whine on initial acceleration

Have a relatively high pitched whine that sounds like it's coming from the turbo/fuel filter area only on initial acceleration and only when truck has been able to cool down for quite a while or sat overnight. Goes away right after initial acceleration and cannot get it to duplicate noise. Truck was salvaged and my body shop guy and myself put it back together. Had 30k on it when we got it. Have 50k now, started this a few weeks ago, turbo seems to function appropriately and builds 20+lbs of boost according to the gauge. Recently towed my 30ft long enclosed trailer with a full house worth of stuff in it 1000 miles to Arkansas from Wyoming, so if the turbo was going out, I figured it would've let go there. Completely stock. First oil change I used motorcraft 10w-30, been using LE 5w-40 the last two. Checked fuel filter o-rings and what not, seems to be good. Any tips or suggestions would be much appreciated, thank you.
 
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Old May 8, 2019 | 04:23 PM
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Are you sure the noise isn't coming from the fan clutch?
 
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Old May 8, 2019 | 09:00 PM
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Originally Posted by thomabb
Are you sure the noise isn't coming from the fan clutch?
No im not 100% sure, but I will look into that.
 
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Old May 9, 2019 | 08:58 AM
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Keep in mind... It could be the transmission forward pump having difficulty. Check tranny fluid and on the next service, have them check/replace the filter and check the magnet for excessive debris.
 
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Old May 9, 2019 | 05:32 PM
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Originally Posted by Batman7777
Keep in mind... It could be the transmission forward pump having difficulty. Check tranny fluid and on the next service, have them check/replace the filter and check the magnet for excessive debris.
I did the last service on the transmission @ 34k miles, have been checking fluid around once a month, seems fine, but I have had a few weird shifts occasionally, but the 6R140 is kind of known for that I thought. Maybe I'll change out the fluids sooner than later on it. Thank you for your input.
 
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Old May 9, 2019 | 08:14 PM
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Do you have an auto stethoscope? With truck idling, check the center of the alternator pulley and do the same with the power steering pump.

— Dave
 
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Old May 10, 2019 | 03:09 PM
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Originally Posted by Djosbun
Do you have an auto stethoscope? With truck idling, check the center of the alternator pulley and do the same with the power steering pump.

— Dave
I don't, but have been eyeing one for some time, probably time to pull the trigger on it, wouldn't hesitate taking it somewhere, but it sucks paying a bunch of money for diagnosis and half the time they don't change the right part, then it starts getting more expensive.
 
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Old May 11, 2019 | 10:02 AM
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You don't need a stethoscope. You can use a long screwdriver or wood shovel handle. Put one end tight up under your ear lobe and touch the other end to what you want to listen to.
 
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Old May 14, 2019 | 01:52 AM
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That'll do the trick too, hope to get off work and back home here sometime next week, find out more about what's making the noise when I get there. Thank you all for your input
 
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