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Old 08-08-2012, 05:04 PM
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Noise at idle

Installed h&s over the weekend and noticed today that when it is idling it sounds like the egr or something is opening and shutting every once in a while. Runs fine and drives fine. But it did it twice in five minutes

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Old 08-08-2012, 06:58 PM
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do you still have the 08 or are you referring to a new 6.7?
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Old 08-08-2012, 07:07 PM
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I have both but I am referring to my new 6.7 that I just cleaned up the exhaust on

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Old 08-08-2012, 07:33 PM
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are you sure it wasnt your a/c compressor cycling?
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Old 08-08-2012, 09:40 PM
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It's not the EGR or AC compressor. It's the turbo veins opening and closing. Not really sure what the purpose is, but it sounds cool. It likely has done this since new, just couldn't hear it through the dpf and whatnot.

Nothing to be concerned about. My truck does it all the time at idle. Setting in the driveway or stopped at a redlight. Sorta sounds like a 6.0 with a straight pipe for a sec or two then goes away.
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Old 08-09-2012, 05:42 AM
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It does sound kinda cool I just wasn't sure if somehow something was screwed on my egr and tuning wasn't right

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Old 08-09-2012, 03:50 PM
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Quote:
Originally Posted by spderjhn View Post
It does sound kinda cool I just wasn't sure if somehow something was screwed on my egr and tuning wasn't right

Sent from my SCH-I500 using AutoGuide.com App
It's your afterburner waiting to be unleashed....Enjoy!
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Old 08-09-2012, 05:03 PM
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Could it be the wastegate?
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Old 08-09-2012, 07:34 PM
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Quote:
Originally Posted by Andrew010 View Post
It's not the EGR or AC compressor. It's the turbo veins opening and closing. Not really sure what the purpose is, but it sounds cool. It likely has done this since new, just couldn't hear it through the dpf and whatnot.
^ This ^ No need to be concerned.
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Old 08-10-2012, 11:24 AM
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Quote:
Originally Posted by Andrew010 View Post
It's not the EGR or AC compressor. It's the turbo veins opening and closing. Not really sure what the purpose is, but it sounds cool. It likely has done this since new, just couldn't hear it through the dpf and whatnot.

Nothing to be concerned about. My truck does it all the time at idle. Setting in the driveway or stopped at a redlight. Sorta sounds like a 6.0 with a straight pipe for a sec or two then goes away.
Correct, VGT veins cycling. Sound kind of like a Jet or a Blow Dryer.
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