Exhaust System: Service and Repair

Removal and Installation

CAUTION:
^ Always replace the exhaust tube gaskets with new ones when reassembling the system.
^ With the engine running, check all of the exhaust tube connections for exhaust gas leaks, and the entire system for any unusual noises.
^ Check to ensure that the mounting brackets and mounting insulators are installed properly and are free from undue stress. Improper installation could result in excessive noise or vibration.
^ Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 inch) onto a hard surface such as a concrete floor, replace it with a new one.
^ Before installing a new oxygen sensor, clean the exhaust tube threads using Oxygen Sensor Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
^ Do not over-tighten the oxygen sensor. Over-tightening may cause damage to the oxygen sensor, resulting in the MIL coming on.