SECTION 6F - ENGINE EXHAUST (6VE1 3.5L)
Service Precaution
General Description
Three-way Catalytic Converter and Centre Exhaust Pipe
Three-way Catalytic Converter and Centre Exhaust Pipe and Associated Parts
Removal
Installation
Exhaust Silencer and Tail Pipe
Exhaust Silencer and Tail Pipe and Associated Parts
Removal
Installation
Main Data and Specifications
Techline
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM
REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
HOLDEN will call out those fasteners that require a
replacement after removal. HOLDEN will also call
out the fasteners that require thread lockers or
thread sealant. UNLESS OTHERWISE SPECIFIED,
do not use supplemental coatings (Paints, greases,
or other corrosion inhibitors) on threaded fasteners
or fastener joint interfaces. Generally, such
coatings adversely affect the fastener torque and
the joint clamping force, and may damage the
fastener. When you install fasteners, use the
correct tightening sequence and specifications.
Following these instructions can help you avoid
damage to parts and systems.
General Description
RTW46FLF000101
Legend (3) Three-way Catalytic Converter
(1) Front Exhaust Pipe LH (4) Centre Exhaust Pipe
(2) Front Exhaust Pipe RH (5) Exhaust Silencer and Tail Pipe
When inspecting or replacing exhaust system components, make sure there is adequate clearance from all points on
the underbody to prevent overheating the floor pan and possible damage to the passenger compartment insulation and
trim materials.
Check complete exhaust system and nearby body areas and rear compartment for broken, damaged, missing or
mispositioned parts, open seams, holes, loose connections or other deterioration which could permit exhaust fumes to
seep into the rear compartment or passenger compartment. Dust or water in the rear compartment may be an
indication of a problem in one of these areas. Any faulty areas should be corrected immediately.
Hangers
Various types of hangers are used to support exhaust system(s). These include conventional rubber straps, rubber
rings, and rubber blocks.
The installation of exhaust system supports is very important, as improperly installed supports can cause annoying
vibrations, which can be difficult to diagnose.
Three-way Catalytic Converter
The three-way catalytic converter is an emission control device added to the exhaust system to reduce pollutants from
the exhaust gas stream.
CAUTION: The catalytic conv erter requires the use of unleaded fuel only.
Periodic maintenance of the exhaust system is not required. If the vehicle is raised for other service, it is advisable to
check the condition of the complete exhaust system.
A dual bed monolith catalytic converter is used in combination with a three-way catalytic converter.
Catalytic Converter Types:
Three-way (Reduction/Oxidation) catalyst
The catalyst coating on the three-way (reduction) converter contains platinum and rhodium which lowers the levels of
nitrous oxide (NOx) as well as hydrocarbons (HC) and carbon monoxide (Co).
Gasket
The gasket must be replaced whenever a new exhaust pipe, silencer or catalytic converter is installed.
Three-way Catalytic Converter and Centre Exhaust Pipe
Three-way Catalytic Converter and Centre Exhaust Pipe and Associated Parts
RTW46FMF000201
Legend (4) Three-way Catalytic Converter LH
(1) Front Exhaust Pipe Fixing Nuts (5) Mounting Rubber
(2) O2 Sensor Connector (6) Exhaust Pipe Fixing Nuts
(3) Three-way Catalytic Converter RH (7) Centre Exhaust Pipe
Removal
1. Disconnect battery ground cable.
2. Lift up the vehicle and support with suitable safety
stands.
3. Disconnect O2 sensor harness connectors (2).
4. Remove the centre exhaust pipe fixing nuts (6) and
the exhaust silencer fixing bolts, then remove the
centre exhaust pipe and the mounting rubber.
5. Remove the front exhaust pipe fixing nuts (1) and
the mounting rubber (5), then remove the three-way
catalytic converter (3) (4).
Installation
1. Install the three-way catalytic converter (3) (4) and
the mounting rubbers, and tighten the fixing nuts (1)
to the specified torque.
Torque : 67 N⋅m (6.8 kg⋅m/49 lb ft)
2. Install the centre exhaust pipe and the mounting
rubber, and tighten the fixing nuts (6) and bolts to
the specified torque.
Torque : 43 N⋅m (4.4 kg⋅m/32 lb ft)
3. Connect the O2 sensor connectors (2).
Exhaust Silencer and Tail Pipe
Exhaust Silencer and Tail Pipe and Associated Parts
RTW46FMF000301
Legend (4) Exhaust Silencer Mounting Rubber
(1) Centre Exhaust Pipe (5) Exhaust Silencer and Tail Pipe
(2) Exhaust Pipe Fixing Bolts (6) Tail Pipe Mounting Rubber
(3) Exhaust Pipe Fixing Nuts
Removal
1. Disconnect battery ground cable.
2. Lift up the vehicle and support with suitable safety
stands.
3. Remove the exhaust pipe fixing nuts (3) and bolts
(2).
4. Remove the silencer and tail pipe mounting rubbers
(4) (6), then remove the exhaust silencer (5) and
tail pipe (6).
Installation
1. Install the exhaust silencer and tail pipe (5), then
install the exhaust silencer and tail pipe mounting
rubbers (4) (6).
2. Tighten the exhaust pipe fixing nuts (3) and exhaust
pipe fixing bolts (2) to the specified torque.
Torque: 43 N⋅m (4.4 kg⋅m/32 lb ft)
Main Data and Specifications
Torque Specifications N⋅m (kg⋅m/lb ft)
RTW36FLF000301