Wind down sound after acceleration - Diesel Forum - TheDieselStop.com
'99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the '99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

 
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post #1 of 3 (permalink) Old 10-11-2019, 08:50 AM Thread Starter
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Wind down sound after acceleration

This sound started last week. Only happens after the engine is warm. The warmer the engine the louder the sound. Happens after letting off on the gas. You can hear it in this video.

https://youtu.be/30yaRrdFZbo
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post #2 of 3 (permalink) Old 10-11-2019, 11:54 AM
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You can hear mine do that too. In my case it is the turbo spooling down and it is accompanied by a faint whistle. I kinda like it, sounds a little like a big rig. Not sure but it may have got louder after I removed the insulation from the CAC tube.


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Brian, Tucson, Arizona
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post #3 of 3 (permalink) Old 10-12-2019, 10:33 PM Thread Starter
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It just started and gets louder the longer it runs. It sounds like it's coming from the turbo and out through the exhaust.
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  Diesel Forum - TheDieselStop.com > 1999-2007 Ford Super Duties > '99 & up 7.3L Power Stroke Engine and Drivetrain

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