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Accert 550 egt's soaring

Discussion in 'Trucks [ Eighteen Wheelers ]' started by fatherof5, Jul 8, 2012.

Page 4 of 5
  1. Jul 12, 2012 #31
    ENR

    ENR Light Load Member

    254
    50
    Oct 8, 2009
    Ontario
    0
    I do warm things up as much as possible, I'm in a " continuous operation " which is to say just that I slipseat my truck and we run it about 18 hrs a day. So my truck is rarely cold. I can have a rough almost miss all day long in the below freezing temps. It wont go away once the truck is warmed up if the ambient temps are freezing and I'm running winter fuel. Spring though late fall she runs great.

    I wonder if Fatherof5 could be describing the same thing ?.. If it's only $600 to swap fresh VVA's in that may be something I'd consider.
     
    ENR, Jul 12, 2012
    ENR, Jul 12, 2012
    #31
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  3. Jul 12, 2012 #32
    fatherof5

    fatherof5 Bobtail Member

    47
    5
    Apr 24, 2012
    forreston, il
    0
    Hey All, truck is in the shop today and I'm waiting on diagnosis. Early speculation from tech is there's turbo issues and that's creating the high egt's. After some trustworthy advice on the ACERT delete (thanks MR Haney) and a lil' research I'm gonna leave the VVA's alone. I didn't understand the true purpose of the system, if its working properly it should increase efficiency (you were right bob1234)thanks for the replies, I'll post results in a few days.
     
    fatherof5, Jul 12, 2012
    fatherof5, Jul 12, 2012
    #32
  4. Jul 12, 2012 #33
    bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    Hey there i got a load on my wagon 45000lbs of crates on a fltbed watching egts nrmal cruzing 65mph at 1300-1350 rpm egts stay at650-700 pulling a hill they go up to 800 its very hot and humid today they have droped about 200deg but dont know if the vva did it or the wiring fix to the diverter valve turbo psi max is 52psi so assuming turbos are fine and runs very nice and smooth feels much more responsive
     
    bob1234, Jul 12, 2012
    bob1234, Jul 12, 2012
    #33
  5. Jul 12, 2012 #34
    fatherof5

    fatherof5 Bobtail Member

    47
    5
    Apr 24, 2012
    forreston, il
    0
    Hi bob1234, sounds like that tune up sure helped. I had a similar problem with the water diverter harness last year except mine melted through and gave a check engine light. So I'm thinking if yours was only looking rough without throwing any codes the drop in egt's can be attributed to the VVA's and rack being properly set. I'm hoping that's the case because I spoke with the tech today about mine and the turbos and CAC checked out OK. Next step is run rack and service the VVA's. Let me know if your mileage is any better, Thanx
     
    fatherof5, Jul 12, 2012
    fatherof5, Jul 12, 2012
    #34
  7. Jul 13, 2012 #35
    bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    Hey there just curious do they got your problem figured out
     
    bob1234, Jul 13, 2012
    bob1234, Jul 13, 2012
    #35
  8. Jul 14, 2012 #36
    fatherof5

    fatherof5 Bobtail Member

    47
    5
    Apr 24, 2012
    forreston, il
    0
    Hey all, just got the truck back yesterday afternoon and took it straight to the ethanol plant to load 'er up. Cruising empty the egt's stayed in the 700 range once loaded I could still get over 1000 but with the new tune in the ecm there wasn't any grades around here that would work it long enough to keep it that hot. Soon as you get out of the throttle it cools right down. This morning leaving the house loaded it still seemed as if the turbos would surge if ya got into it too hard, thinkin maybe I'm losing drive pressure between the manifold joints??? Who knows gettin sick of thinkin about it. Hope this may have helped someone else. Be safe & God bless
     
    fatherof5, Jul 14, 2012
    fatherof5, Jul 14, 2012
    #36
  9. Jul 25, 2012 #37
    bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    Hey tbere how is the truck running with the new tune
     
    bob1234, Jul 25, 2012
    bob1234, Jul 25, 2012
    #37
  10. Jul 25, 2012 #38
    fatherof5

    fatherof5 Bobtail Member

    47
    5
    Apr 24, 2012
    forreston, il
    0
    Hey Bob, so far so good. My mileage went from 5.8 avg to 6.45 on the last fill up. Still having issues when the boost gets over 50psi but I can live with that, what has really blown me away though is what this engine is capable of. CAT isn't giving us anywhere near the power they could. Now its kinda like driving around with half a load all the time, just step on it and go. Big fun, if ya can swing it I'd recommend it for the fun factor alone.
     
    fatherof5, Jul 25, 2012
    fatherof5, Jul 25, 2012
    #38
  11. Jul 25, 2012 #39
    bob1234

    bob1234 Light Load Member

    71
    1
    Nov 10, 2010
    brantford, ont
    0
    I am running the bully dog for about two years now and its working good i try to take it easy so it dont blow the headgasket out or fall apart i got 760000 on it i would like to get a couple of years out of it before i need to inframe it
     
    bob1234, Jul 25, 2012
    bob1234, Jul 25, 2012
    #39
  12. Jul 26, 2012 #40
    fatherof5

    fatherof5 Bobtail Member

    47
    5
    Apr 24, 2012
    forreston, il
    0
    I sure understand that, mine has 790,XXX and it would be nice to get a few more years out of it. Hey Bob, livin in Canada, can't you guys buy trucks up there without DPF's and urea?
     
    fatherof5, Jul 26, 2012
    fatherof5, Jul 26, 2012
    #40
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