White and blue smoke coming out of exhaust
When I stepped on the gas, the vehicle did not want to accelerate. Now, when I step on the gas, a lot of white and blue smoke comes out of the exhaust.
Experienced mechanics share their insights in answering this question :
Hi. The first thing that comes to mind is the turbo seals. When they leak, pressurized oil enters the intake of the engine. Check your oil level often. Repairing or replacing turbo’s can be very expensive. The other possibility is the head gasket. The smoke will be white if coolant is entering the combustion chamber. I would not drive the car until it is checked out. More damage can be done in both cases. If you would like the smoke issue inspected, consider a technician from YourMechanic.
How to Identify and Fix Common car Problems ?
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White smoke from the exhaust: This could be steam caused by condensation in the exhaust pipe or a more serious issue caused by an engine coolant leak. Excessive amounts of white smoke could indicate head gasket failure. Blue smoke from the exhaust: Oil is being burned.
Pro-Tip: Blue smoke during acceleration means your vehicle`s piston rings may be damaged. During deceleration, however, blue smoke means the cylinder heads` valve guides are damaged. Either way, something is damaged that shouldn`t be.
Blue exhaust smoke. Bluey/dark grey smoke is a clear sign that your engine is burning oil. The liquid can leak into the combustion chamber where it is burned along with fuel. You`ll probably notice your car misfiring when you turn the keys in your ignition, or find your vehicle shakes more than usual when idle.
White smoke usually means coolant is getting into the combustion chambers of your vehicle. This generally happens because of a cracked or leaking head gasket, which allows coolant to seep into your cylinders. In extreme cases, you will need to replace your head gasket.
Anyway, achieving blue smoke means your coals are red hot. At this stage, the majority of your coals are likely burning thoroughly and more evenly, whereas white smoke is generated by having just the outside of your coals on fire which makes for uneven heat.
Other signs that your oil is leaking into your fuel and burning are misfiring spark plugs and rough vibrations while idling, but the blue smoke is an unmistakable, tell-tale sign of this issue.
The possible sources of blue smoke are: Worn valves or guide seals. Failure to change your oil or oil filter regularly enough. Damage or wear to pistons.
A blown head gasket is the most apparent reason for blue exhaust smoke. Tell-tale signs of a blown head gasket include coolant fluid under the car, engine overheating, milk-colored engine oil, and poor performance.
Piston wear and worn valve seals are both common reasons for blue exhaust smoke. If these parts are worn out the oil will start to leak which will cause the exhaust smoke to turn blue. Other reasons for the smoke to be this colour could be a very dirty oil or air filter.
Another cause of blue smoke is rust from an old catalytic converter. Blue smoke on occasion won`t harm your car immediately, but regular occurrences will degrade performance over time by using up necessary resources like oxygen and fuel needed to go faster or further before refilling gas tanks.
Get a new turbocharger for your car!
When these seals fail, the oil being fed to the turbo can make its way into the engine via the intake. The burning of this oil leads to blue smoke from the exhaust. Fixing a turbo requires it to be rebuilt or replaced.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
I have white milk coming out of my exhaust pipe but I don’t see it mixing in my oil pan when I check my oil
ANSWER : In most cases, the white smoke is an indicator of coolant finding a way into the combustion chamber. This could happen through a damaged head gasket or a crack in the cylinder head or engine block. Most of the time, this would also be followed by milky oil or overheating problems. However, it could also be a problem with the EGR system, or an extremely rich fuel trim. The best thing to do is have a professional mobile mechanic complete a smoke coming from exhaust inspection, so they can pinpoint the source of your issues and recommend a repair.
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Thick white smoke from exhaust, change thermostat, fan doesn’t come on, top hose stays cold,
ANSWER : Hello, thanks for writing in about your Geo Storm. If you are getting white smoke from the exhaust then you have a blown head gasket or cracked head. I suggest having a certified mechanic, like one from YourMechanic, diagnose the smoke firsthand by pressure testing the cooling system to see if the head gasket is blown.
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Hello, i had my head gasket repaired and after 8 months it has started making white smoke come from exhaust again and I can smell
ANSWER : Hello, thank you for writing in. With white smoke coming from the exhaust, the smell of coolant, and the (very likely although unmentioned) lowering of the coolant level, it is quite apparent that the coolant is making its way passed the head gasket and into the combustion chambers. Unless you have a cracked head, engine, or other serious damage, the head gasket is very likely the issue. Make sure you are adding coolant to compensate for the loss. Low coolant levels will not give you accurate temperature readings on your dashboard, as the sensor is located at the top and needs to be submerged in liquid to give you an accurate reading. As far as repairing the issue, replace the gasket again, and in the process inspect the old gasket for signs of failure or indications on what caused the leak the second time. If replacing the head gasket again does not solve the problem, you know you have a larger issue with the engine and can take further diagnostics from there. For more help from our technicians, contact our service department to schedule an appointment.
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Car exhaust is giving white smoke when I start the car everyday.
ANSWER : Hi there:
Typically white smoke is an indicator of coolant or liquid other than oil or fuel inside the combustion chambers. This can be caused by a blown head gasket (if you had an overheating issue recently) or simple air to fuel ratio issues caused by a mass air flow sensor or exhaust system sensors not working correctly. The best way to know for certain what’s causing these issues is to have a professional mechanic complete a smoke from engine or exhaust inspection.
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Slight white smoke coming from the engine
ANSWER : If there is underhood smoke, that can signify that something is leaking. Typically, that will be engine coolant or engine oil. Some leaks can be relatively easy to fix. If that is your circumstance, it will be advantageous to get the source of the leak identified and repaired as soon as possible. If you do have oil leaks, as many leaks as possible should be repaired because leaking oil can damage external engine components such as rubber motor mounts. Also, if oil is leaking onto a hot exhaust manifold that can create unhealthy fumes (as the oil burns off) and is also a fire hazard. If you want the sources of the leaks identified and the repair estimated, simply request a leak diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.
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White smoke coming out from exhaust when throttled.
ANSWER : Hello, thank you for writing in. The lowering of the engine oil is a sign that the oil is being burned in the engine. For the oil to get into the combustion chamber it must pass through a bad piston ring, a bad valve cover gasket, or a failed valve seal. The hotter the engine gets, the oil becomes thinner. The new oil may be seeping through components in which the previous oil was not able to pass. There is also the fact that the different oils lubricate and condition differently, and the sudden change may have lead to a premature deterioration of these gaskets and seals. The engine may need to be pulled in order to perform some of the possible repairs. Further testing will tell if this is needed. For more help resolving the issue, or obtaining a quote, contact our service department.
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I have white smoke coming out of my exhaust pipe. Could it be a bad ccv?
ANSWER : White smoke makes me worry about the head gasket. If there is coolant getting into the combustion chambers, it makes a nasty smelling white smoke Burning coolant can have a very strong smell, from a sweet kind of odor to a harsh acrid smell that burns your eyes and is usually accompanied by overheating. If that’s what you have you need to check for head gasket or manifold gasket problems. Oil smoke can appear whitish-blue and has an oily smell to it. If you have oil smoke, you could have problems in your crankcase ventilation, valve stem seals, or piston rings. Burning oil will foul the plugs and lead to a misfire. You need to get the source of this smoke checked out. It will probably also be the source of your performance problem. If you contact Your Mechanic, you can have a technician come to your home or office to check out your BMW and advise you as to the next step.
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A little bit of white smoke comes from the motor when I get off the highway and come to a complete stop. It smells like burning oil.
ANSWER : Hi there. It sounds like you may have an oil leak(s). The smoke and smell you are experiencing is the oil being burned off by the engine and exhaust heat. The source of the leak may be slightly difficult to pinpoint if it has been going on for a while and may require the experience of a qualified technician. Some of the possibilities are valve cover gaskets, cam seals, crank seals, rear main seal, and so on.
YourMechanic has several technicians that can assist you with an oil leak inspection, and service your valve cover, cam seal, or crank seal as necessary. Upon looking at the vehicle we can provide an accurate estimate and direction of repair.
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