Exhaust System: Service and Repair
Removal and InstallationEX-5 Component:
CAUTION:
^ Be sure to use genuine exhaust system parts or equivalents which are specially designed for heat resistance, corrosion resistance, and shape.
^ Perform the operation with the exhaust system fully cooled down because the system will be hot just after engine stops.
^ Be careful not to cut your hand on the heat insulator edge.
REMOVAL
^ Disconnect each joint and mounting using power tool.
^ Remove heated oxygen sensor 2 as follows:
- Using heated oxygen sensor wrench (SST), removal heated oxygen sensor 2.
CAUTION: Be careful not to damage heated oxygen sensor 2.
INSTALLATION
Note the following, and install in the reverse order of removal.
^ Install the collar (5 of Components) with its lower surface horizontal.
^ Temporarily tighten nuts and bolts when installing exhaust pipe assembly. Tighten them to the specified torque when connecting the vehicle rear to the vehicle front.
CAUTION:
^ Always replace exhaust tube gaskets with new ones when reassembling.
^ Discard any heated oxygen sensor which has been dropped onto a hard surface such as a concrete floor. Use a new one.
^ Before installing a new heated oxygen sensor, clean exhaust system threads using the heated oxygen sensor thread cleaner [commercial service tool: J-43897-18 or J-43897-12], and apply the anti-seize lubricant (commercial service tool).
^ Never over torque heated oxygen sensor. Doing so may cause damage to heated oxygen sensor, resulting in the "MIL" coming on.
^ If heat insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the heat insulator, remove them.
^ When installing heat insulator avoid large gaps or interference between heat insulator and each exhaust pipe.
^ Remove deposits from the sealing surface of each connection. Connect them securely to avoid gases leakage.
^ Check each part for unusual interference, and then tighten them to the specified torque.
^ When installing each mounting rubber, avoid twisting or unusual extension in up/down and right/left directions.
INSPECTION AFTER INSTALLATION
^ Check clearance between tail tube and rear bumper is even.
^ With engine running, check exhaust tube joints for gas leakage and unusual noises.
^ Check to ensure that mounting brackets and mounting rubbers are installed properly and free from undue stress. Improper installation could result in excessive noise and vibration.