Exhaust Heat Shields

DESCRIPTION






There are two types of heat shields used. One is stamped steel the other is molded foil sheets. The shields attach to the vehicle around the exhaust system and directly onto the catalytic converters, to prevent heat from the exhaust system from entering the passenger area and other areas where the heat can cause damage to other components.

OPERATION
Exhaust heat shields are needed to protect both the vehicle and the environment from the high temperatures developed by the catalytic converter. The combustion reaction facilitated by the catalyst releases additional heat in the exhaust system' Under severe operating conditions, the temperature increases in the area of the reactor. Such conditions can exist when the engine misfires or otherwise does not operate at peak efficiency. DO NOT remove spark plug wires from plugs or by any other means short out cylinders. Failure of the catalytic converter can occur due to a temperature increase caused by unburned fuel passing through the converter.