Monaco V6-182 3.0L SOHC (1990)
2.
Locate oxygen sensor in the exhaust "Y" pipe before the catalytic converter as shown in Figure 1.
3.
Disconnect oxygen sensor connector.
4.
Remove oxygen sensor.
5.
Clean threads in exhaust pipe with a thread chaser.
Note:
Do not use solvents or lubricants on threads.
6.
Install provided oxygen sensor. Tighten to 22 ft lbs (30 Nm).
7.
Connect oxygen sensor connector.
B.
Replace Catalytic Converter:
Warning:
If torches are used when working on the exhaust system, do not allow the flame near the plastic fuel lines.
1.
Remove and discard the nuts, bolts and gasket at the front of the converter and the exhaust pipe clamp at the rear (Figure 2).
Note:
Use penetrating oil if necessary.
2.
Insert a chisel-tipped tool between the converter and intermediate pipe connection and loosen the converter from the pipe.