2015 V runs poorly after engine swap.

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by scott Kampfer, Jul 5, 2025 at 4:50 PM.

  1. scott Kampfer

    scott Kampfer New Member

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    after swapping engines the car run's poorly. is the flywheel timed?
     
    #1 scott Kampfer, Jul 5, 2025 at 4:50 PM
  2. 2015V-BadHG

    2015V-BadHG New Member

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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 at 9:46 AM
  3. rjparker

    rjparker Tu Humilde Sirviente

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    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 at 10:28 AM
    Brian1954 likes this.
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