I wouldn’t necessarily say the white smoke would be from the DPF. If you have ever been behind a car that is going through the regeneration cycle of the DPF , you will see the amount of black smoke that will come out from it. Diesel cars will usually produce white smoke from the following three symptoms. You may commonly see white smoke coming from the exhaust on cooler days upon starting.
This is likely due to steam created due to the engine burning off the condensation. Surface temperatures inside the DPF can exceed 6Degrees Celsius , at which point the soot turns into a hot white ash. Some of this ash is blown out of the exhaust whilst some is retained inside the core of the DPF. Now, every time the DPF regenerates , it produces huge amounts of white smoke. Also, these regenerations are occurring now very very often, every 1- 200Km.
In a Diesel engine with a Diesel particulate filter ( DPF ) system, high-sulfur fuel causes white smoke containing odorous and harmful pollutants during DPF regeneration. Do you get clouds of white toxic smelling smoke when your car regens ? CDTI white smoke and burning diesel smell under the bonnet, DPF regeneration. In my case exhaust pipe that mounts on the turbo exit was only partially fitted and had no sealing ring. One cause of white smoke from the exhaust might be the engine leaking coolant.
If the engine leaks coolant , it will be burned by the heat of the engine and then come out as smoke from the exhaust. A problem with antifreeze might also be causing white smoke to come from the exhaust. This will cause white smoke , along with the idle issue.
What does white smoke from motorcycle exhaust mean? Why is there white smoke coming out of my exhaust? Everything You Nee For Anything You Drive. We Are Your One Stop Shop. A cracked engine block or cylinder head will produce the same effect.
One of two conditions is responsible for white smoke blowing out of your exhaust. First is normal condition (so you don’t have to panic) and the second is a not so normal condition which should be fixed as soon as possible. Well except your lungs lol. White smoke is a sign of water vapor or fuel that has been atomized but not burned. His truck is trying to complete a regen process in which the minute run time to or from work will not be enough to let it burn completely out.
White smoke is usually either water vapour or (in a diesel car) unburnt (as opposed to partially burnt black coloured) diesel fuel. My understanding is that when a turbo oil seal fails it dumps a lot of engine oil into the combustion process meaning that diesel is not burnt - and hence smoke that appears mostly white. If your techie has ruled out a blown gasket, the white smoke could be due to poor combustion due to injection timing, faulty injector(s) or maybe low compression in a cylinder resulting in the fuel passing right through. It takes hot exhaust temps to light off the fuel injector to the DPF , and it needs more than a couple of seconds of time to do it.
This is why when many are experiencing a power loss, take the pickup out on the highway and get into it for a little while. That should kick in a burn off. This car is months old and is my little luxury in life and after up grading from a perfect older plate diesel evoque (pre add blue) is now is one of the worst purchases i have ever made. I have parked the car a number of times and seem white stinking smoke coming from the exhaust without the engine running. My parents car has been smoking like a pig for the last few months, Diagnosis.
Garage condemmed the DPF and replaced it. I notice white smoken coming from the exhaust pipe while driving and cknsidered it was an engine problem. There is a button on my dash which say DPF. I get intermittent white and blue smoke occasionaly, I think when the aftertreatment injector kicks in.
It smokes for a little while, puffing out about every half secon then stops. I might see it again that same day or might not see it till the next day. Its not consistent at all. The black smoke may show there is a return fuel line which is obstructed.
Fuel injectors and sensors might also be damaged. A final problem which can be diagnosed from black smoke is problem with the air filter. This means that part of the diesel fuel remains unburnt and turns into black soot. Zafira billowing out smoke from exhaust Motoring.
If the car starts a DPF regeneration, extend your journey if need be until it has finished the job (takes around 5-mins of driving, in my Alfa at least), and give it some beans to help it out.
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