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It can be water passing through a head gasket or possibly through a cracked head.
Look for excessive loss of coolant.
White smoke in a diesel can be from air in the fuel system Look for wet spots around injector lines and the filter, or from the engine not being warm enough to properly combust the fuel.
Simple condensation can occur in the crankcase, or exhaust system which can also be a source of moisture and create 'white' smoke in rare circumstances. This is more likely to happen when 'favorable' weather/temperature conditions exist and the vehicle has been sitting for extended periods of time.
Excessive loss of coolant/antifreeze into the crankcase, will result in contamination of the oil, a loss of lubrication which will result in damage to the engine in a relatively short period of time. The ethylene glycol [anti-freeze] in any substitutive amount will 'destroy' the crankcase oil and will destroy a running engine in short order.
It is running lean or it has water in the fuel try rubbing alcohol or heart water remover for diesel fuel.
Could also have a timing issue, improper fuel (gasoline) or have an internal antifreeze consumption issue.
Water ingress into the exhaust system is a definite - but the other reason white smoke is emitted from diesel engines is due to fuel starvation.
As above - by checking the coolant level will tell you if the problem is from the engine cooling system - If the fuel pump timing is incorrect you will probably find that there will be some loss of performance or power - bad starting etc!
The usual suspect for fuel starvation has to be the fuel filter or the fuel 'lift-pump' (depending on your fuel system whether it is a separate unit or built into the injection pump) -
Many drivers don't service their vehicle regularly and so the filter becomes partially blocked and this will slow the fuel rate to the injection pump - I have also known the wrong filter to be fitted (a 3 micron filter instead of a 30 micron filter).
However - some vehicles also have a small in-line filter which is situated in the brass 'ferrel' where the fuel feed pipe from the filter joins onto the injection pump and again will get blocked over a period of time.
remover the clip and pipe - then look up the tube on the injection pump to see the filter - if it has one!
You can remove it quite easily and either clean and refit it or leave it off.
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What causes white smoke at start up?
White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.White smoke at start up is due to moisture in the exhaust or on a diesel it can be normal due to the engine being cold.
What causes a diesel to overheat and to blow white smoke from exhaust?
usually a blown head gasket (most all the time white smoke on a a diesel engine means antifreeze in the combustion chamber)
White smoke from exhaust on start up from diesel engine?
corsa 1.5 diesel lumpy at start up with white smoke from exhaust returning to normal after a couple of minuets
What causes diesel to emit white-grey smoke from exhaust when starting and revving engine?
Injectors, timing, low cylinder pressure.
What does white smoke mean when it is coming out of the exhaust of your 2000 Ford F-350 diesel?
white smoke from diesel exhaust generally means you have engine coolant leaking internally in enginevery rarely , white smoke can indicate a problem with the turbo
What can cause white smoke from a diesel?
Moisture in the exhaust, or a cold running engine.
What is cause of Bluish white smoke from exhaust of diesel clio?
Dont filled oil so that no smoke
What causes white smoke to come from exhaust?
White smoke means head gasket, cracked head or equivelant.
When I start the engine of my '96 Peugeot 306 Turbo Diesel a big puff of white smoke comes out the exhaust but after start up it is fine Why is this?
there may be leakage in your coolant water cap at the time of starting vibration causes water to escape from it entering in to the engine causes white smoke
What causes white puffing smoke from a diesel engine?
The cause of white puffing smoke in a diesel is the crack pipe ventilator seal. Fix that it keeps the crack inside.
What causes the white smoke behind aeroplanes?
Contrails are the result of both exhaust fumes (jet fuel is similar to diesel fuel) and the effects of extremely hot exhaust gases reacting to the significantly colder atmospheric air.
Blue smoke from exhaust Renault espace?
My understanding of exhaust smoke is that Blue is oil, Black is unburnt fuel, White is unburnt diesel on cold start. The main question would be, how much smoke and when does it do it?
