Exhaust Pipe: Service and Repair

Removal Procedure
1. Raise and support the vehicle. Refer to Vehicle Lifting.





2. Remove two bolts and the front pipe/TWC assembly (2) from the exhaust manifold (1).





3. Remove the electrical connector at the heated oxygen sensor (H02S2) (3).





4. Remove two nuts and the front pipe/TWC assembly from the resonator/muffler/tail pipe assembly.
5. Remove the hanger supporting the TWC.
6. Remove the front pipe/TWC assembly from the vehicle.
7. Clean the gasket and the seal mating surfaces.

Installation Procedure

Important: When installing a new exhaust system component, always use new gaskets and seals.





1. Install the front pipe/TWC assembly to the vehicle.
2. Support the TWC with a hanger.
3. Attach the front pipe/TWC assembly with a new gasket to the resonator/muffler/tail pipe assembly.
4. Secure the resonator/muffler/tail pipe assembly with two nuts. Do not fully tighten the nuts.
5. Attach the electrical connector to the heated oxygen sensor (H02S2) (3).
6. Connect the front pipe/TWC assembly, with a new seal, to the exhaust manifold and secure with two bolts. Do not fully tighten the bolts.

Notice: Refer to Fastener Notice in Service Precautions.

7. Align all system components before tightening the fasteners, in order to prevent noise or vibrations.
^ Tighten the front pipe/TWC assembly-to-exhaust manifold bolts to 50 Nm (37 ft. lbs.).
^ Tighten the front pipe/TWC assembly-to-resonator/muffler/tail pipe assembly nuts to 35 Nm (26 ft. lbs.).
8. Lower the vehicle.