B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Catalytic Converter: Service and Repair
THREE-WAY CATALYTIC CONVERTER REMOVAL / INSTALLATION
1. Raise the vehicle.
2. Disconnect the downstream oxygen connector.
3. Remove the downstream oxygen sensor.
4. Remove the muffler and tailpipe.
5. Remove the nuts.
Note:
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The exhaust hanger bracket insulators can be reused if they show no signs of damage.
6. Remove the three-way catalytic converter and the exhaust outlet pipe frame brackets.
7. Install the exhaust inlet pipe gasket, the three-way catalytic converter and the exhaust outlet pipe frame brackets.
8. Install the nuts.
Tightening torque: 25 - 35 Nm (2.6 - 3.6 kgf.m, 19 - 25 ft. lbs.)
9. Install the muffler and tailpipe.
10. Lower the vehicle.
