Catalytic Converter: Service and Repair

2WD Model:

4WD Model:

CAUTION:
- Replace exhaust gaskets with new ones when reassembling.
If gasket remains on flange surface, scrape off completely as shown at left.
- With engine running, check all tube connections for exhaust gas leaks, and entire system for unusual noises.
- Check to ensure that 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 dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; use a new one.
- Before installing new oxygen sensor, clean exhaust system threads using oxygen sensor thread cleaner Tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.