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. A small puff of smoke during quick acceleration is acceptable with older diesel engines due to a lag before the turbocharger’s air flow can match the increased volume of diesel fuel injected into the cylinders. Diesel Engines Blowing White Smoke from Exhaust. WHITE SMOKE occurs when raw diesel comes through the exhaust completely intact and unburned.
Some causes of this include. This is a case where you’ll probably want to call in the diesel pros, but here’s a diagnostic tip: While the engine is smoking , hold your hand over the exhaust outlet for seconds or so. Don’t restrict the exhaust, just attempt to coat your fingers with the smoke. Continuous white smoke while driving is one of them.
If you are having a diesel , white smoke may be unburned fuel or coolant going through the engine. But mostly, it is the incorrect injector timing in the cylinders. To be more specific, the white smoke you see is your diesel fuel , unburne or only partially burned. They range from faulty fuel injectors to retarded fuel injectio n timing, or even low compression. If the problem is one or more dirty or malfunctioning glow plugs, then the smoke will usually go away after the engine heats up and begins to sustain its own combustion without them.
This unburnt diesel contains minor toxins that may sting your eyes. It is normal to see white smoke from the exhaust during sub-zero and colder weather, at least until the engine warms up. This typically occurs due to the engine being too cool to burn the fuel, often resulting from low compression in one cylinder, problems with the fuel injection timing or a defective fuel injector. Marine diesel white smoke from exhaust Lets face it, any time we see smoke coming out of our engine we start to see dollar signs flash before our eyes however there are a number of things that could cause your engine to smoke.
White smoke generally happens when there is not enough heat to burn the fuel. My truck stated blowing a continous stream of white smoke out the exhaust. I checked the crank case oil and it did not use any oil. I am guessing that I had an injector stuck open and after stopping the engine it filled the cylinder with fuel and locked up the engine.
Old diesels will smoke white on start up and clear up as they warm up and get some compression. If your car has a diesel engine, then the white smoke might be indicating that there is a problem with the fuel pump injection. When the fuel pump injection timing is off, it is difficult to determine the root cause.
Volkswagen, Porsche, and all turbo diesel owners and enthusiasts. Come join the discussion about. This is usually the last color of smoke you want to see, particularly on gas cars. If the smoke is thin, and goes away relatively quickly, than it is merely condensation. However, thicker, longer lasting smoke is a much larger headache.
Your engine is more than likely burning coolant. An engine burning coolant can be easily determined. First question, do you have to regularly add coolant?
I had it towed to a trusted shop where the mechanic pulled my injectors and sent them off for testing. Trying a map sensor first. Engine has a dead miss. Cold start and idle is fine, except for the miss.
This is due to the fact that colder air, which is more dense than warm air, lowers temperatures in engine cylinders at the end of the compression stroke. Normally, it would happen at startup in cold weather with lower compression engines and retarded timing. The turbo gate is free.
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