Exhaust Pipe: Service and Repair

Front Pipe Replacement

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)(6).





4. Remove two nuts and the front pipe/TWC assembly (1) from the resonator/muffler/tail pipe assembly.
5. Remove the hanger supporting the TWC.
6. Remove the front pipe/TWC assembly (1) 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 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) (6).
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.