No, water coming from the exhaust is normal in small amounts. The temp differences causes condensation. When the car sits, the exhaust is cold or ambiant temp. When the vehicle starts, the exhaust system warms up, causing condensation. There are actually weep holes in most mufflers to let the water out to prevent rust.
Faulty catalytic converter, or sensors in exhaust faulty
No, the catalytic converter has nothing whatsoever to do with your defrost system.
about $250
Yes, it can if faulty or missing.
Immediately.
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, a 2000 Chevy Impala can run without a catalytic converter, but doing so is not recommended. It may lead to increased emissions, causing the vehicle to fail emissions tests and potentially incur legal penalties. Additionally, removing the catalytic converter can affect engine performance and fuel efficiency. It's advisable to replace a faulty catalytic converter rather than remove it.
yes but it would need to be a very serious flaw
Yes, it can cause damage to the O2 sensor and catalytic converter.