Having throttle problems when pulling heavy load

Discussion in 'Volvo Forum' started by Volvodan, Sep 3, 2021.

  1. Volvodan

    Volvodan Bobtail Member

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    Sep 3, 2021
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    Im having problems when im pulling up hills my rpms start surging up and down when im flooring the gas pedal but when I barely press it the truck drives fine I changed fuel filters air filters had injectors done last year I have a code MID 130 PSID 27 FMI 12…. But the code comes and goes only when I floor the gas pedal I know it’s for the clutch in the transmission also I have no check engine light any body had this problems can you help me out transmission is a IShift
     
    Last edited: Sep 3, 2021
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  3. Magoo1968

    Magoo1968 Medium Load Member

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    Mar 18, 2021
    St Malo mb
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    If your rpms are going up and down but speed and gear you’re in remain the same clutch is toast.
     
  4. Volvodan

    Volvodan Bobtail Member

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    Sep 3, 2021
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    Yeah everything stays the same just rpms goes up and down but it seem like I’m loosing boost also when I’m climbing
     
    Last edited: Sep 3, 2021
  5. nasriza

    nasriza Road Train Member

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    Feb 1, 2013
    Chicago, IL
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    the code that you have coming up is for clutch systems something might be going on from there but it depends they have to check clutch life on it and operation everything can be done with ptt, also need to check if there is any excessive oil leaks in the back of the engine have had oil get in the clutch and cause same problems as this, what are the miles on the truck and did anyone check the clutch before, is there any messages coming up to check transmission system on the vehicle.
     
  6. Volvodan

    Volvodan Bobtail Member

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    Sep 3, 2021
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    I do have a oil leak around that area and I never got a check transmission warning and I have 753208 miles on the truck but sometimes the truck would go to “L” mode when I put change to drive I would have to turn off the truck and restart it to go back into “e” mode but that haven’t happened in a while
     
  7. nasriza

    nasriza Road Train Member

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    Feb 1, 2013
    Chicago, IL
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    without hooking up ptt and seeing what codes r there and what is going on from clutch system its very hard to say.
     
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