Grand Cherokee 2WD L6-4.0L VIN S (1997)
Catalyst Shield: Description and Operation
HEAT SHIELDS
Heat shields are needed to protect both the vehicle and the environment from the high temperatures developed by the catalytic converter. The
catalytic converter releases additional heat into the exhaust system. Under severe operating conditions, the temperature increases in the area of the
converter. Such conditions can exist when the engine misfires or otherwise does not operate at peak efficiency.
