A catalytic converter that has had a melt down and is restricting the exhaust from passing through will cause the engine to lose power on acceleration and on top end. If the cat is damaged bad enough the engine won't run much over an idle and may set a misfire code. You can test for that condition by installing a vacuum gauge to a direct intake manifold vacuum source. The vacuum will decrease as engine speed increases if the cat is plugged.Give us the year, make, model and engine info for more help.
Backwards, Missfire and bucking will cause a faulty converter
Faulty spark plug or wireFaulty coil (pack)Faulty oxygen sensor(s)Faulty fuel injectorBurned exhaust valveFaulty catalytic converter(s)Running out of fuelPoor compressionDefective computer
Faulty catalytic converter, or sensors in exhaust faulty
No, the catalytic converter has nothing whatsoever to do with your defrost system.
Immediately.
Yes, it can if faulty or missing.
about $250
A faulty muffler will not cause this but a clogged catalytic converter will.
Most likely a faulty gasket in the oil system, a faulty catalytic converter or a faulty component in the exhaust system.
loss of power.noise rattling from exhaust
Yes, a faulty catalytic converter can cause fuel consumption to raise. Replacing a known bad catalytic converter will help, but keep in mind, the catalytic converter usually does not fail on its own. converters are pretty tough, living their lives running at 2000+ degrese internally. I would check your EGR valve and EGR valve tube for blockage or carbon build up. a faulty or clogged EGR valve will overtime distroy a catalytic converter. second thing to check is your Oxygen Sensors. these sensors are the computers first reading of bad fuel mixture, if they are clogged with carbon, they can distroy your EGR valve, which inturn kills your converter.
yes but it would need to be a very serious flaw
Yes, it can cause damage to the O2 sensor and catalytic converter.