Weird noise after dpf delete - Ford Powerstroke Diesel Forum

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post #1 of 7 Old 07-28-2012, 06:53 PM Thread Starter
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Weird noise after dpf delete

Just wondering if anyone else had heard a weird noise coming from the exhaust after a dpf delete. Almost sounds like a grinding noise right after getting on it a little, and worse as soon as I shut it off. I don't know how to explain the noise.

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post #2 of 7 Old 07-29-2012, 04:21 AM
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is there anyway you can make a video and post it. A grinding noise doesnt sound right. The hairdryer sound is normal, and the whistle at shut down is normal, but a grinding noise....

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post #3 of 7 Old 07-29-2012, 07:44 AM
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Should whistle on shutdown for about 5 seconds sounds like your turbo might be going

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post #4 of 7 Old 07-29-2012, 09:56 AM Thread Starter
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How can I post a video? I don't know if it can be heard from a video or not. I sure hope the turbo isn't going the truck only has 50k on it, only about 200 tuned. Its not so much a grinding as it is almost the exhaust releasing pressure. It just has a bit of a rattle to it for probably, as you said, 5 seconds our so after shutting it off. Is there a way to know for sure if my turbo is going out? And I'm assuming its a cab off job to replace?

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post #5 of 7 Old 07-29-2012, 10:48 AM
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It could be turbo bark when you are getting on it, it is normal but not good on turbos, and the whistle at when you turn the truck off is the turbo spooling down and realeasing pressure. Sounds like its normal to me, but the word grinding is still a word that is scary....

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post #6 of 7 Old 07-30-2012, 08:48 AM Thread Starter
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I hope you're right man. Anyway to check my turbos without tearing into it? I know I still hit good numbers anytime I'm pulling my boat or even just uphill. Its not uncommon to hit 40lb, not sure if this makes a difference.

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post #7 of 7 Old 07-30-2012, 04:26 PM
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you can check for shaft play by pulling your intake and trying to wiggle the shaft.

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