Challenger SRT-8 V8-6.1L (2009)
Catalytic Converter: Testing and Inspection
INSPECTION
WARNING: The normal operating temperature of the exhaust system is very high. Therefore, never attempt to service any part of the exhaust
system until it is cooled. Special care should be taken when working near the catalytic converter. The temperature of the converter
rises to a high level after a short period of engine operation time.
Check the catalytic converter for a flow restriction. See: Engine, Cooling and Exhaust/Exhaust System/Testing and Inspection/Symptom Related
Diagnostic Procedures Exhaust System Restriction Check for procedure.
Visually inspect the catalytic converter element by using a bore scope or equivalent. Remove oxygen sensor(s) and insert bore scope. If bore scope is not
available, remove converter and inspect element using a flashlight. Inspect element for cracked or melted substrate.
NOTE: Before replacing a catalytic converter, determine the root cause of failure. Most catalytic converter failures are caused by air, fuel or
ignition problems. Refer to the appropriate diagnostic information for test procedures.