Jump to content
Sign in to follow this  
Clyde Epperson

Replacing catalytic converter

Recommended Posts

Anybody have instructions on replacing the forward catalytic converter?

Thank you

Share this post


Link to post
Share on other sites

I take it you tried new O2 sensors, let the drive cycle complete, and nothing changed?

 

This is the basic procedure;

 

Catalytic Converter — LH

Removal and Installation

  1. NOTE: Always install new fasteners and gaskets. Clean flange faces prior to new gasket installation to make sure of correct sealing.

    With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section 100-02 .
  1. Disconnect the Catalyst Monitor Sensor (CMS) electrical connector.
  1. Remove the exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe in this section.
  1. Remove the 2 catalytic converter support bracket-to-transmission bolts.
    • To install, tighten to 48 Nm (35 lb-ft).
  1. Remove the 4 nuts and the LH catalytic converter.
    • Discard the nuts and gasket.
    • To install, tighten to 40 Nm (30 lb-ft).
  1. Inspect the exhaust manifold studs for damage.
    • If damaged, replace stud(s), or if stud comes out when removing nut(s), replace the stud(s).
    • To install, tighten to 25 Nm (18 lb-ft).
  1. To install, reverse the removal procedure.
    • Install a new gasket and nuts.
  • Like 1

Share this post


Link to post
Share on other sites

What evidence do you have that the CAT has failed?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×