Catalytic Converter Replacement (With MH8)

Catalytic Converter Replacement (LE5 or LE9 With MH8)

Removal Procedure
Warning: Refer to Hot Exhaust System Warning (Hot Exhaust System Warning)


1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair)
2. Remove the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Sensor 2 (MH8) (Heated Oxygen Sensor Replacement - Sensor 2 (MH8)).




3. Remove the catalytic converter to muffler nuts (1).
4. Separate the exhaust flexible pipe (2) from the catalytic converter studs.
5. Position and support the exhaust pipe (2) out of the way.




6. Remove the converter to bracket bolt (1).
7. Remove the catalytic converter to exhaust manifold nuts (3).
8. Remove the catalytic converter (2) and gasket. Discard the Catalytic converter gaskets.

Installation Procedure




1. Install a NEW gasket to the catalytic converter.
2. Position the catalytic converter (2) to the exhaust manifold and converter bracket.
3. Loosely install the converter to manifold nuts (3) and converter bracket bolt (1).

Caution: Refer to Fastener Caution (Fastener Caution).

4. Tighten the converter to manifold nuts to 45 Nm (33 lb ft).
5. Tighten the converter to bracket bolt to 58 Nm (42 lb ft).




6. Install a NEW gasket between the converter and exhaust pipe (2).
7. Connect the exhaust flexible pipe to the converter and tighten the nuts (1) to 25 Nm (18 lb ft).
8. Install the heated oxygen sensor. Refer to Heated Oxygen Sensor Replacement - Sensor 2 (MH8) (Heated Oxygen Sensor Replacement - Sensor 2 (MH8)).
9. Lower the vehicle