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

Catalytic Converter Install

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Oldmanriver, May 11, 2021.

  1. Oldmanriver

    Oldmanriver Junior Member

    Joined:
    Sep 18, 2018
    28
    11
    0
    Location:
    Pittsburgh, PA
    Vehicle:
    2007 Prius
    Model:
    Two
    Hello what are my options as far as Cat replacement. I have a project Gen3 with a bad cat and looking into my options for a replacement and what has been done to address the coolant lines. All of my searches produce results regarding Cat theft deterrents. Thanks in advance!
     
    #1 Oldmanriver, May 11, 2021
  2. Georgina Rudkus

    Georgina Rudkus Senior Member

    Joined:
    Sep 15, 2018
    3,124
    2,181
    0
    Location:
    Taylors, SC
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    You need to purchase a new converter like this one.

    Catalytic Converter For 2010 2011 2012 2013 2014 2015 Toyota Prius 1.8L EPA | eBay

    Carefully cut off the old cat before the pre-heater without cutting the coolant lines.

    Position and tack weld the new cat to the pre-heater.

    Clamp off the coolant lines before the pre-heater, remove the clamps and take down the cat with the pre-heater and resonator attached.

    Fully weld the connection between the converter and the pre-heater.

    Reinstall the entire unit, top off the coolant, and you're done.
     
    #2 Georgina Rudkus, May 11, 2021
    Last edited: May 11, 2021
  3. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,673
    38,213
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Not sure I understand the sequence as described above; the old cat comes off BEFORE the new one is tack welded, no?
     
    #3 Mendel Leisk, May 11, 2021
  4. Georgina Rudkus

    Georgina Rudkus Senior Member

    Joined:
    Sep 15, 2018
    3,124
    2,181
    0
    Location:
    Taylors, SC
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    Unfortunately, I do not want to elaborate, because this is the very technique used to cleanly and easily steal a Gen 3 cat.
     
    #4 Georgina Rudkus, May 11, 2021
    Mendel Leisk likes this.
  5. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

    Joined:
    Oct 28, 2010
    7,673
    6,492
    0
    Location:
    Redneck Riviera (Gulf South)
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    University of YouTube.
    School of Automotive Technology.

    Your instructor will be "Four Fingers Frank" who is on a work-release program from the Department Of Corrections.....
     
    #5 ETC(SS), May 11, 2021
    douglasjre and Mendel Leisk like this.
  6. Georgina Rudkus

    Georgina Rudkus Senior Member

    Joined:
    Sep 15, 2018
    3,124
    2,181
    0
    Location:
    Taylors, SC
    Vehicle:
    2012 Prius v wagon
    Model:
    Two
    Four Fingers? If he is missing his pinkie, he must be a member of the Yakuza.
     
    #6 Georgina Rudkus, May 11, 2021
  7. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

    Joined:
    Oct 28, 2010
    7,673
    6,492
    0
    Location:
    Redneck Riviera (Gulf South)
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    Sawzall accident......
     
    #7 ETC(SS), May 11, 2021
    Grit likes this.
  8. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,112
    4,040
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    priuscamper would beg to differ.
     
    #8 Grit, May 11, 2021
  9. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,673
    38,213
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Most folks only have four fingers per hand. Just sayin...
     
    #9 Mendel Leisk, May 11, 2021
  10. Grit

    Grit Senior Member

    Joined:
    Aug 22, 2017
    6,112
    4,040
    1
    Location:
    Wilkes Land
    Vehicle:
    2012 Prius
    Model:
    Four
    :ROFLMAO:
     
    #10 Grit, May 11, 2021
  11. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,673
    38,213
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    #11 Mendel Leisk, May 11, 2021
(You must log in or sign up to post here.)