Exhaust system of gasoline engine HFV6 3.2L Chevrolet Captiva 1

General description and operation of the exhaust system
Exhaust system Note: When checking or replacing exhaust system components, ensure adequate clearance from all underbody points to avoid possible floor...

Tightening torques for threaded connections
Tightening torques for threaded connections PROGRAM Nm lb-ft lb-in Catalytic Converter Pipe Upper Flange Nuts 40 30 - Nuts connecting the catalytic converter...

Location of exhaust system components
1. Exhaust manifold, cylinder bank 1 2. Upstream Heated Oxygen Sensor, Bank 1 3. Exhaust manifold, cylinder bank 2 4. Upstream Heated Oxygen Sensor, Bank 2 5....

Diagnostics of the exhaust system
STATE Probable cause Elimination Exhaust gas leak Leaks at pipe connections. Tightening nuts and bolts to the specified torque. Damaged or improperly installed...

Catalytic converter
Removal procedure 1. Disconnect the negative battery cable. 2. Remove the front exhaust pipe. See "Muffler inlet pipe" in this section. 3. Remove the nuts...

Muffler inlet pipe
Removal procedure 1. Disconnect the negative battery cable. 2. Remove the lower engine shield. 3. Disconnect the lower heated oxygen sensor connector (2 row of...

Underbody catalytic converter (UCC)
Removal procedure 1. Remove the gasket and nuts (3 positions) securing the front muffler pipe to the underbody catalytic converter (UCC). 2. Remove the gasket...

Front muffler
Removal procedure 1. Remove the gasket and nuts securing the front muffler pipe to the underbody catalytic converter (UCC). 2. Remove the gaskets and nuts...

Rear muffler
Removal procedure 1. Remove the gaskets and nuts securing both flanges of the rear muffler pipe to the flange of the front muffler pipe. 2. Disconnect both...

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