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Old 10-29-2007, 12:20 PM
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blocked egr and turbo whistle?

since i blocked off up pipe to egr cooler and unplugged the egr valve my truck seemed to have lost loudness of the turbo whistle...especially at idle when it used to cycle the turbo now it just stays muffled.any way to get some whistle back? i thought i was doin good bypassing the egr system??
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Old 10-29-2007, 04:15 PM
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I have the opposite problem with my truck, my wife was even telling me that it is much louder. And definatley a much deeper groan.
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Old 10-29-2007, 04:21 PM
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i see that you have the high idle mod. when i put this on my 6.0 i kinda lost the whistle starting up then cycling too. i took the high idle off and it does it now.
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Old 10-29-2007, 07:11 PM
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its on a switch so i can turn it off and on..usually off
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Old 10-29-2007, 07:16 PM
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i think i like the egr system, i feel like it has a purpose in life or it wouldnt have been there in the first place, does anyone know what it is though?
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Old 10-29-2007, 07:28 PM
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Quote:
Originally Posted by cchase View Post
i think i like the egr system, i feel like it has a purpose in life or it wouldnt have been there in the first place, does anyone know what it is though?
the EGR system is just like a gasser's egr system. it sents inert (inburnable air with no oxigen) into the cylenders at times when the computer thinks it wont be needed. If the EGR system functions properly (no sticking valves...no failed EGR coolers)....you wont EVER notice a power loss or gain from it functioning or not functioning...

the main gain by disabling your EGR system in a 6.0 is eliminating EGR cooler failures....no other realistic gains will be noticed...
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Old 10-29-2007, 07:34 PM
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thank you, Marc, Makes sence to me now!
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Old 10-29-2007, 07:48 PM
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Originally Posted by Big Mule View Post
I have the opposite problem with my truck, my wife was even telling me that it is much louder. And definatley a much deeper groan.
same here, my 6.0 sounds saaaweet.
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