30 Minute Sparkplug Change :)

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by 05PreeUs, Oct 30, 2016.

  1. 05PreeUs

    05PreeUs Senior Member

    Joined:
    Oct 1, 2016
    1,097
    556
    0
    Location:
    MSP
    Vehicle:
    2005 Prius
    Model:
    N/A
    With each consecutive maintenance procedure, I become ever more impressed with the engineering on these cars.

    I have changed THOUSANDS of sparkplugs on hundreds of engines, but given the apparently difficulty of this on a Gen 2 Prius, they were shockingly easy to change. Despite the records indicating plug change about 80k ago, our car developed a VERY intermittent misfire with flashing CEL (engine shaped light). Research led to the likely cause of misfire induced by sparkplug(s). I hold shops in dim light and expected to find el-cheapo Cu plugs that were wrong for this vehicle, but I was proven wrong; the correct NGKs were used.

    In any event, there was moisture in two of the four plug wells and rust in #1, easily explaining our symptoms. Given there was no DTC logged, I checked FIRST, I am confident that the defect was caught in the very beginning stages.
     
    bisco likes this.
  2. JC91006

    JC91006 Senior Member

    Joined:
    Nov 10, 2013
    14,856
    7,592
    0
    Location:
    Los Angeles, CA
    Vehicle:
    2010 Prius
    Model:
    V
    Gen2 services are fairly simple to do. This is probably the best and easiest diy vehicle out there
     
    Aaron Vitolins and bisco like this.
  3. 05PreeUs

    05PreeUs Senior Member

    Joined:
    Oct 1, 2016
    1,097
    556
    0
    Location:
    MSP
    Vehicle:
    2005 Prius
    Model:
    N/A
    DIY is as easy on a Subaru as ANY vehicle I have ever seen, but the logical lay-out and engineering of the Toyota is hard to beat!
     
  4. fotomoto

    fotomoto Senior Member

    Joined:
    Apr 22, 2009
    5,373
    3,593
    0
    Location:
    So. Texas
    Vehicle:
    Other Hybrid
    I DIY oil changes on all my vehicles over the years and our Outback is, by far, the easiest and most thought out of all of them: ride height is high enough to not need ramps or jack stands to get underneath and the oil filter mounted up top, up front, and upside down so it drains back into the engine. (y)
     
  5. andrewclaus

    andrewclaus Active Member

    Joined:
    Sep 15, 2009
    993
    318
    0
    Location:
    Golden, CO
    Vehicle:
    2007 Prius
    My '98 Outback with the 2.5L is a very hard spark plug change. Yep, the Prius is a snap for many routine tasks. Flushing brake fluid and changing engine coolant are among the exceptions, though with the MiniVCI they're not so bad.
     
  6. exstudent

    exstudent Senior Member

    Joined:
    Jul 11, 2009
    2,207
    880
    0
    Location:
    Torrance, CA
    Vehicle:
    2007 Prius
    Hopefully you applied some caulk or a new rubberized weatherstriping (Shop M-D Building Products 0.75-in x 10-ft Black Sponge Rubber Window Weatherstrip at Lowes.com) to replace the factory seal in the middle of the cowl.

    Post 1 has images of the original seal; Hood cowl engine compartment water seal questions | PriusChat Yours are probably well worn or gone.

    This center cowl seal is a common problem on Gen2s.
     
  7. CooCooCaChoo

    CooCooCaChoo Active Member

    Joined:
    Jan 7, 2015
    652
    360
    0
    Location:
    Cow-lee-fornia
    Vehicle:
    2017 Prius
    Model:
    Two Eco
    Probably should've changed the PCV too while all that stuff was off.
     
Loading...