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Need some advice

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Shaun J Cochran, Mar 15, 2019.

  1. Shaun J Cochran

    Shaun J Cochran New Member

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    Location:
    Knoxville
    Vehicle:
    2005 Prius
    Model:
    ----USA----
    I have a 05 Prius, just bought it about a month ago. Bought it changed the plugs and oil. Checked it over been in automotive all my life. Must say this is my first prius. Love it, and drove it 2000 miles with no problem. Have a cylinder 2 misfire, changed the plugs, ngk iridium. Runs at idle no check engine light. Minute you put it into mechanic mode skipping and get a p0302. Drive it in normal mode, skips, and bangs. Cleaned the maf, replaced plugs again, ran a bottle of iso heat to remove water, swapped around the coils and stays at cylinder 2. Checked the boots and cleaned them. Ordered a injector and will test that part of the system before replacement. No gas in the oil and oil is not burnt. Antifreeze has no foreign matter. When I bought the car I replaced the hv battery. Any other ideas or thoughts. Thanks in advance.
     
    #1 Shaun J Cochran, Mar 15, 2019
  2. ericbecky

    ericbecky Hybrid Battery Hero

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    Vehicle:
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    Model:
    Two
    Sounds like you are in the right track.

    You've isolated the issue to cyl 2.
    Even after changing the plugs and swapping coil pack.
    Next up is the injector.
     
    #2 ericbecky, Mar 16, 2019
  3. Shaun J Cochran

    Shaun J Cochran New Member

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    2005 Prius
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    ----USA----
    That's what I'm thinking. If not the injector any other thoughts. Praying its not internal.
     
    #3 Shaun J Cochran, Mar 16, 2019
  4. Shaun J Cochran

    Shaun J Cochran New Member

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    Location:
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    Vehicle:
    2005 Prius
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    ----USA----
    Changed the injector and misfire gone. Now loud ticking coming from the lifters. Any thoughts on this?
     
    #4 Shaun J Cochran, Mar 16, 2019
  5. Patrick Wong

    Patrick Wong DIY Enthusiast

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    If changing the fuel injector does not help, check for poor compression on cylinder 2, which can be confirmed via compression test or leakdown test.
     
    #5 Patrick Wong, Mar 16, 2019
  6. edthefox5

    edthefox5 Senior Member

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    Vehicle:
    2007 Prius
    Model:
    Two
    Go on Toyota.com/owners and join the forum using your cars vin. It will show you every time the car has seen an authorized Toyota repair center. You may find out why the car was sold or traded in.

    Stubborn misfires sometimes indicate motor damage from running the engine out of oil which is real common on this site. The car is so reliable no one checks there oil anymore especially if the car has had its oil changed
    At the dealer all it’s life. If dealer serviced most people think I never have to open the hood again never aware there Prius is an oil eating monster and will run itself dry between oil change oci’s.
     
    #6 edthefox5, Mar 16, 2019
  7. Shaun J Cochran

    Shaun J Cochran New Member

    Joined:
    Mar 15, 2019
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    Location:
    Knoxville
    Vehicle:
    2005 Prius
    Model:
    ----USA----
    Changed the injector and fixed the misfire, not rapid tapping noise from the top end. Sounds like lifters hitting. FYI oil change is been done I check the oil every other day to a week tops. Just did another oil change today with Lucas and no improvement. I think I damaged the motor when it was misfiring. Any thoughts
     
    #7 Shaun J Cochran, Mar 16, 2019
  8. Skibob

    Skibob Senior Member

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    Check the valve clearances. The engine is overhead cam so no lifters.
     
    #8 Skibob, Mar 18, 2019
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