1984 Mercedes-Benz Mercedes Benz 300 Class "black unburnt fuel accelerating" Questions

...attempting to accelerate this is a1989 230e model, it produces a black smoke Black smoke is burning oil, blue is unburnt fuel. If you are burning oil sound like valve seals in the head are

...specially when I accelerate, and I believe there is a loss of power as its 3.1 but drives like 2.4 ? Any reason please advise The black smoke is unburnt fuel could be miss fireing or badly carbon ...

black smoke is this a problem ? no thats quite normal its just some unburnt fuel being passed as mixture is enriched on accelerating if it continues after you ease up there could be a problem could be

...black specks when first started (I was told this was unburnt fuel and the engine was misfiring.) A tune up took care of the black stuff but the acceleration still seems to be there along with poor ...

...bad injectors , mass air flow or what? please help Thanks, Black smoke points to unburnt fuel. I would start by replacing the spark plugs and wires if you have not done so in the last couple of

...black smoke is unburnt diesel fuel- lift your foot. When I was learning to drive diesel trucks (many years ago, in one of these trucks) I was taught that when going up hill under load, I should lift ...

...black smoke you may also notice a whistle/whine or sucking noise when you accelerate and a lack of power / lumpiness at around 2000rpm. Hope that helps! Graham Check the EGR vale, examine the hose ...

...BLACK tailpipe smoke ... that means unburnt gasoline. (Blue smoke is OIL, white smoke is WATER). Put the parking / emergency brake ON. 1. Remove air cleaner assembly from intake, use a carb cleaner ...

...unburnt fuel and fores it back through the engine, when they fail you get a big loss of power and black smoke from the exhaust, is the back of the car all sooted up? EGR vavles cost around £130 ...

...black smoke was unburnt fuel most likely from all the cranking and confused PCM and its imputs trying to determine fuel stratagy. Those noises are something you work on after you get the engine ...