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Lagging up hills

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by Robasaurus, Dec 28, 2023.

  1. Robasaurus

    Robasaurus New Member

    Joined:
    Dec 28, 2023
    1
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    Location:
    Washington
    Vehicle:
    2014 Prius Plug-in
    Model:
    Plug-in Base
    Gen 3 plug in.
    I just replaced my head gasket, and timing chain. Also replaced vvt oil sensor. recently replaced coils and plugs, but new plugs sat out while I was replacing head gasket. Car drives fine until I try to go up hills. Now it loses power and won’t go above 45 up hills. Any ideas would be much appreciated.