1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Please save a Prius

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by lunyty, Nov 29, 2022.

  1. lunyty

    lunyty Junior Member

    Joined:
    Nov 3, 2014
    11
    1
    0
    Location:
    Kingston Tn
    Vehicle:
    2008 Prius
    Model:
    Three
    Car started misfiring,changed plugs,coils ,cleaned EGR and Cooler,cleaned MAF,put it all back together and still the same rattle and misfire,,,if my hands were cleaner i would have put 30 rounds in it but i didn't want to get my gun greasy from my hands,,,,,,im at my wits end..no code except occasional misfir codes random cylinders..210,000 miles always well maintained no problems ever...
     
    #1 lunyty, Nov 29, 2022
  2. lunyty

    lunyty Junior Member

    Joined:
    Nov 3, 2014
    11
    1
    0
    Location:
    Kingston Tn
    Vehicle:
    2008 Prius
    Model:
    Three
    i also used brake clean to clean MAF,i know not good but all i had ,and never had MAF code just thought i'd clean it while i was in there >
     
    #2 lunyty, Nov 29, 2022
  3. Burningoil

    Burningoil New Member

    Joined:
    Nov 7, 2022
    24
    17
    0
    Location:
    San diego
    Vehicle:
    2010 Prius
    Model:
    Three
    When you clean the intake manifold did you clean/clear those small 4 passage under the big one?
     
    #3 Burningoil, Nov 30, 2022
  4. Burningoil

    Burningoil New Member

    Joined:
    Nov 7, 2022
    24
    17
    0
    Location:
    San diego
    Vehicle:
    2010 Prius
    Model:
    Three

    Here's a link about the ports
     
    #4 Burningoil, Nov 30, 2022
  5. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    10,406
    1,800
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    You e got a blown head and possible center section damage can't see from here.
     
    #5 Tombukt2, Nov 30, 2022
  6. lunyty

    lunyty Junior Member

    Joined:
    Nov 3, 2014
    11
    1
    0
    Location:
    Kingston Tn
    Vehicle:
    2008 Prius
    Model:
    Three
    Yea i cleaned the EGR ports on the intake,3 were plugged completely,when its rattling and i unplug the MAF,it runs perfect for a few seconds,trips CEL and starts rattling again,,side of block is fine and no coolant loss.i tried to test MAF using needles which i've done before but the plug comes in from the bottom,3rd prius i've bought new and this 2010 one is junk..i lost all faith in Toyota after this one..
     
    #6 lunyty, Nov 30, 2022
  7. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    24,919
    16,226
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    This is a good example of where a kind of haste to solve one problem can end up adding new problems, so everything just gets harder.
     
    #7 ChapmanF, Nov 30, 2022
    Tombukt2 likes this.
  8. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    11,332
    4,614
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Have you tried disconnecting the 12volt battery for a few minutes? That resets everything... Also do you have a friend with same car so you can swap MAF with to see if that's the problem? Or just buy a cheap used one online? And as always, check all the plugs and hoses. Your symptoms sound like something could of got unconnected.
     
    #8 PriusCamper, Nov 30, 2022
  9. lunyty

    lunyty Junior Member

    Joined:
    Nov 3, 2014
    11
    1
    0
    Location:
    Kingston Tn
    Vehicle:
    2008 Prius
    Model:
    Three
    i was getting a slight misfire,random plugs so i changed plugs,they looked good,, misfire #2,,,,,swapped #2 and #4 coil ,,misfire moved to #4 so i got new coils,misfire turned to rattle,,,,cleaned egr and cooler ....egr was soso,...cooler blocked....cleaned with drill and wire after soak,,never had egr code,,,never had maf code..no matter what i change i still got rattle,,,new maf is on its way but i'm thinking it may be too late..sold 1st gen with 250,000 miles ,,,,,2nd gen 300,000....i can't believe how bad this gen 3 is...got a couple Hyundai Ioniqs in the family and they seem like better cars,,maybe i'm just mad
     
    #9 lunyty, Nov 30, 2022
  10. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,174
    4,079
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    Not sure of s CEL can detect that.
     
    #10 Grit, Nov 30, 2022
  11. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    24,919
    16,226
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Isn't that when the Replace Driver light comes on?
     
    #11 ChapmanF, Dec 1, 2022
    mr_guy_mann and Grit like this.
  12. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,174
    4,079
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    :ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO::ROFLMAO:
     
    #12 Grit, Dec 1, 2022
(You must log in or sign up to post here.)