Why does my car have blue smoke coming from the exhaust?

1. Lots of Blue Smoke When Starting Cars (not Diesel): Bad Valve Seals If you see blue smoke coming out of exhaust after you have parked your car for a while and the engine is not a diesel, the probable culprit is Bad Valve Seals. Each engine has valves that open and close.

What kind of smoke comes from a diesel engine?

Blue Smoke: Blue engine smoke is the rarest type of smoke emanating from a diesel engine. The presence of blue smoke is an indication of burning oil. Blue smoke should not be ignored but is common when starting an engine in a cold weather.

What to do if you get blue smoke from your diesel engine?

A great thing to do as a preventive for your diesel engine is a oil and fuel additive. Check out This stuff (link to amazon) it is the best in my opinion. Let’s take a closer look at what blue smoke could really mean and where to start the hunt fot the issue.

Can a new engine burn oil without blue smoke?

A new engine may burn oil without any evidence of blue smoke because of the good compression it can burn oil cleanly. However, it is not acceptable for any engine to burn large amounts of lubricating oil.

What does Blue Smoke mean on a diesel engine?

What causes black smoke from diesel exhaust?

If your vehicle runs on diesel, then over-fueling may be the primary cause of black smoke coming out of your exhaust pipe. When the fuel injector of a heavy duty diesel engine wears out, it causes the nozzle hole to enlarge or the injector needle to erode. This allows excess fuel to enter into the engine’s combustion chamber.

What causes blue smoke when starting a car?

When a car is producing blue smoke it means oil is getting into the combustion chamber for one reason or another and being burnt along with the normal gasoline. This creates a blue colored smoke which is passed down the exhaust system and then exits the car along with normal gases.

What does blue smoke from the exhaust mean?

Blue Exhaust Smoke. Blue smoke coming out of the exhaust pipe means that there is an oil leak occurring inside the engine. This is a problem for your vehicle because it means there is a reduction in lubrication occurring around the moving parts of the engine.

What causes white smoke coming from the exhaust pipe?

• 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.• Blue smoke from the exhaust: Oil is entering the system. It could be excess oil being burned or may point to worn valve seals, piston rings or turbochargers.

When do you start your car do you see Blue Smoke?

Often blue smoke will be seen when you first start your engine in the morning. Pay attention to how your car acts when you first start it for the day. If you don’t properly maintain your car, you will likely see blue smoke come from the exhaust.

What does white smoke from a diesel engine mean?

White smoke also needs to be checked immediately, because it can be a sign that your engine is on its last legs. For diesel cars it can mean that the engine timing isn’t right, that there’s a fault in your fuel injection system, or that the engine is overheating. And if you drive a petrol car and see white smoke, it’s really not good news.

What is blue smoke coming from exhaust?

Unlike black smoke that is an unbalanced mixture of air and fuel, blue smoke indicates that your engine is burning oil through the cylinders and that the oil is escaping out of your exhaust. If you’re seeing blue smoke coming from your exhaust, you want to pay particular attention to your oil levels.

What causes blue smoke from car exhaust?

Causes of Blue Exhaust Smoke. The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. This is most frequently seen in older or high mileage cars with worn seals and gaskets.

What causes smoke from exhaust?

Oil, transmission fluid and antifreeze are the three fluids most likely to be the cause of white smoke coming from your exhaust. Ruptured seals, leaky bolts and blown gaskets can expose oil to hot spots, making it burn.

What causes gray smoke from the exhaust?

Because “grey” is a colour that can be interpreted differently, seeing a cloud of smoke coming out of your exhaust in that shade can mean a lot of things. However, truly grey smoke is most frequently caused by burning transmission fluid. Put simply, when it comes to grey smoke, diesel cars tend to emit it when they lack enough oil.

What does it mean when smoke comes out of exhaust pipe?

Blue or Grey Smoke. If smoke that is coloured blue or grey is coming out of your car’s exhaust pipe, this generally means that your car is a little bit too thirsty on the oil.

What to do if you get Blue Smoke in your engine?

Recommendation is that if one is bad, all should be replaced at the same time. If Blue Smoke appears all the time your engine is running then the first thing to check is the PCV (Positive Crankcase Ventilation) Valve. If pressure builds up in the Oil Pan, the PCV Valve allows this pressure to release.

What causes smoke coming from exhaust pipe?

Why is my car smoking from the exhaust pipe?

Causes of White Smoke Coming from the Exhaust Pipe Condensation. The most common reason for white smoke from the exhaust pipe is condensed water that is getting vaporized. Leaking Intake Manifold Gasket. Now we are coming to a little bit more serious problem, but not too bad. Bad EGR Cooler. Blown Head Gasket. Cracked Cylinder Head or Block. Too Rich Fuel Mixture.

What can I do about blue smoke coming from my diesel engine?

Running your engine to the recommended service and maintenance schedule; replacing gaskets, filters and other consumables when recommended, will significantly reduce the chances of blue smoke appearing. Perkins has a wealth of knowledge about diesel engines amassed through 85 years of research, development and testing of its own models.

Why is there blue smoke coming from my Perkins engine?

Perkins recommends the use of the global Perkins Distributor network to carry out any diagnostic work, servicing, repairs or other work to Perkins’ engines. Blue smoke coming from your engine is a warning sign you can’t ignore.

What causes exhaust gas to come out of the engine?

Each engine has valves that open and close. These Valves are manufactured to open mechanically by pressure from a Rocker Arm. They let air and gasoline come into the engine. After the combination of air and gasoline has been burnt, they also let the exhaust gas out of the engine.

Can a clogged cylinder head cause blue smoke?

A clogged cylinder head can cause blue smoke. To clean it, remove the valve cover, and do the necessary cleaning. Also, clean the drain back holes carefully and recheck and reassemble them. After all of this, wait for 2 or 4 more days for the remaining oils to clean away.

Blue smoke usually appears in the morning when your engine starts up for the first time of the day. Blue exhaust smoke indicates that your engine is burning oil. Though this is primarily a problem in older cars, not taking care of maintenance issues can cause oil burning regardless of year.

Is it normal to have smoke coming from your exhaust?

While vapor or steam coming from the exhaust is completely normal, when smoke is coming from your engine whether it is white, black, grey, or blue and accompanied by a smell or not, it’s troublesome. Be sure to have your vehicle inspected immediately by a trusted technician to determine the cause of the smoke.

What causes white smoke from exhaust when idle?

What Causes White Smoke From Exhaust When Idle? If you have white smoke from exhaust when stopping or idling, your combustion chambers engine might get oil inside, which cause them to burn off the exhaust. This will cause white smoke, along with the idle issue.

What kind of smoke is coming from the tailpipe of a car?

Drivers must understand the concept of smoke from cars. Usually, it is water vapor or steam, since it is introduced into the chamber. For that reason, you will have the water dripping from the tailpipe. Drivers can also see the water in the fuel or a leak in the head gasket.

How to check for Blue Smoke on start up?

One way to check is to go about 50 mph and take your foot off the gas. The engine vacuum will suck the oil past the guides, showing blue smoke. Before catalytic converters this test was easier. SteveC76 July 6, 2016, 5:15am #7 Valve seals are worn out.

Why do I have blue smoke coming from my lawn mower engine?

Blue or white smoke coming from your engine usually indicates burning oil, which can be caused by: Overfilling the crankcase with oil Incorrect oil grades Operating engine at greater than a 15 degree angle Inoperative crankcase breather Crankcase air leak Blown head gasket Worn cylinder and/or rings

What causes black smoke coming from diesel engine?

Sometimes if you’re carrying a heavy load with a diesel truck you’ll see a small puff of black smoke, but even that should be minimal in modern well-cared-for engines.

What causes blue and white smoke coming from the engine?

Blue or white smoke coming from your engine usually indicates burning oil, which can be caused by: Overfilling the crankcase with oil. Incorrect oil grades. Operating engine at greater than a 15 degree angle. Inoperative crankcase breather. Crankcase air leak. Blown head gasket. Worn cylinder and/or rings.

What should I do if I see blue smoke coming from my exhaust?

If you see blue smoke coming out of the exhaust, all the time, PCV Valve is the frist thing you should check. If you observe blue smoke appearing in your car all the time, PCV (Positive Crankcase Ventilation) Valve will be the first thing you should check.

Why does my Briggs and Stratton lawn mower have blue smoke?

Other reasons for blue or white smoke from engines include: 1 Exceeding the engine’s oil capacity shown on dipstick 2 An obstruction in the breather tube (located behind the air filter) 3 Damages to the cylinder/piston rings

Why does my car have black smoke coming from the tailpipe?

Whether you are running a gas or a diesel engine, you shouldn’t see black plumes of smoke issuing from your tailpipe, and it’s a clear sign that the engine isn’t being cared for properly. Obviously, you want your car to use as little fuel as possible, so burning extra is a problem that needs a quick solution.

Why is there white smoke coming from my head gasket?

The white smoke, which is really steam, is a sign that there may be coolant leaking into combustion chambers where it gets burned off creating the steam. This is a common symptom of a blown head gasket or cracked block and immediate attention is required.

How much does it cost to fix engine Blue Smoke?

This repair can vary from one extreme to the next for example if the engine oil is too full the repair means letting some out to obtain the correct level should be around $25.00 (US) go ahead and change the oil while you are at, if its time.

What causes white smoke after a head gasket repair?

After the repairs to the engine are made to fix the leaking head gaskets the engine can then be started. Once started the exhaust heat will now start to burn off the coolant and water that was pushed into the exhaust system. When this fluid is heated it will come out the exhaust as white smoke or steam.

What does white smoke coming from the exhaust mean?

Thick white smoke coming out of the exhaust typically indicates a blown head gasket, a crack in the head, or a crack in the engine block. Cracks and bad gaskets allow the fluid to travel to places it shouldn’t be.

When does blue smoke come out of the exhaust?

You should always be aware of anytime your car makes a strange noise or if blue smoke starts coming out of your exhaust. Often blue smoke will be seen when you first start your engine in the morning. Pay attention to how your car acts when you first start it for the day.

What are the signs of a blown head gasket?

Blue exhaust smoke could also indicate head gasket failure, but so could worn rings, valve stem seals or a faulty PCV system. Discolored fluids are more subtle signs of a blown head gasket. Coolant-contaminated oil takes on a frothy consistency; it’s like finding a latte under your oil cap or in the valve covers.

Why does my car smoke when I start it?

When the car is started all the oil was going up into the valve cover but with all the sludge it could not get back into the oil pan. All the oil would end up in the valve covers because the holes were blocked up not allowing it to return. When this happens, the oil drains down the valves and into the combustion chamber and it smokes.

When does white smoke come out of an engine?

In these situations, you will typically see this white smoke come out on cooler days. The smoke should only be coming out in small amounts after you start your engine. Then after about 30 seconds to a minute, the white smoke should clear up. If this is the case then you have nothing to worry about.

What does it mean when there is smoke coming from your car?

Other than flashing red and blue lights, there might be nothing worse to see behind your vehicle than smoke. Billowing fumes almost always mean there’s something seriously wrong with your car. But the color of that smoke might help you understand what type of repair can help fix it. Many engine problems create abnormal or excessive exhaust smoke.

What does it mean when your car has blue smoke coming from the tailpipe?

Blue-gray or gray-white smoke. Blue-gray or gray-white smoke usually means the engine is burning oil. If you have a turbocharged engine, a faulty turbo seal could be causing this, but if you have a more common engine, it’s likely one or more of the following problems:

What causes a car engine to blow white smoke?

If you were to have a bad fuel injector, then it would cause white smoke to form because the proper amount of fuel did not enter the chamber at the right time. If you have a faulty engine control unit or one that simply is glitchy, it may throw off the timing of the fuel injector. This doesn’t mean the fuel injector is bad or anything.

What causes a car engine to overheat and smoke?

It also causes the engine to overheat again because hot gases are getting into the cooling system. White smoke can also come from a leak in the intake manifold runners, allowing water to be mixed with the incoming air.

Blue smoke from a car exhaust is generally a bad sign, and the cause of it will need to be repaired as soon as possible. It’s either a problem to do with the oil, or internal engine components.

What does it mean when your car smokes White smoke?

Thin white smoke (especially on a chilly morning) is nothing to be concerned about. Thick white smoke, on the other hand, can indicate a problem. In particular, it could mean that your engine is burning coolant, which could mean a problem with a head gasket or a cracked engine block.

What does blue smoke from a diesel truck mean?

Gray or Blue Smoke from Diesel Exhaust. Newer, low mileage truck owners can skip this paragraph, but many of us like to have a worn out beater truck laying around, or maybe your teenager bought their first car from a not-so-honest guy. Blue usually means one thing: you are burning oil.

What causes black smoke to come out of exhaust pipe?

White smoke or water vapor coming from the tailpipe, especially in the morning when the engine is cold. Black smoke or very dark smoke coming from the exhaust pipe. A new fuel odor or drop in MPG that seems to be coming from the exhaust pipe. The engine’s piston rings may be worn. The Fix: Replace piston rings. (This is generally not a DIY job)

What’s the difference between black and blue smoke?

While black smoke is caused by the burning of more fuel than air, blue or white smoke is generally caused by the burning of excess oil. Often, the cause of this smoke is something simple that doesn’t need to be addressed.

What’s the best way to smoke blue smoke?

When you monitor the smoke coming out of the stack of your smoker, the harder you have to look to spot it, the better. There should only be a trace of smoke coming out of the stack, and while it need not be “blue” exactly, it should most definitely not be thick, white and fluffy. The smell of the smoke produced should be notable, but subtle.

What causes a car engine to smoke?

A car engine can smoke for several reasons. If the smoke is blue, it means it’s burning oil. This could be caused by valve stem seals, worn rings, a plugged PCV valve, not changing the oil for extended periods, too high of an oil level or transmission fluid being sucked into the intake manifold from a bad vacuum modulator.

What does black smoke from an engine mean?

Black or grey smoke usually means that the engine isn’t running as healthily as it should be, but the associated problems shouldn’t be too time-consuming or expensive to fix.

Why does my car exhaust have a white smell?

The answer is either transmission fluid or burning coolant. In transmission fluid case, the engine is sucking the fluid through a vacuum hose, which leads to the color white from smoke. The exhaust will also have a burned oil smell.

What causes blue smoke when you blow a turbo?

Blue smoke will suddenly appear in a big cloud if your car blows a Turbo. A blown turbo is either the turbo casing has damaged or a broken oil seal in the Turbo. In both cases they let oil into the intake of the engine. 4. Blue Smoke Comes With Transmission Fluid Loss

Why does my car have white smoke from exhaust when starting?

Frequently Asked Question about White Smoke From Exhaust Why My Car Has White Smoke From Exhaust When Starting? White smoke can be caused by many reasons. But if you get white smoke from exhaust at startup, it might be from these reasons: A cracked or warped cylinder head. Head gasket failure; Cracked engine block

Why does my car smell like Blue Smoke?

What happens is that the piston rings or the valve guide seals or other components of the engine are worn or broken, causing oil leaking. The oil will flow into the combustion chamber, then it is being burnt together with the fuel, creating blue smoke. It also creates an awkward smell and is not good for your health to breath in.

Is it bad to have smoke coming out of car exhaust?

If it’s still producing smoke, it might be worth checking out. Any smoke that comes out of your exhaust means that you need to get a garage to check over your car, as it can be unhealthy for your engine or the environment – or both.

Black or grey smoke usually means that the engine isn’t running as healthily as it should be, but the associated problems shouldn’t be too time-consuming or expensive to fix.

What does white smoke mean on a car?

Should be no build up and insulator should be clean. White smoke would be steam which is indicative of a cooling system leak into the cylinder. You may want to check the oil and make sure it is not milky looking. Cooling leak is either cracked head or head gasket.

Why do I have white smoke coming out of my exhaust pipe?

White smoke is the issue when your car releases white smoke from exhaust pipe. White smoke can be a big problem or not, depending on the thickness. The white smoke is the result of normal condensation which builds up inside the exhaust system.

What does blue smoke coming from exhaust pipe mean?

Blue Exhaust Smoke You will no doubt be quite alarmed if you detect blue smoke or bluish gray smoke emanating from your exhaust pipe. You are right to be concerned. If you are noticing blue smoke from the exhaust, it means your engine is burning oil due to an oil leak.

Symptom: Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn’t have the same power as it used to. The PCV system is not working properly.

Why do I have white smoke coming from my tailpipe?

This results in white smoke coming from the tailpipe, usually accompanied by a sweet smell. It’s also possible that your engine will overheat. Solution: Your engine will need to be partially disassembled, have the gasket replaced, and then be reassembled.

What does it mean when you have white smoke coming from your engine?

But excessive white smoke likely means coolant is leaking into the engine combustion chambers. This is usually caused by one or more of the following problems: Leaking or blown head gasket: The head gasket is located between the engine block and cylinder head. It seals the combustion chambers, as well as the coolant and oil passages.

When do you notice white smoke from exhaust?

When you notice any kind of smoke from your exhaust be it white smoke from exhaust on startup or when accelerating and even when idle, they all are indications that, your vehicle is having one issue or the other which need your attention. How serious this will be, is totally dependent on the colour and type of smoke that is coming out.

What causes blue smoke from a stuck PCV valve?

The oil gets mixed with the Gasoline and Air and gets burnt creating the Blue Smoke. PCV valves are expected to be replaced at least every two years / 30,000 miles if not more often. With a stuck PCV Valve, the throttle body and intake manifold will end up covered with oil.

What does Blue Smoke on start up mean?

Every single one of those cars had coked up valve trains and clogged oil return passages. When a mechanic was in between jobs or held up on parts they would grab one off the back lot and start in with the PITA job of cleaning the valve train up and opening up the drain holes.

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