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  1. KitsuneVoss

    KitsuneVoss Member

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    2009 Prius
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    My roommate's care has a code for a misfire and looks like time for a tuneup.

    Watched videos and does not look that hard. Involves taking apart the wiper assembly in a similar manner as when I replace the Inverter. I remember looking at the plugs when I did that job.

    I do have a question however. Do I just need to likely replace the spark plugs or will I need to replace her coils at the same time?

    When I have done tuneups on my Fords, I have replaced the wires but not the coil packs although I have replaced the coil packs on them when something seems strange with them. Ford coil packs are not for each plug but in blocks.
     
  2. bisco

    bisco cookie crumbler

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    how many miles on her?

    you don't really do a tune up on a priusin the old common sense of the term.

    follow the maintenance schedule. plugs every 120k, and they usually look like brand new.

    to test coils, switch them around to see if the code changes cylinders.

    only by oem parts and from a dealer. either in person or on line.
     
  3. KitsuneVoss

    KitsuneVoss Member

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    Including plugs themselves?
     
  4. TMR-JWAP

    TMR-JWAP Senior Member

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    Order the DENSO 3324 (Sk16R11) spark plug at RockAuto. They're genuine Denso and only about $6 each. You do NOT need to remove the wiper cowl, etc to do plugs on a Gen 2. Just use the right ratchet and extensions with a magnetic plug socket. Out of about a dozen Gen 2's I've owned. I've never needed to replace a coil.
     
  5. KitsuneVoss

    KitsuneVoss Member

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    I saw the Denso 3324 are also available on Amazon

    Just have a normal plug socket. I guess a magnetic one makes it easier to remove?
     
  6. dolj

    dolj Senior Member

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    I wouldn't buy plugs or coils on Amazon or eBay for that matter; there are just too many counterfeit products on both platforms. Get the best price from a bricks-and-mortar store.
    My plug socket is just a normal one too and I have had no problem changing plugs in a Prius with it. There is no problem with them as long as the rubber grommet still grips the plug well.