Engine Sound Difference

JR. · 07-03-2008, 11:25 AM

Do you guys notice the sound difference in the automatic vs. the standard. The auto sounds like a 12valve. The standard, or atleast mine sounds like a ticker. It just doesn't sound like that deep engine rattle? Is it because of the transmission / torque converter loading the engine slightly?

__________________
2007.5 6.7l 3500 Dually Lone Star Edition 4x4 6-Speed. S&B C.A.I. H&S Stage II/Pressure Box. E.G.R. unplugged! EGR Cooler Removed

CFNibertCC · 07-03-2008, 01:07 PM

Straight pipe it and it will sound beautiful with EB in towhaul

__________________
07 3500 C&C 6.7Aisin,4X4, omaha 10'fb, RC boxes, airbaffle? DPF? EGR & Cooler? bells? whistles?

01 2500 CTD 4X4 4" TBE 96 3.4L V8Taurus SHO

***slagburn*** · 07-03-2008, 01:44 PM

Haven't noticed anything between auto and manual but there is a sound difference (more rattling) between regen and and no regen even at idle due to the EGR being shut off during a regen cycle.

__________________
07.5, 6.7, Auto, QC, 4x4, Lots of gauges - ISSPRO (Pyro, Boost, Trans Temp) PriCol Optix (Fuel Pressure Lift/Rail) AutoMeter (Oil Pressure) - Dynatrac Free-Spin Hub Conversion Kit - RETRAX bed cover - homebrew shaved bluetec badge - plugged up EGR - Baldwin BF1212 water separator and CAT 1R0750 fuel filter - MSD Dashhawk - Baldwin B164 Bypass Filter

JR. · 07-03-2008, 03:02 PM

Well, Ok....I just know that mine sounds totally different from other autos....don't know about the standards like mine...Mine is just so much quiter...and I don't like it....lol Yeah, I am getting a delete kit when I get the money.

__________________
2007.5 6.7l 3500 Dually Lone Star Edition 4x4 6-Speed. S&B C.A.I. H&S Stage II/Pressure Box. E.G.R. unplugged! EGR Cooler Removed

smoke46 · 07-03-2008, 08:41 PM

Quote:

Originally Posted by JR.

Well, Ok....I just know that mine sounds totally different from other autos....don't know about the standards like mine...Mine is just so much quiter...and I don't like it....lol Yeah, I am getting a delete kit when I get the money.

Did both deletes and sounds good, from the exhaust and from under the hood. Dont have the EGR opening and closing changing the sound of the engine.My Brother-in-jerk (I mean law)

has a Mega cab automatic and it does sound a little different idling than my standard does. Also, the MP-8 changed the sound of mine. It seems like it may clatter a tiny bit, like a 12 valve. Not much though.

07bighornCTD · 07-05-2008, 11:03 AM

yes i also noticed a difference. my first 6.7L was a manual ang it was much quieter and didnt sound as smooth or have that deep rattle. the manual was aticker like u said. i dont know i thot it mite of had sumthing to do with all the problems i was having with the first one since it lived in the service dept. LOL i was kinda surprised by this and liked it since the new one is the auto.

__________________
2005 5.9L cummins 48re auto 4x4 quad cab long bed, black/silver!!: just purchased w 23k miles!!

07-03-2008, 11:25 AM	#1 (permalink)
JR. Cummins Enthusiast Join Date: Dec 2007 Location: Victoria, Tx Posts: 223 JR.'s Truck Pics	Engine Sound Difference Do you guys notice the sound difference in the automatic vs. the standard. The auto sounds like a 12valve. The standard, or atleast mine sounds like a ticker. It just doesn't sound like that deep engine rattle? Is it because of the transmission / torque converter loading the engine slightly? __________________ 2007.5 6.7l 3500 Dually Lone Star Edition 4x4 6-Speed. S&B C.A.I. H&S Stage II/Pressure Box. E.G.R. unplugged! EGR Cooler Removed

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07-03-2008, 01:07 PM	#2 (permalink)
CFNibertCC Cummins Enthusiast Join Date: Nov 2007 Location: Springfield, Ohio Posts: 289 CFNibertCC's Truck Pics	Straight pipe it and it will sound beautiful with EB in towhaul __________________ 07 3500 C&C 6.7Aisin,4X4, omaha 10'fb, RC boxes, airbaffle? DPF? EGR & Cooler? bells? whistles? 01 2500 CTD 4X4 4" TBE 96 3.4L V8Taurus SHO

07-03-2008, 01:44 PM	#3 (permalink)
*slagburn* $.02 Contributor Join Date: Oct 2007 Location: Los Angeles / OC Posts: 1,640 slagburn's Truck Pics	Haven't noticed anything between auto and manual but there is a sound difference (more rattling) between regen and and no regen even at idle due to the EGR being shut off during a regen cycle. __________________ 07.5, 6.7, Auto, QC, 4x4, Lots of gauges - ISSPRO (Pyro, Boost, Trans Temp) PriCol Optix (Fuel Pressure Lift/Rail) AutoMeter (Oil Pressure) - Dynatrac Free-Spin Hub Conversion Kit - RETRAX bed cover - homebrew shaved bluetec badge - plugged up EGR - Baldwin BF1212 water separator and CAT 1R0750 fuel filter - MSD Dashhawk - Baldwin B164 Bypass Filter

07-03-2008, 03:02 PM	#4 (permalink)
JR. Cummins Enthusiast Join Date: Dec 2007 Location: Victoria, Tx Posts: 223 JR.'s Truck Pics	Well, Ok....I just know that mine sounds totally different from other autos....don't know about the standards like mine...Mine is just so much quiter...and I don't like it....lol Yeah, I am getting a delete kit when I get the money. __________________ 2007.5 6.7l 3500 Dually Lone Star Edition 4x4 6-Speed. S&B C.A.I. H&S Stage II/Pressure Box. E.G.R. unplugged! EGR Cooler Removed

07-05-2008, 11:03 AM	#6 (permalink)
07bighornCTD Cummins Fanatic Join Date: Nov 2007 Location: morgantown, IN Posts: 100 07bighornCTD's Truck Pics	yes i also noticed a difference. my first 6.7L was a manual ang it was much quieter and didnt sound as smooth or have that deep rattle. the manual was aticker like u said. i dont know i thot it mite of had sumthing to do with all the problems i was having with the first one since it lived in the service dept. LOL i was kinda surprised by this and liked it since the new one is the auto. __________________ 2005 5.9L cummins 48re auto 4x4 quad cab long bed, black/silver!!: just purchased w 23k miles!!