2015 V runs poorly after engine swap.

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by scott Kampfer, Jul 5, 2025.

  1. scott Kampfer

    scott Kampfer New Member

    Joined:
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    Location:
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    Vehicle:
    2015 Prius
    Model:
    Five
    after swapping engines the car run's poorly. is the flywheel timed?
     
    #1 scott Kampfer, Jul 5, 2025
  2. 2015V-BadHG

    2015V-BadHG New Member

    Joined:
    May 19, 2025
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    Location:
    Portsmouth NH
    Vehicle:
    2015 Prius v wagon
    Model:
    Three
    My first question is about the long block you swapped in.
    Where did you get it?

    Runs, idles poorly as its misfiring?
    Has no power?

    I'd pull plugs to see what they tell you.
    Put a old fashioned vacuum gauge on it to see how it fluctuates.

    Pete
     
    #2 2015V-BadHG, Jul 7, 2025
  3. rjparker

    rjparker Tu Humilde Sirviente

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    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Most of the time it's a disconnected pcv or vacuum hose or sensor. Some are hard to see.

    It is essential to accurately describe the issue when seeking free internet advice.
     
    #3 rjparker, Jul 7, 2025
    Brian1954 likes this.
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