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Hesitate and shiver

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Ashaq Qurbankiel, Aug 16, 2018.

  1. Ashaq Qurbankiel

    Ashaq Qurbankiel New Member

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    Can anyone help i bought 2010 Toyota prius new generation, about a month ago it is done 137k, now when i give acceleration up hill then hold the acceleration at the half press level it hesitate and engine shiver, a mechanic told me to replace air filter and spark plugs, i did but it is still the same
     
    #1 Ashaq Qurbankiel, Aug 16, 2018
  2. bisco

    bisco cookie crumbler

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    welcome!

    could be dirty throttle body, oxygen sensors, egr circuit and intake manifold. does she burn any oil?

    possibly a weak battery cell causing the engine to work harder.

    start by checking for trouble codes with tech stream. if none, read through gen 3 maintenance and troubleshooting threads for clues.

    all the best!(y)
     
    #2 bisco, Aug 16, 2018
    Mendel Leisk likes this.
  3. Grit

    Grit Senior Member

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    Fuel filter.
     
    #3 Grit, Aug 16, 2018
  4. Ashaq Qurbankiel

    Ashaq Qurbankiel New Member

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    Thanks for your suggestion, but there is no light on the dashboard to indicate the issue
     
    #4 Ashaq Qurbankiel, Aug 17, 2018
  5. Ashaq Qurbankiel

    Ashaq Qurbankiel New Member

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    Thanks i was talking to the mechanic about the fuel filter, but he said the car has only been driven 137k so it can't be, plus no code light on the dashboard
     
    #5 Ashaq Qurbankiel, Aug 17, 2018
  6. bisco

    bisco cookie crumbler

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    sounds like you're sool then.:unsure:
     
    #6 bisco, Aug 17, 2018
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    When I search the Repair Manual for "hesitation", this is the first hit, in the troubleshooting section:

    upload_2018-8-17_9-56-36.png

    I'd start with the easiest, maybe Throttle body cleaning (@NutzAboutBolts has a video on that, pinned at top of 3rd gen maintenance sub-forum), and cleaning the Mass Air Flow sensor (MAF sensor). Use MAF sensor cleaner, it says it on the can, nothing else. CRC make one, and there's YouTube video on how to do it.

    I'd second all @bisco's suggestions, with the miles you have the EGR in particular is probably getting clogged. Again, see the aforementioned @NutzAboutBolts thread for EGR cleaning.

    Have the plugs been changed; it was due at 120K miles IIRC.
     
    #7 Mendel Leisk, Aug 17, 2018
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  8. Ashaq Qurbankiel

    Ashaq Qurbankiel New Member

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    Thanks good suggestions yes spark plugs have been replaced,
     
    #8 Ashaq Qurbankiel, Aug 17, 2018
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  9. Grit

    Grit Senior Member

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    Fuel filter can go bad sooner than 137K. You believe what mechanics says? :ROFLMAO:
     
    #9 Grit, Aug 18, 2018
    Raytheeagle and jerrymildred like this.
  10. jerrymildred

    jerrymildred Senior Member

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    If it happened suddenly, and you'd recently bought gas, that would scream "fuel filter." If you hadn't just bought gas, that doesn't rule out the filter, but it does open up the other options.
     
    #10 jerrymildred, Aug 18, 2018
  11. Pdaddy

    Pdaddy Member

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    Did you solve the issue?

    SM-G960U ?
     
    #11 Pdaddy, Feb 10, 2021
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