Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Catalytic Converter: Testing and Inspection

1. CHECK CONNECTIONS FOR LOOSENESS OR DAMAGE.
2. CHECK CLAMPS FOR WEAKNESS, CRACKS OR DAMAGE.





3. CHECK PROTECTOR FOR DENTS OR DAMAGE.
- If any part of protector is damaged or dented to the extent that it contacts the three-way catalytic converter, repair or replace it.
4. CHECK HEAT INSULATOR FOR DAMAGE.





5. CHECK FOR ADEQUATE CLEARANCE BETWEEN TWC AND HEAT INSULATOR.