2017 Freightliner Cascadia gets hot when in optimized idle mode.

Discussion in 'Freightliner Forum' started by LakenT, Jun 12, 2024.

  1. LakenT

    LakenT Bobtail Member

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    Jun 19, 2022
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    I have noticed recently on one of our trucks that when the truck is in optimized idle the temp gets to almost 250. Is there a setting in ddl for this for fan clutch. Anybody had this problem before? Truck is a 2017 Freightliner Cascadia with a dd13 engine and dt12 trans. We have the parksmart apu system.
     
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  3. QUALITYTRUCK

    QUALITYTRUCK Road Train Member

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    Completely power wash both sides of radiator, then report back.
     
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  4. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Is the fan coming on? Yes, the ECM is already programmed to engage the fan when temp is reached.

    If the fan is coming on, @QUALITYTRUCK has your answer

    Be very gentle with a pressure washer or you'll bend your fins
     
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