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2. Smoke, Either Black, White or Blue, Is Coming from the Engine. No matter what color smoke you see, there's bad news. White smoke can indicate a blown head gasket or cracked cylinder head, both serious, potentially car-killing problems. Blue smoke usually means you have worn valves or piston rings leaking oil into the combustion area of the ...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. Possible causes: The engine's piston rings may be worn. The Fix: Replace piston rings.Blown Gasket Head: When you have a blown gasket head, you'll have fuel leaking in the engine compartment. A bad leak may drip right out below the engine manifold and be visible to you but if it happens, you'll get the white smoke in your exhaust as the fuel mixes with the coolant. This is also going to lead to an overheating engine fairly ...Well, antifreeze leaking with engine smoke indicates a leak with your cooling system. This leak allows engine coolant to escape and hit hot components, producing smoke. Common causes are a split radiator hose, failed water pump, cracked radiator, head gasket leak, or failed thermostat. Fixing it requires finding and repairing the leak, flushing ...Engines I have done with moly rings worked out fine, some smoke from the assembly oil but once that was gone the smoke was too. I have always been told that moly rings are the most forgiving, and chrome the hardest to get to seat correctly. -----Dave 70 chevelle ss396 conv 66 chevelle ss396 hdp/conv 72 chevelle TC member #493Symptoms: Cold starts; no smoking, Warm up up to 15 min while adjusting timeing, idle or whatever, no smoking. Drive car down the highway a number of miles & let it idle & it puffs blue smoke out the exhaust almost continous, seems one side more than the other. ... Some engines have issues with intake manifold fitment, vacuum leaks along the ...If dust or dirt clogs an air filter, not enough air will flow through the engine. As less air reaches the engine cylinders, more fuel gets burnt. This is one of the most common causes of poor fuel economy and excessive black smoke emissions coming from the exhaust. 2. Bad Oxygen Sensor.If the screw causes chattering during setting, repair the screw and lever as required. Hold the torque wrench in a position that allows the direct view of the dial. This is to make certain that the reading on the dial is accurate. Torque Value: 14 n.m. [125 in-lb] STC Engine Outer Base Circle (OBC) Injector and Valve Adjustment Sequence.Loose fan belt. Low oil levels (including engine noise) If you identify smoke rising from your vehicle, safely pull to the side of the road and seek immediate help. For safety reasons and to avoid further damage to your engine, do not attempt to drive your vehicle. What to Do If Your Engine Starts Steaming.A smoking engine is a serious thing. If your Jeep Grand Cherokee's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Grand Cherokee's engine would smoke include overheating, burningWhy do ATVs smoke? Smoke can be an indication of bad cylinders, seals, gaskets or something similar, usually accompanied by gasoline or oil burning in the engine. The cause isn’t too hard to figure out based on the timing and color of the smoke. When faced with a smoking four wheeler, don’t continue riding.Engine stop smoke additives are a crucial solution for vehicles experiencing exhaust smoke issues due to oil burning. Often encountered in aged engines or those with worn components, excessive exhaust smoke is not only environmentally unfriendly but also a telltale sign of engine inefficiency.Black exhaust smoke can be very common on diesel engines, due to soot build-up from either bad quality fuel, unburnt fuel, or a clogged-up DPF (Diesel Particulate Filter). Blue …A smoking engine is a serious thing. If your Mazda 6’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your 6’s engine would smoke include overheating, burning oil, or a melting wiring harness.Acrid smoke in the Engine Bay. I have a tricky situation with my son's 15year old Honda CRV. First thing in the morning, after a freezing night, he left the engine running to warm it up only to be warned by a panicking neighbour that there was acrid smoke - and lots of it - coming out of the radiator from the engine bay.The wind tunnel is a critical tool in the automotive industry for testing the aerodynamics and performance of vehicles. It allows engineers to simulate real-world conditions and ev...Slowly accelerate and decelerate the engine. Check the color of the smoke coming out of the exhaust pipe and whether it's associated with acceleration or deceleration. Once you know the color of the smoke, head to the corresponding section below. A bad fuel injector can "flood" a cylinder and cause black smoke.The Engine Flush will remove any unwanted contaminants from your vehicle's engine and restore it to peak performance. The #1 cause for burning oil is a dirty and corroded engine. This oil flush will reduce the speed of corrosion and seal your engine's gaskets. 3. Lucas 10001 Heavy Duty Oil Stabilizer. View on Amazon.The spilled oil will accumulate dirt on the engine component as you drive. This is quite true for vehicles with no underneath cover. Spilling oil on engine can be dangerous if you do not clean it. If the spilled oil touches the drive belt, it will cause the belt to pull off or break. If this happens, the power steering, the alternator, the AC ...This means too much fuel are being thrown in but not enough air to get the fuel burned. Mixing more fuel than air is a bad thing as more fuel gets unburn and exits the car as that deadly black smoke. Studies suggest that diesel particulates are found in black smoke. Such particles should be burned in the combustion chamber for better fuel ...You know that you need to replace your smoke detector’s batteries when they run out, but you might not realize that you should also replace the smoke detector itself every 10 years...However, to diagnose bad valve seals let the jeep sit and warm up and drive it a little. Stop and turn the engine off and wait about 10 minutes then start it back up. If you see smoke right away, then the seals might be incorrect and oil is leaking down through the head and getting burned up in the cylinder.Th smoke seems greyish in colour. As it is bellowing this smoke, the engine will be idling well, but i noticed the fan will be running even though the temperature will be quite low. If i continue driving and thrash the car (drive like a maniac, and changing gears late around 4000rpm to a sped of about 100km/h for about 300m it completely stops ...Extra Oil in the Sump. It’s possible for oil change professionals to overfill the engine with new oil. If too much oil is added, the engine will start to smoke. Too much oil in the sump can cause the exhaust to emit a bluish-white color smoke after you’ve just changed the oil. During an oil change, it’s common for the fresh oil to ...While smoke emanating from car engines can be an unsettling sight, it is often a sign of an overheated engine. This typically occurs when there are faulty wire casings or heated residues on the engine block, which can cause temperatures to rise beyond their safe limits. Additionally, certain liquids such as oil, transmission fluid and …A starter that smokes when trying to start the car usually indicates a problem such as a short circuit, damaged wiring, faulty components, or unusual resistance from the engine. 1. Blown fuse/relay. A car’s electrical system is made up of a series of circuits that deliver power to the various components of the car.Take off your headgasket and a new one will appear for purchase at the mechanic's shop. Fleetari doesn't fix the entire car anymore. You have to bring him the broken part, put it on his counter and either have him repair it (this gives the repaired part a random health percentage) or buy a new part off the shelf.Step 1. Raise the car hood if you smelled burning oil while driving the car. Look for oil that may have been spilled on the engine or exhaust manifold during the oil change. If you find a spill, wipe off as much as you can with rags. The …The most common causes of this trouble are: 1. Oil spillage. If the car smoking under hood but not overheating, it could happen due to the presence of oil outside the engine where it does not belong. Oil could go there when you are not careful when filling up the gas tank. Or, a spill could occur when you are adding oil to the crankcase.If you’re a fan of bold flavors and delicious snacks, then venison hot sticks should be on your must-try list. These savory treats are perfect for grilling or smoking, and they mak...A lawn mower engine will puff out black smoke when the fuel and air mixture is too rich. Because there isn't enough air, combustion is incomplete, and the unburnt fuel in the combustion chamber turns to smoke. You see the same phenomenon when you burn leaves and pack them too tightly to allow air to circulate. Video of the Day.If your car is smoking, pull over. Then quickly run your eyes through the warning lights and gauges to see if the engine is overheating. Which of the warning lights is on? You can also do a quick physical inspection. Chances are that you’ve run over a plastic bag that is burning on the … See moreDifferent colors of smoke can indicate different problems with your engine. Black Smoke. This is generally caused by an issue in the carburetor and fuel systems. The usual cause is a fuel-to-air mixture that is too rich, meaning it has more gasoline in the mix than it should. This in itself can have two probable causes - either your air ...A smoking engine is a serious thing. If your Chevy HHR's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your HHR's engine would smoke include overheating, burning oil, or a melting wiring harness.The four most common causes of a burning smell or smoking from an electric lawn mower are faulty wiring, worn out engine, overheating, and a jammed blade. Each of these issues can cause overheating or possibly a fire in your electric mower. If you're interested in learning more about how to deal with a burning smell from an electric lawn ...From ghostly white to a deep, sooty black, the variety of smokes and steams can either mean as little as an air filter change or up to an ECU tinker and even a full engine swap. It pays to keep an ...Oil can cause smoke if it gets onto hot surfaces like the exhaust manifold or catalytic converter. To avoid this, clean up any oil spills during oil change immediately. 4. Blown Head Gasket. A blown head gasket is one of the most severe engine problems. It causes your engine to smoke, overheat, and lose oil pressure.Re: 5.0 Mercruiser Smoking A closed choke plate will make you run rich, which would tend to be blacker smoke... Typically the case when warming up a cold engine, until the choke opens. easy to check. With engine cold, give one full pump on throttle to 'set" the choke... should be nearly completely closed.4. You Have a Coolant Leak. White exhaust smoke from a coolant leak is the easiest kind to diagnose because the antifreeze in coolant has a sweet smell that comes out of the tailpipe when coolant is leaking. A great way …The engine smoke is white. Probable reasons: moisture in the engine and exhaust system, malfunction of the cooling system. Insignificant smoking by cold start (especially by cold weather) is considered normal. If the engine continues to smoke even after being warmed up to the operating temperature, it is necessary to take the car to a service ...What could be causing the white/blue smoke 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.A smoking engine is a serious thing. If your Ford Escape’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Escape’s engine would smoke include overheating, burning oil, or a melting wiring …An engine will be able to run that grade, but 10w30 would be better. The first thing you need to do is figure out where the smoke is coming from. I have seen minor gasket leaks that find their way to a hot surface like a muffler and cause smoke. The second possibillity is overfill on oil wil cause oil to seap out.A smoking engine is a serious thing. If your Ford Kuga's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Kuga's engine would smoke include overheating, burning oil, or a melting wiring harness.Jun 19, 2009. #4. Re: I know is a 2 stroke and it should smoke... Check the pulse lines on the fuel pump for liquid fuel. If you find it the fuel pump diaghram may be leaking raw fuel into the crankcase. Look for flooding carbs as well.Jan 29, 2021 · A smoking engine is a serious thing. If your Chrysler 200’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your 200’s engine would smoke include overheating, burning oil, or a melting wiring harness.On runup engine was good, no cas, oil pressure normal. Took off and someone in the runup said to tower I was smoking. I landed immediately but all engine gauges normal and engine running fine, I didn't see any smoke myself. When I shut down engine (right after shut down) CAS said "oil pressure is out of range".A smoking engine is a serious thing. If your Chevy Cruze's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Cruze's engine would smoke include overheating, burning oil, or a melting wiring harness.Overfilling oil in your car is another cause of smoke when you start it in the morning. When your engine has excess oil, it can easily leak into the combustion chamber and mix with the fuel. Since the engine cannot burn this excess oil, it produces smoke that comes out via the exhaust pipe. Excess oil also causes increased pressure in the ...Jan 28, 2021 · A smoking engine is a serious thing. If your Toyota 4Runner’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your 4Runner’s engine would smoke include overheating, burning oil, or a melting wiring harness.Diddles1987. 994 posts · Joined 2019. #9 · Dec 1, 2019. No, the injector seal is just a copper washer that seals the base of the injector, it's just one of those things that fail nothing to do with anti freeze. Leaving it longer will make it worse and harder to remove as it will cause a carbon build up, aka black death.When it comes to your family’s safety, you don’t want to cut corners. Fire protection is one of the best ways you can safeguard your family, and a smoke detector is key to that pro...I have a 03 with a 6.6. Original injectors went out at 65,000 miles. Replaced by dealer. Truck now has 225,000. (Mostly driving to work which is 2 hours away) Now, have the white to gray smoke at idle. Oil level is fine. Anti freeze is fine. Goes away when driving down road. Dealer said injector (s) were bad.Smoking is usually related to engine overheating... If your car is smoking from under the hood, here are the steps you can follow to troubleshoot the issue. #1. Smoking is usually related to ...John Deere Zero Turn riding mower Briggs and Stratton smoking. How to figure out why it is smoking with a quick fix and cylinder leak down test. This one is ... Typically, the smoke is white, black, or4 days ago · Research suggestMay 14, 2024 · Key Takeaways: Engine smoking

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A smoking engine is a serious thing. If your Ford F250's engine .

A Land Rover Discovery can start smoking for several reasons. The location of the smoke typically indicates its cause. Smoke from the engine signals a critical issue that requires prompt action. Exhaust smoke can be a sign of a problem with the fuel regulator, air filter, cylinder head, or engine. The Land Rover Discovery is a reliable SUV that ...Here are some more detailed steps on how to reduce the black smoke from a diesel engine: 1. Change the Air Filter. The first thing you should do if you want to reduce black smoke from your diesel engine is to check the air filter and replace it if it’s dirty. Black smoke is a clear indication that the fuel is only being partially burned in ...Popped hood and noticed a noticeable amount of whitish smoke coming from the front, center, lower engine area. I can't get a look from below because of the air dam. I took a photo and marked where I noticed it. It dissipated after the engine was off--took about a minute to not smell any more. Took about 10 seconds after engine start to get it ...The following are several of the most common causes of white-colored exhaust smoke. 1. Blown Head Gasket. When thick, white smoke is emitted from a vehicle's exhaust, a blown head gasket is often to blame. This critical gasket creates a seal between an engine's block and cylinder heads, while also preventing the loss of coolant, oil, and ...A smoking engine is a serious thing. If your Saab 9-3’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your 9-3’s engine would smoke include overheating, burning oil, or a melting wiring harness.Here are a few reasons why your car might be smoking under the hood: Engine Smoking. If you notice that your engine is smoking excessively, it could be due to an issue with the internal combustion process. Usually, this type of smoke will have a bluish hue and can indicate worn or damaged piston rings, valves or carburetors, or an overfilled ...Dirty Filters. One of the main causes of black smoke from exhaust petrol is a dirty filter. This is because the dirt prevents clean air from reaching the engine, thus affecting the emission control systems. By reducing the airflow, a rich fuel mixture is formed which usually results in damaging the spark plug among other parts.If there's burnt fuel inside the engine, the oil filler cap can release a little bit of smoke but not cause the car to overheat. This could also happen if the piston rings are worn out or the PCV tube is clogged. These parts are used to drain off fuel into the cylinder, where it then burns and creates smoke.2. Smoke, Either Black, White or Blue, Is Coming from the Engine. No matter what color smoke you see, there's bad news. White smoke can indicate a blown head gasket or cracked cylinder head, both serious, potentially car-killing problems. Blue smoke usually means you have worn valves or piston rings leaking oil into the combustion area of the ...Although coolant contains water, the white is from the coolant, as the water evaporates and becomes steam from the tailpipe. White smoke could indicate the head gasket is leaking, the cylinder head is cracked, or the engine block is cracked. Coolant smoke will often present itself before the vehicle overheats and often has a sweet smell.When an oil leak occurs, the oil might penetrate the turbine and cause a fire. This can cause the engine to smoke and may also cause the car to smell like burning oil. Taking action immediately is essential if you notice your car smoking from the back. Pulling over and stopping in a secure area should be your first move.An Outboard Motor smokes because it is burning oil. Two-Stroke Engines burn oil all of the time. Four Stroke Engines burn oil at startup mainly because of oil left in the cylinders or all the time with an oil leak. There are a couple of tricks that can be done to reduce the amount of smoke that an engine burns and here are your best options!Reason # 1: Too Much Oil. Reason # 2: The Carburetor. Reason # 3: The Air Filter. Reason # 4: Piston Rings. If your lawnmower is smoking, it is an obvious indication that something is wrong. We have put together a quick list to help you get your lawn mower up and running at peak performance again. Be mindful, that whenever you are performing ...Jun 15, 2023 · The most common causes of this trouble are: 1. Oil spillage. If the car smoking under hood but not overheating, it could happen due to the presence of oil …Black Smoke. Black or darker smoke is usually nothing to worry about. This happens if your ATV, for some reason, gets too much fuel, and the combustion becomes out of balance. Your engine needs a certain ratio between the amount of air and fuel it gets to function correctly. This is called the air/fuel ratio.By pushing through your trip with a smoking engine, it may result in more extensive damage to your vehicle. It is best to take the car to a service center to find the exact reason. How We Can Help. If your car's engine is smoking, but not overheating, it is recommended that you schedule a service appointment immediately. Our factory-certified ...The wind tunnel is a critical tool in the automotive industry for testing the aerodynamics and performance of vehicles. It allows engineers to simulate real-world conditions and ev...If your car is smoking, pull over. Then quickly run your eyes through the warning lights and gauges to see if the engine is overheating. Which of the warning lights is on? You can also do a quick physical inspection. Chances are that you’ve run over a plastic bag that is burning on the … See moreLow Oil Level. When an engine is low on oil, the The public smoking ban is a relatively recent inventio

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Top Travel Destinations - Steam (which can look like smoke) coming from under the car

01 - Carburetor is Letting Too Much Fuel In. If the lawn mower engine produces black smoke, this indicates that the carburetor is getting too much fuel (or "running rich"). If the carburetor float is stuck open, the engine will get too much fuel. Similarly, if the carburetor choke is stuck closed, the lawn mower engine will not be able to draw ...White smoke from your exhaust means coolant is exposed to your engine's combustion process. In most cases, this is the result of a blown head gasket, but a cracked engine block or cylinder head ...Key Takeaways: Engine smoking after an oil change can be caused by various factors, including overfilling the oil reservoir, using the wrong type of oil, and blown or leaking head gaskets. There are three main types of engine smoke: blue smoke (burning oil), black smoke (running too rich), and gray smoke (burning transmission fluid).Quitting smoking and other nicotine products, including e-cigarettes, before surgery can improve your recovery and outcome after surgery. Quitting smoking and other nicotine produc...Although coolant contains water, the white is from the coolant, as the water evaporates and becomes steam from the tailpipe. White smoke could indicate the head gasket is leaking, the cylinder head is cracked, or the engine block is cracked. Coolant smoke will often present itself before the vehicle overheats and often has a sweet smell.Is your lawn mower smoking? Leaking oil from the exhaust is the usual cause of blue, white or black smoke from a lawn mower. Learn to assess and fix a sputte...Coolant Leakage: Coolant leaking into the combustion chamber can lead to white smoke. This is often accompanied by a sweet, syrupy smell. Engine Control Module Issues: The engine control module (ECM) regulates fuel injection. A malfunctioning ECM can lead to an imbalance in the fuel-to-air ratio, causing white smoke.A smoking engine is a serious thing. If your Jeep Cherokee’s engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Cherokee’s engine would smoke include overheating, burning oil, or a melting wiring harness.Stay calm and pull over to the side of the road. If your A/C is on, turn it off. If you can't pull over and stop the car, turn on the heater, as it will draw in the warm air from the engine and ...Diddles1987. 994 posts · Joined 2019. #9 · Dec 1, 2019. No, the injector seal is just a copper washer that seals the base of the injector, it's just one of those things that fail nothing to do with anti freeze. Leaving it longer will make it worse and harder to remove as it will cause a carbon build up, aka black death.Black Diesel Engine Smoke. Black smoke is caused by excess, unburned or partially combusted fuel, or conversely by inadequate air supply to your engine. In either case the fuel-to-air ratio for your engine has been altered significantly. The trick, of course, is figuring out where the excess fuel or restriction in airflow is coming from.Persistent white smoke indicates a coolant leak in most cases. Blue Smoke from Exhaust – Blue or dark gray smoke is a clear indication that your car is burning oil (and not just gasoline). It might stem from worn pistons, damaged seals, a busted gasket, or a malfunctioning PCV valve. Check your oil level when the engine cools to be sure.A smoking engine is a serious thing. If your Ford F150's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your F150's engine would smoke include overheating, burning oil, or a melting wiring harness.In conclusion, smoke on startup in a 5.3 engine can be attributed to various factors, including worn valve stem seals, faulty piston rings, PCV system issues, and worn valve guides. By diagnosing the underlying cause and implementing appropriate remedies, you can effectively address smoke on startup and restore your engine's performance and ...There are a number of reasons why your car might start smoking but not overheating. Here are some of the most common reasons: 1. A blown head gasket. A blown head gasket is one of the most common reasons for a car to start smoking. The head gasket seals the engine block and cylinder heads. If it blows, it can cause coolant or oil to leak into ...The smoking is an annoyance, but its not particularly harmful. Switching to a synthetic or semi-synthetic oil will drastically reduce the amount of visible smoke, but the oil will still get burned so don't let it get low! And of course you'll want to consider whether its worth spending extray $$ for synthetic just to suppress the smoke.Smoke often leaves car engines as a result of overheating. This can be caused by faulty wire casings, heated residues on the engine block and overheated liquids including oil, transmission fluid and brake fluid. There may also be a fault in your coolant system, or your engine may not have enough lubricant.Reading Time: 6minutes. Summary. Common reasons for a smoking car battery are overcharging, a bad alternator, overheating, a short-circuit, and a dead battery. A smoking battery is a fire hazard and can harm your health. Generally, you must replace a smoking car battery with a new one. A new car battery can cost anywhere between $200 and $500.If dust or dirt clogs an air filter, not enough air will flow through the engine. As less air reaches the engine cylinders, more fuel gets burnt. This is one of the most common causes of poor fuel economy and excessive black smoke emissions coming from the exhaust. 2. Bad Oxygen Sensor.1519 posts · Joined 2008. #2 · Apr 11, 2016. Might want to check for oil getting on the exhaust system from a leaking PCV valve plate. This can also cause an engine compartment fire. There should be an odor as well, if this is the case. Another cause would be from a blown head gasket, allowing coolant to get into the combustion chambers.The most common reason for your snowblower to be smoking is caused by a fuel mixture that is too rich. This could be due to a clogged air filter or improperly adjusted carburetor. Some other common causes for excess smoke are worn piston rings and bad fuel. In this article, we’ll delve into the most common reasons why your trusty snow ...Here are 5 reasons diesel engines knock: Routine combustion. An exhaust or valve leak. Valve damage. Broken bolts. Injector problems (fuel knock) Routine combustion is typical, but any of the other problems listed mean you need to get your car into a mechanic as soon as possible. Below, we will expand on what each of these issues means and how ...After experiencing a fire, one of the most challenging tasks is getting rid of the persistent smoke smell that lingers long after the flames have been extinguished. This unwanted o...3: Blue or Gray Engine Smoke. Smoke with a blue hue indicates burning engine oil. Engine oil can burn when it is far overdue for a routine oil change—or if you have replaced this fluid with the wrong oil type. Oil may also burn if you have a failing part somewhere in your engine, including a broken valve, leaking seal, or faulty piston ring.A smoking engine is a serious thing. If your Ford Ranger's engine has smoke coming from it, it needs to be addressed right away. It can be caused by quite a few different problems, none of which should be ignored. The most common reasons why your Ranger's engine would smoke include overheating, burning oil, or a melting wiring harness.Colors of Lawnmower Smoke & What They Mean. White: burning oil, possibly due to overfilling the oil reservoir. Blue: burning oil, possibly within the engine. Black: poor fuel mixture (too much fuel and not enough air), possibly from a dirty air filter, maladjusted carburetor or poor-quality fuel. “Black is the worst of the smokes,” says ...Save yourself the time and headache of taking your truck in because they will do nothing, I was one of the first to post on here about smoke on startup with my 14 5.3 black and blue every time,it did it this morning,I have 32k on my engine. Dealer says that whey the truck starts it floods the combustion chamber with fuel ya real eco friendly. A smoking engine is a serious thing. If your Mitsubish