Engine coils replaced and spark plugs driving and stops running

Discussion in 'Prime Main Forum (2017-2022)' started by Joe Wall, Sep 18, 2025 at 1:16 PM.

  1. Joe Wall

    Joe Wall Member

    Joined:
    Jan 8, 2019
    226
    45
    0
    Location:
    Wisconsin
    Vehicle:
    2009 Prius
    Model:
    Touring
    I took my prius in and the engine coil 1 was out. Replaced all coils and spark pulls. Mom took it home and stopped again while driving. It wont accelerate once driving. Any advice? Could it be one of the batteries?
     
    #1 Joe Wall, Sep 18, 2025 at 1:16 PM
  2. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
    1,986
    780
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    #2 Brian1954, Sep 18, 2025 at 1:36 PM
    Mendel Leisk likes this.
  3. BiomedO1

    BiomedO1 Senior Member

    Joined:
    Mar 27, 2021
    3,080
    1,635
    0
    Location:
    SacTown, Ca
    Vehicle:
    2021 Prius Prime
    Model:
    LE
    A man gotta know their limitations. You did your best and now it's time to take it to a professional for a proper diagnosis and fix, or you could just keep throwing parts at it. Did you put in cheap counterfeit parts? Is the problem still there because you put in bad parts or was the original parts fine and that wasn't the problem to begin with? This is why you test first - before replacing random parts......
    It's your money and your car; how soon do you need it running reliability?

    YMMV
     
    #3 BiomedO1, Sep 18, 2025 at 3:42 PM
  4. Joe Wall

    Joe Wall Member

    Joined:
    Jan 8, 2019
    226
    45
    0
    Location:
    Wisconsin
    Vehicle:
    2009 Prius
    Model:
    Touring
    I took it into a mechanic and paid $1400. I didn't do any of it. He will diagnose but just curious what's going on
     
    #4 Joe Wall, Sep 18, 2025 at 4:50 PM
  5. Joe Wall

    Joe Wall Member

    Joined:
    Jan 8, 2019
    226
    45
    0
    Location:
    Wisconsin
    Vehicle:
    2009 Prius
    Model:
    Touring
    He said it was done and driving it home went out
     
    #5 Joe Wall, Sep 18, 2025 at 4:57 PM
(You must log in or sign up to post here.)