How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask eric Your Own Question

eric
eric, Automotive Repair Shop Manager
Category: Nissan
Satisfied Customers: 24475
Experience:  Automotive Repair Shop Manager, Technician/JA Mentor
3195632
Type Your Nissan Question Here...
eric is online now
A new question is answered every 9 seconds

Nissan/Datsun Titan I need to replace my catalytic converters

Resolved Question:

I need to replace my catalytic converters on my 2006 Nissan Titan. how do I get step by step info on doing this procedure.
Submitted: 2 years ago.
Category: Nissan
Expert:  eric replied 2 years ago.
hi,

are you replacing just the main converters on the exhaust pipes or are you also replacing the ones that are part of the exhaust manifolds as well?

Are you using direct fit replacement units or are you using universals that will have to be welded into place?

how many miles - over 80,000?
Customer: replied 2 years ago.
the diagnostic from nissan is, tw catalyst sys-B1 ( p0420 )
and tw catalyst sys-B2 ( p0430 )
103,000 miles
Expert:  eric replied 2 years ago.
Hi,

ok, you will need to replace the right and left converters that are on the exhaust pipe, not the ones on the exhaust manifolds.

Direct fit replacement is pretty easy. You will disconnect the harness connectors for the O2 sensors, and unscrew the O2 sensors from both left and right exhaust pipe at the converters. Now, simply remove the 2 bolts at front flange and 2 bolts at rear flange and drop each pipe with converter. use new gaskets and bolt up new converters.

They are located underneath the vehicle on either side, roughly at beginning of cab area.

Here is diagram showing both and you can see that they are just bolted into place with 2 bolts at front and 2 bolts at rear of pipes.

graphic
eric, Automotive Repair Shop Manager
Category: Nissan
Satisfied Customers: 24475
Experience: Automotive Repair Shop Manager, Technician/JA Mentor
eric and other Nissan Specialists are ready to help you
Expert:  eric replied 2 years ago.
ok, you will need to replace the right and left converters that are on the exhaust pipe, not the ones on the exhaust manifolds.

Direct fit replacement is pretty easy. You will disconnect the harness connectors for the O2 sensors, and unscrew the O2 sensors from both left and right exhaust pipe at the converters. Now, simply remove the 2 bolts at front flange and 2 bolts at rear flange and drop each pipe with converter. use new gaskets and bolt up new converters.

They are located underneath the vehicle on either side, roughly at beginning of cab area.

Here is diagram showing both and you can see that they are just bolted into place with 2 bolts at front and 2 bolts at rear of pipes.

graphic

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
< Last | Next >
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
 
 
 

Meet The Experts:

 
 
 
  • Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
< Last | Next >
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    306
    ASE Master Automobile Technician with over 18 years exp. in this field.
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    171
    34 years of automotive Repair
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris(aka-Moose)'s Avatar

    Chris(aka-Moose)

    Nissan Technician

    Satisfied Customers:

    165
    16 years of experience
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    ASE Certified Technician

    Satisfied Customers:

    127
    ASE & Bosch master tech. 30 years experience.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2013-8-30_131413_11848761610058140852271553042976n.64x64.jpg Mike V.'s Avatar

    Mike V.

    Nissan Technician

    Satisfied Customers:

    7443
    Nissan factory trained and Certified Subaru Technician.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    92
    Nissan Tech ASE certified technician