Noise at idle

[spderjhn]

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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[travisH3]

do you still have the 08 or are you referring to a new 6.7?

[spderjhn]

I have both but I am referring to my new 6.7 that I just cleaned up the exhaust on

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[biggins]

are you sure it wasnt your a/c compressor cycling?

[Andrew010]

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.

[spderjhn]

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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[Senderofan]

Originally Posted by spderjhn

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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It's your afterburner waiting to be unleashed....Enjoy!

[TrickTruck]

Could it be the wastegate?

[Bjolls]

Originally Posted by Andrew010

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.

[H&S Support]

Originally Posted by Andrew010

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.