OEM 2005 Toyota Tundra Catalytic Converter

2005 Toyota Tundra Catalytic Converter Parts Q&A

• Q: How to replace the catalytic converter on 2005 Toyota Tundra?

  A: The heated oxygen sensor (Bank 1) needs removing as the first step in catalytic converter replacement. Unplug the sensor then take it off. The exhaust center pipe requires removal of its four bolts and two springs. Start by removing the RH front exhaust pipe through the procedure of removing its 2 nuts together with the pipe before eliminating the 2 gaskets. The procedure for Bank 2 heated oxygen sensor requires disconnecting its connector and sensor removal. To remove the LH front exhaust pipe you must first disconnect the two nuts and the exhaust pipe support before taking away the pipe and removing the two gaskets. Unbolt the manifold stay through the removal of all its six bolts and two support stays. Begin by disconnecting the A/F sensor (Bank 1) then proceed to remove the exhaust manifold RH by taking off all its 6 nuts along with the gasket. The installer should complete the same procedure for Bank 2 A/F sensor and exhaust manifold LH. Install the exhaust manifold RH by setting it with a new gasket, where the oval opening should point forward and apply 6 nuts evenly with 21 Nm of torque (214 kgf.cm, 15 ft.lbf). The A/F sensor (Bank 1) must be installed with 44 Nm (450 kgf.cm, 33 ft.lbf) torque before connecting its sensor connector. When installing the exhaust manifold LH, orient the new gasket with its oval shape positioned backward then fasten it with 6 nuts which should be tightened to 21 Nm (214 kgf.cm, 15 ft.lbf). The Bank 2 A/F sensor requires installation at 44 Nm torque (450 kgf.cm, 33 ft.lbf) while following up with the sensor connector connection. Screw the manifold stays into place with its 6 bolts and tighten them to 40 Nm (408 kgf.cm, 30 ft.lbf). The LH front exhaust pipe requires installation of new gaskets followed by the pipe and 2 new nuts which need a torque setting of 62 Nm (630 kgf.cm, 46 ft.lbf) before installing the exhaust pipe support. Tighten the heated oxygen sensor (Bank 2) to 44 Nm (450 kgf.cm, 33 ft.lbf) while connecting its sensor connector. The RH front exhaust pipe also requires 2 new gaskets with 2 new nuts that need to be torqued to 62 Nm (630 kgf.cm, 46 ft.lbf). Installing the heated oxygen sensor (Bank 1) requires a torque of 44 Nm (450 kgf.cm, 33 ft.lbf) followed by connecting the sensor connector and attaching the exhaust center pipe by setting 2 bolts to 48 Nm (489 kgf.cm, 35 ft.lbf) and using the 2 bolts and springs which need to be tightened to 43 Nm (440 kgf.cm, 32 ft.lbf).