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06 Freightliner noise question

Discussion in 'Trucks [ Eighteen Wheelers ]' started by casharp, Mar 30, 2013.

  1. Mar 30, 2013 #1
    casharp

    casharp Bobtail Member

    17
    4
    Feb 23, 2013
    0
    Hi guys,

    we ended up buying the 06 Freightliner with the 60 series Detroit 14L. Haven't pulled a load with it, just drove it home. Runs good and strong no problems. There seems to be more noise than there should be, like turbo roaring through the mufflers. Any way to cut down the noise? Also, I cranked it in the yard and the check engine light came on. Motor sounded great for a few seconds, then the light went off and the roar was back. Any opinions on what causes the noise and what to do to reduce the noise?
    One other question; on the drivers side of the engine is what I think is the ECM. It's a thin square box with an electrical plug on each end. It has a stud with a nut on each corner. Is this the ECM? We're going to send it off for a tune and want to be sure it's the right part.
    Thanks again for all the advice and opinions before we bought the truck. It sure helped.
     
    Last edited: Mar 30, 2013
    casharp, Mar 30, 2013
    casharp, Mar 30, 2013
    #1
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  3. Mar 31, 2013 #2
    freightlinerman

    freightlinerman Road Train Member

    1,287
    536
    Mar 4, 2011
    Florida
    0
    Freightliners are loud, get used to it. Roaring nose? Sound's normal, the VGT turbo has a nice personality. The ECM is located on the drivers side of the engine near the starter. You may also consider purchasing a USED ECM on ebay or else where and keeping your current ECM in case something goes wrong with the new one, you will still be able to drive the truck.

    YOu should get in touch with rebel127, he can do all the tuning you need on this forum. Good luck.
     
    freightlinerman, Mar 31, 2013
    freightlinerman, Mar 31, 2013
    #2
  4. Apr 3, 2013 #3
    salt shaker

    salt shaker Bobtail Member

    4
    1
    Apr 3, 2013
    Oklahoma
    0
    the check engine light you are getting should be the EGR system. I had a similar problem with my 06 14L. It was the delta pressure sensor and then the VPOD (variable pressure output device/turbo controller). I changed the sensor and the VPOD. No problems since. If that repair hasn't been done on that truck before it will be. As for the sound. I added 2 gallons of lucas to the engine and 2 gallons to the transmission. Motor and trans operate smoother and quieter. turbo wine can be caused by the vpod. get it checked. turbo for that motor is $2875 part only. Experience from my other 06.
     
    salt shaker, Apr 3, 2013
    salt shaker, Apr 3, 2013
    #3
  5. Apr 3, 2013 #4
    silver dollar

    silver dollar Medium Load Member

    481
    211
    Jan 31, 2009
    Central North Carolina
    0
    Will Lucas mix with synthetic gear oil with out any side affects?
     
    silver dollar, Apr 3, 2013
    silver dollar, Apr 3, 2013
    #4
  7. Apr 4, 2013 #5
    casharp

    casharp Bobtail Member

    17
    4
    Feb 23, 2013
    0
    Thanks for the answer. The light only comes on when the truck is first started (and not every time) and goes off when the truck is revved up. Good point about the lucas, will do that.
     
    casharp, Apr 4, 2013
    casharp, Apr 4, 2013
    #5
  8. Apr 5, 2013 #6
    grump

    grump Light Load Member

    74
    29
    Jan 1, 2011
    PA
    0
    I had a cel when cranking engine and no start tried again cel came on then engine started got the flash codes and said crank sensor out of wack so i replaced it and cam sensor , after that no more trouble with this.
     
    grump, Apr 5, 2013
    grump, Apr 5, 2013
    #6
  9. Apr 5, 2013 #7
    Semi Crazy

    Semi Crazy Road Train Member

    3,033
    2,046
    May 13, 2011
    Middle Tennessee
    0
    Those new trucks are so loud the truck stops now sound like you're on the deck of an aircraft carrier.
     
    Semi Crazy, Apr 5, 2013
    Semi Crazy, Apr 5, 2013
    #7
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