Caterpillar c12

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by truckerbangin, Apr 3, 2020.

  1. truckerbangin

    truckerbangin Light Load Member

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    Good day all got a Freightliner fld112 with a cat c12 but it runs like a slug. It’s my first cat truck so don’t know there issues or what gets them to go
     
  2. Brettj3876

    Brettj3876 Road Train Member

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    You check all the basics? Fuel filters, air filter, boost leaks. Can't help ya anymore than that. Someone who knows cats will help

    What year engine, what rears and trans? If your coming out of a 500hp + big bore the 12L isn't gonna feel like your used to
     
    Dino soar and Shawn2130 Thank this.
  3. wtokhi

    wtokhi Light Load Member

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  4. truckerbangin

    truckerbangin Light Load Member

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    C12
    Esn 9NS03129
     
  5. truckerbangin

    truckerbangin Light Load Member

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    Will check intercooler on Monday but everything else is ok. It has 3.73 rears in it. It runs nothing like a Detroit 12.7
     
  6. Brettj3876

    Brettj3876 Road Train Member

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    @SAR or @spsauerland might be able to help.

    Mileage and what hp does the engine tag say?
     
    Shawn2130 Thanks this.
  7. truckerbangin

    truckerbangin Light Load Member

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    Who is a great cat guy to get ecm fixed
     
  8. Chubby Fly

    Chubby Fly Medium Load Member

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    Mine puls like a raped ape. Eh, maybe its becase i threw a 500+hp tune on it and added the diesel freaks boost harness on it to top it off
     
  9. wtokhi

    wtokhi Light Load Member

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    what do u mean by slug? always? sometimes? what are the symptoms
     
  10. Chubby Fly

    Chubby Fly Medium Load Member

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