Overheating ACERT

Discussion in 'Trucks [ Eighteen Wheelers ]' started by TA63, Aug 4, 2012.

  1. TA63

    TA63 Bobtail Member

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    Oct 28, 2010
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    How hot are ACERTS supposed to run? Just recently, when working hard my BXS has started to operate at temps around 220 and performance suffers. For the previous few years it was uncommon for it to move much past 200. I just cleaned the radiator, intercooler, and AC condenser. Any ideas?
     
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  3. Bush chook

    Bush chook Light Load Member

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    Geelong
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    Thermostats or coolant diverter valve
     
  4. Worthken

    Worthken Light Load Member

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    Delmas South Africa
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    How many miles on the motor? Could be water pump or thermostats. When last was an overhead done?
     
  5. TA63

    TA63 Bobtail Member

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    Oct 28, 2010
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    Overhead was done about 15k ago. Engine has almost 600k total.
     
  6. Junkyard Johnney

    Junkyard Johnney Light Load Member

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    Plains,Mt
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    It really could be something simple like a plugged muffler, if you are going to put fuel and air in it you got to be able to get it out
     
  7. Superhauler

    Superhauler TEACHER OF MEN

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    keep stroking.
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    check for a cac leak or boot leak since you just had them cleaned that will cause it to heat up and performace to suffer also.
     
  8. snowwy

    snowwy Road Train Member

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    i find that 2 brands of oil causes my engine to run at 210 with the fan. loss of power and fuel mileage.

    another brand that i stick with now. runs at 175 no fan. better performance and fuel mileage
     
  9. Cat sdp

    Cat sdp . .

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    Orion's Belt
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    Mind naming the brands? Local cat dealer gave me crap for not using cat oil, and their recommending using 10w30 in the acerts!
     
    Last edited: Aug 5, 2012
  10. Mr. Haney

    Mr. Haney Road Train Member

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    You have to realize the thermostats don't open fully until 198*F and the fan doesn't come on until 217*F. Is the fan running constantly? It could be as simple as the gauge isn't reading true. If the fan is on constantly while the gauge is reading 220*F than I'd say you have a cooling issue or you're working the truck hard and the engine is producing heat
     
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