A catalytic converter changes unburned hydrocarbons into carbon dioxide and water vapor. It's a simple chemical process, and like most chemical processes, it will either generate or absorb heat so in this case, since the catalytic converter requires heat to change the state of the hydrocarbons, it either has to be heated or it will operate quite effectively using the exhaust heat.
Note, if the engine is operating efficiently there should be very little for the catalytic converter to do.
Only if the exhuast is vented outside.
Could be a plugged/damaged catalytic converter.
what causes engine to missfire when warmed up on my 2002 accent
Pistons lacking in skirts. If it continues after the engine is warmed up then you have something more severe going on.
NO, it will not damage the vehicle engine by turning the heater ON before the engine has warmed up fully.
The year and engine size would help us help you.
It should idle at aprox 650 rpms warmed up.
The engine on your 04 5.3L Chevy Tahoe could be knocking until it warmed up because of a bad fuel-air mixture. . The wrong oil could also be a cause.
Yes! it does! Even with the engine warmed the smell is still very noticeable. It is related to the feedstock used, if oil-based feedstock is used then it will smell like "french fries". If the feedstock is animal-based fat then it will smell like "pork" or "beef". At least on my 1.9 TDi with catalytic converter.
sounds like your ignition module
You may have a bad cat (and/or engine is not properly tuned). Make sure engine is properly tuned and do not use heavy acceleration until engine is warmed up.
Had the same problem, try changing the plug wires, it worked for mine