Clyde Epperson Posted August 16, 2016 Report Share Posted August 16, 2016 Anybody have instructions on replacing the forward catalytic converter? Thank you Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted August 16, 2016 Report Share Posted August 16, 2016 I take it you tried new O2 sensors, let the drive cycle complete, and nothing changed? This is the basic procedure; Catalytic Converter — LHRemoval and Installation 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 .Disconnect the Catalyst Monitor Sensor (CMS) electrical connector.Remove the exhaust Y-pipe. For additional information, refer to Exhaust Y-Pipe in this section.Remove the 2 catalytic converter support bracket-to-transmission bolts. To install, tighten to 48 Nm (35 lb-ft). Remove the 4 nuts and the LH catalytic converter. Discard the nuts and gasket. To install, tighten to 40 Nm (30 lb-ft). 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). To install, reverse the removal procedure. Install a new gasket and nuts. 1 Quote Link to comment Share on other sites More sharing options...
macbwt Posted August 20, 2016 Report Share Posted August 20, 2016 What evidence do you have that the CAT has failed? Quote Link to comment Share on other sites More sharing options...
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