Installation Procedure
IMPORTANT:
When installing a new exhaust system component, always use new gaskets and seals.
- On all, install the front pipe/TWC assembly to the vehicle.
- Support the TWC with a hanger.
- Attach the front pipe/TWC assembly with a new gasket to the resonator/muffler/tail pipe assembly.
- Secure the resonator/muffler/tail pipe assembly with 2 nuts. Do not fully tighten the nuts.
- On non-California 2.0L engine, attach the electrical connector to the heated oxygen sensor (H02S2) (6).
- On all, connect the front pipe/TWC assembly, with a new seal, to the exhaust manifold and secure with 2 bolts. Do not fully tighten the bolts.
- On California 2.0L engine, install 1 bolt and 1 nut to the exhaust manifold pipe bracket.
Tighten: Tighten the front exhaust pipe bracket nut and bolt to 50 N.m (37 lb ft).
- Install the heated oxygen sensor (HO2S) 2. Refer to Heated Oxygen Sensor Replacement - Position 2 (w/PUP-TWC) or Heated Oxygen Sensor Replacement - Position 2 (w/oPUP-TWC) in Engine Controls-2.0L.
- On non-California engines, align all system components before tightening the fasteners, in order to prevent noise or vibrations.
Tighten:
- Tighten the front pipe/TWC assembly-to-exhaust manifold bolts to 50 N.m (37 lb ft).
- Tighten the front pipe/TWC assembly-to-resonator/muffler/tail pipe assembly nuts to 35 N.m (26 lb ft).
- On California 2.0L engine, align all system components before tightening the fasteners, in order to prevent noise or vibrations.
Tighten: Tighten the front pipe/TWC assembly-to-resonator/muffler/tail pipe assembly nuts to 35 N.m (26 lb ft).
- On all, lower the vehicle.
- On California 2.0L engine, install 3 exhaust manifold to front pipe nuts (1).
Tighten: Tighten the front pipe assembly-to-exhaust manifold bolts to 50 N.m (37 lb ft).
- Position exhaust manifold upper heat shield to the exhaust manifold.
- Install 5 exhaust manifold upper heat shield bolts.
NOTE:
Refer to Fastener Notice
in Cautions and Notices.