C 2500 Truck 2WD V6-262 4.3L VIN Z (1992)
4.
Install the catalyst remover tool J-29132-1 to fill plug opening and secure to exhaust system by wrapping the retaining chain over exhaust system.
Fasten the loose end of the chain to the remover, see figure (4).
The remover can be rotated in any direction if interference is encountered.
NOTICE:
The catalyst remover must be held tightly in place against the converter.
5.
Disconnect the air supply from the aspirator. Remove the aspirator from the tailpipe and connect it to the exhaust opening of the catalyst remover.
Reconnect the air supply to the aspirator, see figure (4).
6.
Attach a shop exhaust vent hose to tail pipe.