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Have you noticed BLACK SMOKE coming out of your car's exhaust? If so, then you may be wondering - is this normal, or is something wrong? Well, that's exactly what we'll figure out in this video. #usedcars #usedcars #automotive #carservice This video covers the following questions and topics: 00:00:01 Introduction 00:00:55 Dirty Air Filter 00:01:22 Dirty MAF Sensor 00:01:48 Cracked Intercooler or Hoses 00:02:43 Clogged Fuel Filter 00:03:39 Bad Injectors (Nozzles) 00:04:19 Faulty Fuel Pressure Sensor 00:04:50 Faulty Lambda Probe 00:05:51 DPF Filter & Regeneration 00:06:45 Sooty EGR Valve