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My NEW used truck SUX !!!!

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 2hellandback, Jul 14, 2013.

Page 1 of 3
  1. Jul 14, 2013 #1
    2hellandback

    2hellandback Heavy Load Member

    978
    236
    Dec 19, 2007
    Blackfoot Idaho
    0
    Holly sheet 5 mpg hamer Idaho to burns wy and burns wy. to Harrisonville MO. and and 230 miles of that was running with an empty trailer !!!! dam it ! Tell me what to do guys,,,, try to solve the problem or run it off a cliff and collect the insurance ?

    2007 386 pete 475 cummins with active egr and cummins road relay 4, 13 speed 3:55 rears and 22.5 low pro tires......

    and its a dog to boot ,feels like 375 hp
     
    2hellandback, Jul 14, 2013
    2hellandback, Jul 14, 2013
    #1
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  3. Jul 14, 2013 #2
    leftlanetruckin

    leftlanetruckin Road Train Member

    3,607
    3,158
    Mar 12, 2009
    Mo Via Blackpool,Lancs.
    0
    Its an emission ISX, so not surprising to me.
    Only way to get power and MPG from an ISX is to get rid of the emission stuff, from the guys I know with them.

    Martin
     
    leftlanetruckin, Jul 14, 2013
    leftlanetruckin, Jul 14, 2013
    #2
    MNdriver and landstar8891 Thank this.
  4. Jul 14, 2013 #3
    BullDoggin

    BullDoggin Light Load Member

    183
    56
    Jan 27, 2013
    0
    check for boost and exhaust leaks, shut off that EGR, VGT could be working improperly

    How fast were you driving? Weight? Type of trailer?
     
    BullDoggin, Jul 14, 2013
    BullDoggin, Jul 14, 2013
    #3
  5. Jul 14, 2013 #4
    Hardlyevr

    Hardlyevr Road Train Member

    3,270
    2,532
    Jul 30, 2009
    Mapleton Depot,PA
    0
    you might have a bad turbo, just replaced mine on my '07 ISX and fuel mileage jumped way up. What they call the sector gear that engages the variable part of it stops meshing correctly. Mine had 580K on it when I replaced it.
     
    Hardlyevr, Jul 14, 2013
    Hardlyevr, Jul 14, 2013
    #4
  7. Jul 14, 2013 #5
    2hellandback

    2hellandback Heavy Load Member

    978
    236
    Dec 19, 2007
    Blackfoot Idaho
    0
    65-66 mph, refer 14,500 empty and 79,280 loaded..... Best manifold reading ive seen is 21-22 and digital boost reading best has been 23
     
    2hellandback, Jul 14, 2013
    2hellandback, Jul 14, 2013
    #5
  8. Jul 14, 2013 #6
    2hellandback

    2hellandback Heavy Load Member

    978
    236
    Dec 19, 2007
    Blackfoot Idaho
    0
    What did that set you back?
     
    2hellandback, Jul 14, 2013
    2hellandback, Jul 14, 2013
    #6
  9. Jul 14, 2013 #7
    power freak

    power freak Light Load Member

    220
    60
    Apr 23, 2009
    0
    Sounds like it might have a boost leak with those low pressure readings
    does it have a check engine light on?
    I would check out the basics before you start throwing parts at it if the check engine light is on that needs to be takin care of first. Also a valve adjustment wouldn't hurt if you don't know when it was done last.
     
    power freak, Jul 14, 2013
    power freak, Jul 14, 2013
    #7
  10. Jul 14, 2013 #8
    2hellandback

    2hellandback Heavy Load Member

    978
    236
    Dec 19, 2007
    Blackfoot Idaho
    0
    the check engine light has come on a 2-3 times ... I added some antifreeze as it was about a gallon low but not sure that was the problem any way.I do plan on a leak test soon.

    OH and that is the amber check engine light.
    And over head was done about a month ago when they relpaced the injector cam and egr valve.
     
    Last edited: Jul 14, 2013
    2hellandback, Jul 14, 2013
    2hellandback, Jul 14, 2013
    #8
  11. Jul 15, 2013 #9
    gbrown

    gbrown Light Load Member

    55
    8
    Jul 25, 2011
    riverside ca
    0
    Before you bought it did you put it on a dyno?
     
    gbrown, Jul 15, 2013
    gbrown, Jul 15, 2013
    #9
  12. Jul 15, 2013 #10
    Hardlyevr

    Hardlyevr Road Train Member

    3,270
    2,532
    Jul 30, 2009
    Mapleton Depot,PA
    0
    A little over $4K at a Cummins shop.
     
    Hardlyevr, Jul 15, 2013
    Hardlyevr, Jul 15, 2013
    #10
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