The black smoke is full of particulates that are basically large diesel particles that normally would be burned as fuel. Any way you look at it, a diesel truck emitting black smoke is not going to be getting the optimal fuel mileage it should be getting. Most common causes of black smoke are faulty injectors, a faulty injector pump, a bad air filter causing not enough oxygen to be supplied , a bad EGR valve causing the valves to clog or even a bad turbocharger.
Some of these are easy fixes. White Smoke - white smoke means that the fuel that is being injected into the combustion chamber is not being burned properly. The common causes that produce white smoke range from something as simple as low engine compression or water in the fuel to the fuel pump timing being thrown off because something is starving the fuel from getting to the pump in the manner necessary for the pump to time and work correctly.
Blue Smoke - blue smoke results from burning engine oil. This is a mechanical problem because engine oil isn't supposed to be getting into areas where it can be burned. Consequently, a proper running diesel engine should produce no visible smoke from the exhaust. If there is smoke coming from the exhaust it could indicate a more serious problem with the engine. This article will help diagnose the underlying causes of diesel engine smoke.
Diesel engine smoke comes in three colors: white, black and blue. Consistent smoke coming from the exhaust most likely indicates a deeper internal problem with the engine. Newer electronic diesel engines with common rail injectors simultaneously match the speed of the turbo with the metered flow of diesel fuel into the cylinder. White smoke coming from the exhaust usually points to one point of failure: the injectors. Usually, white smoke indicates that the diesel fuel is not burning correctly.
Unburned diesel fuel will make its way through the exhaust completely unused. Water entering combustion spaces will also create white smoke. Faulty head gaskets and cracked cylinder heads or blocks are a common cause of water entry, and are often to blame. Unfortunately, expensive mechanical repair is the only proper solution here.
It is evident as pressure coming out the crankcase ventilation tube, valve cover breather or dipstick tube. Engine oil leaks can also result from excessive cylinder blowby, as the excess pressure finds the weakest point. Some causes include. Cost Effective Maintenance has demonstrated that excessive blowby in these units can be minimized at low cost and without downtime. Diesel Smoke tells YOU a Story Diesel smoke like blowby and oil use is a worrying engine symptom which indicates that an engine is not running well, and its service life is likely to be shortened considerably, unless remedial action is taken.
This pack will stop your diesel blowing smoke or your money back! Simply add to your fuel and oil and the problem is solved. Should my engine be blowing white, blue or black smoke? What does it mean if my engine is blowing blue smoke?
Worn valve guides or seals Wear in power assemblies i. Some causes of this include Faulty or damaged injectors Incorrect injection timing could be a worn timing gear or damaged crankshaft keyway. If you suspect you might be burning oil, Stiction Eliminator is an excellent place to start. It works by removing the built-up sludge and varnish created by burnt oil and lubricating your engine.
The stiction eliminator can also clean other engine components such as the oil pump, HEUI injectors, pistons and more. This high-quality oil treatment can help reduce friction in the engine, lower engine operating temperatures and make the engine run efficiently and smoothly. Stiction Eliminator belongs first on the list due to its money-back guarantee and ease of installation.
Another option you can try is to run a compression test. Many auto parts stores offer compression test units for rent, with your money back when you return the tool. You could also try replacing your PCV valves. These valves can sometimes go bad and suck oil into the intake, depending on the vehicle. White diesel smoke can sometimes be a sign that there is a larger issue with your engine.
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