A heat shield is used to keep high exhaust system operating temperatures from radiating to the floor of the passenger compartment or other vehicle parts that should not be exposed to the high heat. If it is mounted above the catalytic converter it becomes the catalytic converter heat shield. There can be other heat shields through-out the exhaust system not just the converter. The converter or converters, (some vehicles are equipped with more than one) are the hottest part of the exhaust system. Generally heat shields are made of stamped aluminized steel. They are light weight and effective in shielding various parts or areas of the vehicle from the high exhaust operating temperatures. They are also prone to corrosion after a long period of service, they can rattle and make noise once they become rusted from their mounting areas. They should under no circumstances be discarded once deemed broken. Instead heat shields should be replaced as they are needed for above mentioned reasons.
A heat shield deflects the heat given off the catalytic converter from over heating surrounding parts or panels.
Heat shield.
Maybe the heat shield on catalyytic converter Maybe the heat shield on catalytic converter Maybe the heat shield on catalytic converter Maybe the heat shield on catalytic converter
I do not believe that catalytic converters (as used in exhaust systems) have a heat shield. They are simply porous blocks through which the exhaust gasses flow.
Check heat shield on catalytic converter
Check the heat shield on the catalytic converter
Yes, it can and this may also be a loose or cracked converter heat shield.
No,, the converter gets very hot and can cause a fire if no heat shield is in place.
Heat shield on catalytic converter? Octane rating of fuel not high enough Timing too far advanced Catalytic converter itself
Normally the heat shield on top of the converter is the source of the rattle. It is possible the the converter medium itself has broken into pieces resulting in a rattle that sounds as if there are rocks in the converter. If the heat shield and the rest of your exhaust seems secure, it is likely the converter needs to be replaced.
Catalytic converters do not rattle. If it does it will need to be replaced as it may block the exhaust. Loose heat shield?
The heat shield on top of the converter may have broken loose. it can be repaired. If the rattling is inside the converter it must be replaced.