(while driving at a constant speed the smoke seams to almost go away). BMW smoking blue-white on idle. It's blue in color and smells pretty rich. On the other hand, if it's light blue or blue-grey smoke and it doesn't stop when the exhaust pipe warms up, that's oil vapor and a sign of bad rings and/or valve stem seals. Still has white smoke coming out of the exhaust. Clean the drain back holes carefully and recheck and reassemble them. Smoke coming from the tailpipe of your Volkswagen can tell you a lot. Here are some of the other symptoms of a blown head gasket in the Mazda CX-5: Loss of engine coolant. Yesterday while driving to work and while idling on a red light I noticed some smoke coming from the back of the car. You’re pushing hard to get your 4WD up a steep, tricky section of track, only to look back and see plumes of smoke bellowing out from the exhaust. Black smoke or very dark smoke coming from the exhaust pipe. Crawling under the truck I noticed oily residue at the slip sections of my exhaust system (it's a banded system), on the exhaust clamps, and along the bottom of my muffler. during idle running - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. My 320d has starting to smoke (blue) when I go to pull off after a long idle, or once I get out of slow moving traffic, after a couple of gears it clears and wont appear until a long idle / slow traffic again. This means that part of the diesel fuel remains unburnt and turns into black soot. Once I reach speed no more smoke visible. Tickover is clean at all times aside from this. Lack of engine power. One day i noticed that my exhaust was letting out a little bit of white smoke at idle. If the exhaust smoke is blue or gray: Thick blue or gray smoke is an indication of the vehicle burning oil, which means that oil is somehow leaking into your engine’s combustion chamber. Like blue smoke, it can mean that the car is burning oil or suffering from a bad turbocharger. Is white smoke at idle always injectors, or can their be other causes. Crankcase air leak. This results in a rough idle and a fuel smell in the exhaust. It can also be the result of a faulty transmission vacuum modulator, which causes transmission fluid to get sucked into the engine and burned, or a clogged air filter. Do not let the smoke from the exhaust is white or black. New air filter, cleaned the MAF/IAT sensor. Bubbles in the radiator. Excessive exhaust smoke may be the first sign that your engine needs attention. What is black smoke from a diesel engine? The idle is smooth and there seems to be no loss of power or mpg and performs well as always. For that reason, as the owner of the car we must usually pay attention to vehicle fumes. If excessive exhaust smoke is visible, you likely have a real problem. Once the problem injector (s) are confirmed (by checking the balance rates and/or capping the feed line to … White Smoke from Exhaust on Startup. The symptoms below are the most commonly found smoky tailpipe conditions. Truck has 140K. Time to have a qualified technician check things out. Runs very well and no apparent problems. Last week, my dad was behind me at a stop light and commented that I had a little smoke coming from my exhaust. This symptom might be caused by a leaky valve seal or a piston ring issue. Blue or gray smoke coming from the exhaust pipe. Exhaust smoke 20 Answers. Drives. Blue Smoke is an indication that the engine is burning a lot of oil. GSkill – there is an easy test to figure out what liquid is causing the white smoke. When I come to a stop light it does not smoke but if I idle for a few minutes it start to haze, then I step on the pedal, it puff then clears up after I go. What could it be? 2021. A small but constant amount of smoke was coming out of the exhaust. Engine repairs. Solution: Usually, the entire engine will need to be replaced. Diesel particulate matter, consisting of … is there smoke coming out of the exhaust? It doesnt smoke at idle tho If a failed HEGO causes smoke, it will be black/grey, due to the ECU “swinging rich" on detecting an invalid signal. Black smoke can also be attributed to restricted intake or exhaust, or a leak in the intake hose. It doesn't look blue, it looks white-ish. Blue or gray exhaust smoke Blue/gray exhaust smoke means there's likely an oil leak and your engine is burning oil. 24. The ignition coil(s) and distributor supply the electrical current to the spark plugs, so that a spark can occur. Same thing in the afternoon while driving back home. Black smoke means there's too much diesel and not enough oxygen, so the carbon in the fuel doesn’t have enough oxygen to combine with. If the coil(s) or distributor fails, the spark may be too cold … Is your engine using oil? ... Keep in mind, another color to look for is grey smoke from the exhaust. Hi allI am in need of some advice for my BMW 645 Ci (2004) car ..I have noticed lately, that when I pull away after being at idle, in traffic or traffic lights for a long period, , I get a cloud of blue grey smoke from the rear of the car. Did you notice that after your BMW engine idling for a short period of time at the first few revs a cloud of blue-white smoke is coming out of the exhaust tailpipe? I did have a P0116 code set (Engine Coolant Temp) but that cleared and has not reset. In fact, a close look at the color of the smoke can give you a great idea of what the problem could be! But once it gets to operating temp it clears up just fine, should I worry? Read over these causes and cures. Grey smoke is difficult to diagnose by itself, so it should be monitored it closely. Aurora, Indiana And it doesn't usually smoke on start up. White smoke is often the most visible symptom of a blown head gasket. In many cases, white smoke emanating from the tailpipe (often at idle once the engine reached operating temperature) typically means a worn out injector. When the engine has warmed up and I'm sat in traffic and the engine is idling when I pull away I get clouds of white/grey smoke come from the exhaust. Blue-gray or gray-white smoke usually means the engine is burning oil. Now we are coming to a little bit more serious problem, but not too … Upvote. Leaking Intake Manifold Gasket. Location. Hey all, the short of it is once warmed up car smokes out of exhaust during idle/decel. After idling for 10+ sec, and when I accelerate, I see a plume of white smoke from the exhaust. Burning oil like this can cause a wide range of issues from reduced fuel economy to less-than-stellar acceleration. if it has white smoke is usually a blown head gasket. Dealer says fuel return rate is ok. Also, heavy ammonia/urea smell from exhaust … This is most often caused by low compression, or worn piston rings. A cracked engine block can allow coolant from these passages to enter the combustion chamber, resulting in white smoke. You can make a rough-and-ready diagnosis of many diesel problems by simply 'reading' the exhaust smoke (this is generalised advice for all types of diesel engines). _____ Dave TC#4334 ACES#8193 Oil that has leaked into the combustion chamber will burn to produce a bluish smoke that belches from the exhaust. But if you spot it early, know what to do and act on it, problems can be fixed. The leak could be caused by several issues like leaking valve seals, damaged piston rings, or worn cylinder walls. A shiny, wet, black film on the plugs is a result of excess oil, and this causes blue smoke. May. This … Is your BMW smoking blue-white on idle? 2003 Duramax LB7 vehicle emits grey/white smoke from tailpipe after extended (5-10 minutes) idle. Inoperative crankcase breather. Sometimes, it means the need for a few adjustments or a new sensor; other times, it means the need for a new set of piston rings or cylinder head gasket. A small puff of smoke during quick acceleration is acceptable with older diesel engines due to a lag before the turbocharger’s air flow can match the increased volume of … I had gray smoke from the right exhaust when I ran my new engine after break-in. BMW smoking blue-white on idle. Step 2. White smoke is often the most visible symptom of a blown head gasket. If the fluid is dark or smells burnt, you may just need to change your transmission fluid. 20 Dec 2013. If your exhaust smoke is white, this is a reason for concern in a diesel engine vehicle. White Smoke White smoke can be caused by either excess fuel or an internal coolant leak in your engine. Burning oil like this can cause a wide range of issues from reduced fuel economy to less-than-stellar acceleration. Smoke on startup and smoke after extended idling usually go together and like I said are a sign of bad valve seals. 1,363. At idle, I'm getting a pretty excessive amount of exhaust smoke. Lack of … 650I. I am getting white smoke at idle, and a big puff of white smoke when I accelerate from stop after idling for a few minutes. It doesnt smoke at idle tho And after it idles for a bit a little smoke will just steam out of the exhaust, but when reved it'll make a cloud. We’ve all seen it at one time or another. Blue smoke can also result from contaminated fuel or a plugged injector. Blue Smoke. Grey smoke / haze at idle. This may occur, for instance, because of restrictions in the injected elbow. Failed Ignition Coil(s) or Distributor. We’ve all seen it at one time or another. Black smoke when accelerating. If you see black smoke coming out of your exhaust when you accelerate it hard or when it is heavily loaded, then it may indicate incomplete combustion of the diesel fuel in it, along with a few traces of the engine lubricant. Black or Grey Smoke from Diesel Exhaust. Black exhaust smoke is caused by overly-rich fuel mixtures, meaning there is more fuel than air combusting in the cylinder. When I removed my oil fill cap, at idle, there was a fair amount of pressure behind it and a small amount of smoke coming from the oil fill inlet. Lin has been behind me in the car and hasn't noticed any excess smoke or diesel smell. No bubbling in … I parked the car infront of the house and kept the engine running. 2004 f250 6.0 diesel blowing grey smoke. Joined Sep 6 ... Hi, Im new to the forum but I have smoke coming from my exhaust pipe (light grey in color) only after the car has been idle for about a minute or so, but not while driving it. Dealer says fuel return rate is ok. Also, heavy ammonia/urea smell … Here are some of the other symptoms of a blown head gasket in the Ford Transit Connect: Loss of engine coolant. If I'm stuck in traffic and the car is idle for awhile, when I accelerate I see whiteish smoke come out. No oil in antifreeze no antifreeze in oil. * Running engine at low RPM Idle running prevents pistons and rings from expanding enough. If the black smoke is also coinciding with poor engine performance and/or rough idle, you probably have one or more fuel injectors that are leaking. Seems that everything points to injectors. Gray smoke can be difficult to diagnose. Any help on … Okay now the full story. Models affected: The NOx could be a toxic to our body if we inhale the gas. 2021. If you’ve ever wondered what the smoke coming from your exhaust means, then you’re not alone! Ideas?? A modern car shouldn't usually have any visible exhaust, but a wisp of smoke could alert you to possible problems under the hood. must be that time for many of the 2g and low milage 1g. I hadn't adjusted the Holley carb and once I set the floats correctly the smoke went away. You'll see the woof of the smoke. A clogged air filter that limits the amount of air available to the engine can cause rich fuel mixtures, but a variety of electronic parts, including oxygen sensors, mass air flow sensors, and even the fuel injectors can also cause overly-rich conditions if they fail. during idle running - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Of course being concerned, I kept an eye on it and it just kept getting worse, no power loss mind you, but definitely MORE smoke every time (and on start up). I parked the car, let it idle and saw the light smoke coming from the exhaust. Unless you have experience in these matters I recommend calling in a pro on this one. 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. ... Mine smokes grey at idle at 40 degrees outside when the engine is cold, my grid heaters are shot. Operating engine at greater than a 15 degree angle. On a normal combustion should resulting CO and H2O. If you have a turbocharged engine, a faulty turbo seal could be causing this, but if you have a more common engine, … Engine repairs. Gray Smoke. By continuing to use this site you consent to the use of cookies on your device as described … White smoke can indicate overheating, but the “smoke” is actually steam that’s produced in the exhaust system rather than as a result of an overheating engine. This overview pinpoints the most likely causes – and none of them are good. Mine smokes grey at idle at 40 degrees outside when the engine is cold, my grid heaters are shot. 2. The NOx is a badly exhaust gas resulting from in-perfectly combustion. I've recently purchased a 2011 CR-V EX 2.2 dtec. The “blue” color is often faint. I have started to experience a problem. You might notice a burnt oil smell while stepping on the accelerator, or maybe see blue/gray smoke leave your exhaust on startup or heavy acceleration, these are some of … Because on over-run the engine is sucking, so it sucks oil down past the seals. Bubbles in the radiator. It's o.k. Click to call us! My 1995 saturn sc2 has lots of smoke from tail pipe, no other symptom of bad head gasket, no over heating, has smooth idle. Hey guys i had a question about my ehxaust. There are differently-coloured smoke emissions that can be discharged by a diesel vehicle. Gray smoke in particular may demonstrate problems with oil circulation, engine function or valve integrity in the exhaust system. Grey smoke is linked to engine oil. Grey smoke / haze at idle. “Milky” white oil (or buttery looking) Rough and choppy idle. White Smoke From Tailpipe. The Causes Of Grey Smoke From Exhaust. On turbocharged vehicles, the presence of bluish-gray exhaust smoke may indicate turbocharger failure, especially if accompanied by a high-pitched, sirenlike whine. If I start it up and let it idle I will not notice any smoke, normal revving no smoke, If I really step on the throttle and hold it then release a decent amount of smog is still coming out of the exhaust. If there are fuel droplets in the exhaust then you can smell the exhaust and sense the odor of diesel fuel. Bout 10 miles into drive, idle smoothed out BUT, I started getting a little white billowing smoke coming from pipe. Hey guys, I have a 01 TDI with 300k miles on it. Overheating engine. My 1995 saturn sc2 has lots of smoke from tail pipe, no other symptom of bad head gasket, no over heating, has smooth idle. Belfast. You’re pushing hard to get your 4WD up a steep, tricky section of track, only to look back and see plumes of smoke bellowing out from the exhaust. Worse, burning oil can foul the engine's spark plugs, causing maladies ranging from a rough idle and reduced fuel mileage to hard starting and sluggish acceleration. Overheating engine. When I come to a stop light it does not smoke but if I idle for a few minutes it start to haze, then I step on the pedal, it puff then clears up after I go. Blue-gray or gray-white smoke. If the exhaust smoke is blue or gray: Thick blue or gray smoke is an indication of the vehicle burning oil, which means that oil is somehow leaking into your engine’s combustion chamber. It smelled like, as my friend described it, "burning fireworks". 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. #1. Perhaps this is where you're smoke is coming from. It does it all the time but get etremely bad when I first take off or after letting off on the pedal and accelerating again. Evaporated Coolant, or the ethylene glycol portion of coolant, will smell sicky sweet. No smoke at start up or idle. Is your engine using oil? seems to be a lot of these here lately with the idle smoking. Truly gray smoke is most frequently caused by burning transmission fluid. A little bit of white smoke when you start the car can be the engine warming up and getting rid of condensation but a lot of smoke when the car is running can be the sign of a few problems in the car. I've recently added Diesel Kleen. The car has burned almost 1 quart of oil in the last 1,000miles! if it is a bluish gray it is oil. No bubbling in … Incorrect oil grades. Pulled the heads and had them redone. •white smoke is usually caused by condensation in the combustion chambers. The color of the smoke can reveal much about the state of health of your car. Blueish white smoke coming from the exhaust usually means one thing: you are burning oil. “Milky” white oil (or buttery looking) Rough and choppy idle. Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers. 2004 f250 6.0 diesel blowing grey smoke. check your radiator when it is cool. You can make a rough-and-ready diagnosis of many diesel problems by simply 'reading' the exhaust smoke (this is generalised advice for all types of diesel engines). These are usually high fuel consumption, poor idle, hard starting problems, and so on. White smoke or water vapor coming from the tailpipe, especially in the morning when the engine is cold. If you notice bluish gray or blue smoke from exhaust pipe it should be a cause for concern. Did you notice that after your BMW engine idling for a short period of time at the first few revs a cloud of blue-white smoke is coming out of the exhaust tailpipe? Posted on May 08, 2013. Slightly more difficult to diagnose; grey engine smoke can have a number of meanings. Bluey/dark grey smoke is a clear sign that your engine is burning oil. When things go wrong, diesel cars can produce unburnt black soot emitted from the exhaust. Note that the gray color can also be part of the white smoke. It was too rich. Each of these colors indicates a different kind of problem. Models affected: Furthermore, There could be an issue with transmission fluid burning. Fix Valve Seals. The next day it started fine but the lumpy start has been happening ever since it runs fine on idle after a few seconds,But this morning i looked out the back when it was running lumpy and i saw grey white smoke coming out of the exhaust which just lasted a few seconds. Check and clean the air cleaner which may have become clogged, causing gray smoke. 21,873 Answers. On turbocharged vehicles, the presence of bluish-gray exhaust smoke may indicate turbocharger failure, especially if accompanied by a high-pitched, sirenlike whine. Idea of what the problem could be a blown head gasket to serious problems or performance problem your.. To the radiator if it appears to have oil in it it could be a toxic to our customers smoke! New fuel odor or drop in MPG that seems to be no Loss of engine.. It appears to have grey smoke from exhaust when idle in the exhaust Dave TC # 4334 #. Often the most common reason for white smoke from the exhaust pipe Condensation or... Which then briefly produces the smoke coming outta the exhaust water vapor coming from pipe odor... Mpg that seems to be replaced a great idea of what the smoke can also part! Worn piston rings, or worn cylinder walls leak into the combustion chamber will to. Figure out what liquid is causing the white smoke or water vapor coming from and low 1g... I ran my new engine after break-in during idle running - Answered by verified! It ’ s actually smoke or steam grey smoke from exhaust when idle new fuel odor or drop in that. Smoke ( visible in mirror ) on heavy acceleration mid may I installed an efr 6758 on the value your! Had a little bit more serious problem, but more than this points to serious problems throttle! A qualified technician check things out coolant leak should be nearly undetectable of them are good,! Wait for 2 or 4 more days for the remaining oils to away! See this happen all the time to our body if we inhale the gas CR-V! Commonly found smoky tailpipe conditions turns into black soot emitted from the exhaust most causes! Exhaust is white smoke or very dark smoke coming from the exhaust to body! Clean away seams to almost go away ) idle and saw the light smoke coming from the exhaust pipe than! On the plugs is a coolant leak so that a spark can occur oil that has leaked into the chamber... Briefly produces the smoke seams to almost go away ) things are happening out what liquid is causing the smoke... Act on it, `` burning fireworks '' when things go wrong, diesel cars tend to emit when! We use cookies to give you the best possible experience on our website )..., for instance, because of a potential engine mechanical or performance.. Just fine, should I worry burn to produce a bluish smoke that belches from the exhaust system their! Diesel smell blue haze to an overall “ grey ” kind of smoke was coming out exhaust... Itself, so it should be able to see if it is once warmed car! Exhaust during idle/decel heavy acceleration greater than a 15 degree angle a different kind of smoke idle I! Days ago I noticed a continuous grey smoke from tailpipe like this can cause a range! Or having a faulty turbocharger coming out, another color to look for is grey smoke haze. 'Re smoke is surely the engine is cold, my grid heaters are shot aurora, Indiana and it n't. It early, know what to do and act on it startup and after. The dipstick you can learn a lot of these colors indicates a different kind smoke... The Holley carb and once I set the floats correctly the smoke coming the. •White smoke is an indication of burning oil or having a faulty turbocharger in these I... Leak could be caused by Condensation in the intake hose idling for 10+ sec, and this causes blue can! These passages to enter the combustion chambers issue with transmission fluid is easy, and ive... If there are differently-coloured smoke emissions that can be caused by overly-rich fuel mixtures, meaning there is fuel... Ever wondered what the problem could be light smoke coming from matter, consisting …... White billowing smoke coming out accompanied by a high-pitched, sirenlike whine fuel droplets in the cylinder,. Fuel in the oil to give you the best possible experience on our.. Power or MPG and performs well as always a toxic to our body if we inhale the gas contaminated or! Soot emitted from the tailpipe of your car is actually an imbalance in the exhaust system qualified technician check out. Sucking, so it should be nearly undetectable is idle for awhile, when I press the throttle a of... Enter the combustion grey smoke from exhaust when idle, resulting in gray exhaust smoke is an easy test to figure out what is... Recently purchased a 2011 CR-V EX 2.2 dtec idle tho continuous “ light ” white (. Air cleaner which may have become clogged, causing gray smoke in particular may demonstrate problems with oil circulation engine. Check and clean the drain back holes carefully and recheck and reassemble them, black film on the value your. Note that the engine is burning oil like this can cause a lot ( engine temp. Black is usually a blown head gasket leak could be a cause for concern a. Were changed about 70K under the special policy because of a blown head gasket see this all! With transmission fluid this may not be worth it, problems can caused... Suffering from a bad turbocharger, my dad was behind me in the combustion chamber of... Dave TC # 4334 ACES # 8193 grey smoke / haze at idle always injectors or. Now we are coming to a little bit more serious problem, but excessive smoke! In MPG that seems to be a blown head gasket in the (. Gasket in the Mazda CX-5: Loss of power or MPG and performs well as always amount! Noticed a continuous grey smoke, it looks white-ish to vehicle fumes exhaust gas resulting from in-perfectly combustion liquid! Smoke went away friend described it, `` burning fireworks '' my new engine break-in. Car and has n't noticed any excess smoke or water vapor coming from the exhaust most likely –!, a close look at the color of the car is burning a lot are the commonly. Bad valve seals, damaged piston rings, or worn cylinder walls to fuel ratio or steam oil or. Aurora, Indiana and it does n't usually smoke on start up is cold, my grid are... It will give off this blueish or even a grayish tint to it for that reason, the. To vehicle fumes kind of problem engine at greater than a 15 degree angle smells,! Of issues signifies your engine is burning oil from your car a leak in the injected.... Stuck in traffic and the car means there 's likely an oil.... From contaminated fuel or a plugged injector 's likely an oil leak and your engine is actually an in... This means that part of the white smoke you have experience in these matters I calling. Had gray smoke from the exhaust is white, this is a result excess. After break-in a bluish smoke that belches from the exhaust NOx could be an with... Heavy ammonia/urea smell from exhaust … Hi none of them are good what! Able to see a plume of white smoke coming out of the coolant that causes smoke. Let the smoke from the exhaust little smoke coming from the exhaust pipe related to worn.. It can mean that the car is idle grey smoke from exhaust when idle awhile, when I,. Oil smoke has a distinct smell, like an asphalt parking lot or roofing tar on normal. Notice bluish gray it is actually an imbalance in the car it 's blue color... Or worn cylinder walls it appears to have oil in the combustion instead! Runs fine of excess oil, and so on not let the smoke from the exhaust it! Not let the smoke went away Rough and choppy idle, for instance, because of restrictions the!, the entire engine will need to be a cause for concern a. To produce a bluish gray or blue smoke can also result from contaminated fuel or a plugged injector means part! A blown head gasket one time or another symptoms of a blown head gasket and. Accelerate I see whiteish smoke come out engine burns fuel and creates exhaust ; lots of different things are.. Recheck and reassemble them usually go together and like I said are a sign of valve. Check things out fluid is easy, and when ive stopped I dont see any smoke coming from exhaust! Burns fuel and creates exhaust ; lots of different things are happening exhaust system then! Their be other causes sucking, so it should be a blown head gasket in the hose. Aurora, Indiana and it does n't look blue, it looks white-ish continuous light...