Prius 2012 V Strange Engine Sputter during Acceleration?

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by TroubleTony, Jun 15, 2022.

  1. TroubleTony

    TroubleTony Junior Member

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    I’ve recently had the engine swapped out for my Prius V, but have lately ran into an issue of the engine sputtering during acceleration at both low and high speeds. My MPG seems to be the exact same but the noise (video attached) is very loud at high acceleration and only happens occasionally.
    I almost had a heart attack thinking my cat was stolen but that’s not the case.
    I’m at a lost any suggestions?
     
    #1 TroubleTony, Jun 15, 2022
  2. bisco

    bisco cookie crumbler

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    take it back to the swapper?
     
    #2 bisco, Jun 15, 2022
  3. TroubleTony

    TroubleTony Junior Member

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    I'm planning on calling tomorrow morning but I'm unsure if they would consider it their issue just because it could be something relating to emissions system.
     
    #3 TroubleTony, Jun 15, 2022
    bisco likes this.
  4. bisco

    bisco cookie crumbler

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    did they clean the egr circuit properly?

    how many miles on this engine?

    is it a quality shop? do you think the put the proper plugs and etc in? vleaned the throttle body and maf?
     
    #4 bisco, Jun 16, 2022
  5. Air_Boss

    Air_Boss Senior Member

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    Various systems need to learn (or re-learn) your driving style.
     
    #5 Air_Boss, Jun 16, 2022
  6. BiomedO1

    BiomedO1 Senior Member

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    While I agree with you in principle; it shouldn't stumble like that while relearning.

    Was this a quality rebuilt engine or just a used engine; you swapped into the Prius? Do you know it's a good engine or did you just take someones word for it? Check the oil and coolant levels - there may just be a loose connection/wire somewhere.
    A friend of mine had the top-end of her engine redone. We were going on a long trip, so I just did a quick once over. Got a couple of blocks when I noticed the cruise control wasn't working. Unplugged it, sprayed the connectors and pushed them back in. Didn't have an issue on the 1500 mile circuit.
     
    #6 BiomedO1, Jun 16, 2022
  7. Air_Boss

    Air_Boss Senior Member

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    I didn't 'hear' (or feel) the stumble in the video, so...
     
    #7 Air_Boss, Jun 16, 2022
  8. bisco

    bisco cookie crumbler

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    I couldn’t really hear it either
     
    #8 bisco, Jun 16, 2022
    rampante550 likes this.
  9. PaulDM

    PaulDM Active Member

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    Same
     
    #9 PaulDM, Jun 16, 2022
  10. Tim Jones

    Tim Jones Senior Member

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    Get rid of it............................................
     
    #10 Tim Jones, Jun 17, 2022
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