Thinking about what you said regarding the clouds of black soot from the rear, you may want to think about a fuel system flush, for this to work tho u would need it to run atleast once to pull it through the system.
Regarding non start, an engine will sound different depending on if its no getting fuel, failing on compression, or being chocked, or in the case of petrol (no spark).
Diesel engines work on pure compress, glow plugs warm the air only.
All of the above can be diagnosed through sound, lack of compression means a higher pitch and higher turnover rate, may also hear signs of leaking air.
Glow plugs not working may have similar symptoms too so atleast you can narrow it down a little.
Lack of fuel is less obvious, similar sound but best thing to do is look for unburnt fuel coming out of the exhaust, likewise for over fueling/flooding.
Lack of air would slow turnover rate as there is a negative vacuum, you can hear the engine physically struggling to turn over. (check for pipe kinks and blocked air filter)
lack of fuel, likewise on fuel filters, check for deposits, fuel pump may be leaking or not have sufficient power to deliver fuel, check battery, should register 13 13.3v across +/-
other than the above, it could be a whole array of sensors for engine position, air pressure, fuel relay, emission, or if worst comes to the worst it could be injectors or pump.
Random question, you use any out of the norm petrol stations recently, might be dirty fuel blocking fuel lines
Edit: all the smoke could also point to EGR being stuck open
Regarding non start, an engine will sound different depending on if its no getting fuel, failing on compression, or being chocked, or in the case of petrol (no spark).
Diesel engines work on pure compress, glow plugs warm the air only.
All of the above can be diagnosed through sound, lack of compression means a higher pitch and higher turnover rate, may also hear signs of leaking air.
Glow plugs not working may have similar symptoms too so atleast you can narrow it down a little.
Lack of fuel is less obvious, similar sound but best thing to do is look for unburnt fuel coming out of the exhaust, likewise for over fueling/flooding.
Lack of air would slow turnover rate as there is a negative vacuum, you can hear the engine physically struggling to turn over. (check for pipe kinks and blocked air filter)
lack of fuel, likewise on fuel filters, check for deposits, fuel pump may be leaking or not have sufficient power to deliver fuel, check battery, should register 13 13.3v across +/-
other than the above, it could be a whole array of sensors for engine position, air pressure, fuel relay, emission, or if worst comes to the worst it could be injectors or pump.
Random question, you use any out of the norm petrol stations recently, might be dirty fuel blocking fuel lines
Edit: all the smoke could also point to EGR being stuck open
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Crankcase pressure comes from combustion gasses leaking past the rings and the breather system failing to deal with it.
