Sequoia LTD 4WD V8-4.7L (2UZ-FE) (2001)
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Catalytic Converter: Testing and Inspection
THREE-WAY CATALYTIC CONVERTER (TWC) SYSTEM
ON-VEHICLE INSPECTION
1. CHECK EXHAUST PIPE ASSEMBLY
a. Check the connections for looseness or damage.
b. Check the clamps for weakness, cracks or damage.
2. INSPECT TWC
Check for dents or damage.
If any part of protector is damaged or dented to the extent that it contacts the TWC, repair or replace it.
3. INSPECT HEAT INSULATOR
a. Check the heat insulator for damage.
b. Check for adequate clearance between the TWC and heat insulator.
