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valve seals and or guides bad
The car might not start. If it does start, the banana might shoot out the tailpipe. If it is up in the muffler, it might smoke or burn.
Catalytic converters clog due to the carbon that the car produces. Usually, when the carbon has built up inside the cat., black smoke will come out of the tailpipe when you rev the engine. In extreme cases, black soot is visible on the ground next to the vehicle's tailpipe. Crystal Woll
no
condensation should evaporate as exhaust system heats up if it continues you may have a leaking head gasket
Carbon.....replace your EGR valve and O2 sensors. its a cheap fix and you will have to do it soon anyway so for 100-200 bucks installed. or do it yourself for less
Usually a black tail pipe is an indication of an engine running rich ( air/fuel mixture) caused by a bad oxygen sensor causing inproper fuel mixture, or caused by a restricted intake (dirty airfilter, carbon build up ect.) Most vehilcles will have some blackening of the tailpipe. If its excessive (smoking) have a mechanic look at it.
If it's only at start up, the turbocharger itself unlikely the problem. Most start up smoke problems are from oil or fuel leaking into the cylinders after turning off the vehicle off or before crank.
IT usally means that WATER is coming out of YOUR tailpipe wich is STEAM & running ruff is Because the smoke is coming from the DEAD cylinder because the head Gasket is blown(bad) {USALLY}
I would check and make sure that isn't just water. Condensation occurs on the inside of the tailpipe as the vehicle warms up... If you had gasoline coming into your tailpipe you would experience backfiring, extreme backfiring.
unbolt the old section slide it off and put the new OEM tailpipe on and put the bolts back on and tighten them up.
water in the tailpipe is normal. if you are trying to get a bunch out, just drive quickly up a steep hill.