Diesel Hard To Start When Cold White Smoke

A Perkins diesel engine hard to start, smokes white/grayish/blue with puffs of white smoke rings, high idle ok? Update: outside temp. Hard or no start complaints can be caused by many conditions. Tips on performance, upgrades, cooling, fuel economy, troubleshooting and more. You have a Bosch fuel injection system, same as the GM/Isuzu Duramax. Ford Power Stroke diesel engines have a history that dates back to 1994. Marine diesel white smoke from exhaust Lets face it, any time we see smoke coming out of our engine we start to see dollar signs flash before our eyes however there are a number of things that could cause your engine to smoke. At the time of the video it was about 50* out and after sitting all night. These conditions are caused by the injector spool valve sticking internally during cold engine operation engine oil temperature less than 70° F (21° C). 9 TDI 130 BHP and it was not starting when it was colder than -10c so I changed the Glow Plugs and this sorted the problem but when I start the car in cold weather 0c or below then I get alot of white/Grey smoke out of the exhaust and a strong smell of Diesel. no power loss and drives fine. The causes of white exhaust smoke can vary; however, it is common to see white exhaust smoke when first starting a car, especially on cooler days. 3 I'm cycling it about 5 times and misses smokes white for a bit then stays running I was thinking of changing out the fuel filter. This morning, was 45 degrees. Diesel drivers everywhere are thankful that diesels have become easier to start in the cold. These issues mainly occur in winter season as cold temperature affects an automobile in various ways. This will often happen when the engine is still cold. To determine if a defective starter is causing no start, perform the following steps: ‪ 1. Small puffs of black smoke on hard acceleration is normal and some white smoke in extremely cold weather too is normal. Hard start cold engine Smart 06 CDI. 9 IDI White Smoke Discussion in '6. The runaway bestsellers was the 4WD dual-cab diesel, while manual gearbox examples are out there but pretty rare. It rattles/knocks and give a little blue smoke with a diesel smell. I have read through most posts, but have a question with regards to white smoke on start up. Ensure the coolant level is at the proper level. The clould is large enough to be seen in the mirrors but only last for a few seconds. it was dark brown/black but no junk, dirt, or gel type stuff was found. please can someone help. Went to boat to day to do some work. Check for the following for white smoke in diesel cars: Worn or Leaking Injectors. Petrol vaporises much faster. Lots and lots of white smoke. firstly thanks to everyone whos helped with this problem on the other posts (back in october. The batteries are less than a year old. Small puffs of black smoke on hard acceleration is normal and some white smoke in extremely cold weather too is normal. Diesel cars emit some amount of visible smoke from the exhaust occasionally and it is not a sign of alarm. Is there Blue/White Smoke at Idle When Cold? Smoke may not be visible on DPF equipped trucks. which is 88 celsius. Conditionally on temperature and altitude, it would be normal if in less than a minute the smoke clears. Is it very light black smoke? Bluish-tinted white smoke? Unfortunately, because ‘gray’ is such a wide color band, it can be a minor variant of any. Ford F-150/F-250: Why Do I Have White Exhaust Smoke? An F-150 or F-250 that's running well should not be pouring white smoke every time you get on the gas. This product is made in Germany, and is designed specifically for diesel engines. Perform a glow plug system and intake air heater check even if there is no complaint of a cold start problem. The tractor below 55F starts with a cloud of blue white smoke JD1025R Cold Start Issue - MyTractorForum. After the 3rd or 4th attempts of 7 seconds of cranking, it will start. I've changed starter and I used some fuel additives and still nothing has changed any other suggestions?please help. The glow plugs heat the cylinder to aid in starting the engine. No white smoke at all when warm. This is usually caused by the leaking injector seal we talked about. The clould is large enough to be seen in the mirrors but only last for a few seconds. ISSUE: Some vehicles equipped with a 6. start Engine hard to start Runs rough at idle Lack of power Diesel knock Black smoke White smoke Blue smoke Low compression X X X Low fuel pressure X X X X X X Low cranking speed - Faulty battery X X Thermostart or Glow plugs faulty X X X Poor or Low fuel supply X X X X X Contaminated fuel X X X X X X Air in fuel X X X X Fuel filter or pipes. Hence, a well-maintained truck that is ready for cold weather is the first step to problem-free winter driving experiences. Feb 08, 2012 · 2002 Ford F350 7. No i have not fixed this. You’ll want to address it quickly though since your car is literally burning your hard-earned money until it’s fixed. If you're ready to replace your glow plugs, visit O'Reilly Auto Parts for a complete line of diesel repair parts. 9L Hard to start when cold. In the morning, if the symptoms are worse, your common rail injectors are failing. Sadly, white smoke from a diesel car operating at its optimum temperature is bad news in most cases. g low compresson, ignition timing, knackered glow plugs, crudded up injectors, air filter. What Causes White Smoke From Exhaust When Cold? In the cold weather, the white smoke can be quite normal, but in some situations, it is not. Air intake heater 2666108, also known as a grid or manifold heaters are used to pre-heat the combustion air to the required temperature to aid cold starting. 3L Power Stroke (1999-2003) :: Hard Start When Cold / White Smoke Feb 25, 2016. White Smoke from Exhaust on Startup. add some diesel fuel treatment to. When it starts it sputters with lots of white smoke like a diesel with air in the fuel. Turned Fuel pin to most conservative orientation, slightly less white smoke, still hard start 4. the blue smoke. The amount of white smoke that comes out at first cold start up I would think is not normal (big thick white cloud) & runs very very rough until everything gets warmed up (approx 5mins. Tightened the terminal screw and it started like a champ. Then hard to start for the next 4 days. White smoke is a sign of water vapor or fuel that has been atomized, but not burned. More issues with Ford TDCI engines, I don't know how I keep getting flummoxed with them. 0L diesel bug engine. The glow plugs heat the cylinder to aid in starting the engine. I've just (well, May this year) had my D22 YD25 engine self-destruct and have had it rebuilt by TRT Engines in Birmingham (some good points and bad with them but generally impressed and would recommend). Ford Power Stroke diesel engines have a history that dates back to 1994. or the cold seasons (and cold nights) make it smoke more white. Recently my D40 has been blowing white smoke on start up only first thing in the morning, particularly when its cold. When I start my car for the first time every day, I have white smoke come out my exhaust usually for about a minute or two but it runs fine after that. This will often happen when the engine is still cold. High idle is fine but idle smokes and runs rough little slowly and gets worst as it idles longer. These conditions are caused by the injector spool valve sticking internally during cold engine operation (engine oil temperature (EOT) less than 70 °F ( 21 °C)). A diesel engine can be hard to start, or not start at all, if you are having a glow plug problem. 2 Ducato which on start up and until its warm the engine misfires and smokes (white) the smoke is un-burnt fuel no power loss once the engine starts to warm up a click can be heard like a relay and then the van runs fine. Diesel fuel was entering his engine! Good thing that diesel fuel is also some sort of lubricant. White smoke upon startup that smells of diesel is generally retarded timing, which co-incidentally makes them a dog to start, but very quiet when running (not naily, a correctly timed diesel tdi sounds a touch 'crisp' or bording on starting to sound crackly. The white smoke is due to unburnt fuel caused by improper heating. when i let go of the pedal. Do you run it on proper white diesel and do you know if the person you bought it off ran it on a mixture because this sometimes causes a lot of white smoke at cold start or when you plant the accelerator and really accelerate it. i have a 2007 Q7 3. Check out the 10 ways you're killing your diesel engine with these easily avoided common mistakes. White, raw smelling exhaust sounds like non combusted fuel due to poor detonation. 3 powerstroke white smoke, exhaust manifold leak fuel, code p 1271, p 1273, Ford 7. Hard Start/No Start Cold – White Smoke The fact there is smoke indicates that there is fuel in the cylinders, so it is likely a cylinder heat, compression, or timing issue. Blue smoke from diesel engines normally means engine wear or damage. In fact, the poor visibility due to the smoke that was in the Worcester Cold Storage Warehouse fire in Worcester, Massachusetts was the reason why the trapped rescue firefighters couldn't evacuate the building in time. One of the concerns for many drivers new to diesel vehicles is cold weather driveability. White smoke from a diesel is usually from unburned fuel. Hard start cold engine Smart 06 CDI. 0L Power Stroke Problems, No Start, Hard Start, Low Power Conditions. Place the red lead of a. Give it a glow and it will fire right up. im sure its fine mine does it on the first start of the day. I blow white smoke (or that's what it looks like in my rear view mirror) when I get on the pedal hard, and a little white smoke comes out when I start - but at idle, or normal acceleration I blow black smoke. Excessive smoke, I am the original owner and it is not just the typical diesel haze. Petrol vaporises much faster. I have a 1985 Mercedes 300SD Turbo Diesel with about 140,000 miles on it. Your tractor should have glow plugs, which look a little like spark plugs, sticking out of the side of the intake manifold. It runs rough and billows out clouds of white smoke. as you say when it warms up, it runs fine with no smoke. start Engine hard to start Runs rough at idle Lack of power Diesel knock Black smoke White smoke Blue smoke Low compression X X X Low fuel pressure X X X X X X Low cranking speed - Faulty battery X X Thermostart or Glow plugs faulty X X X Poor or Low fuel supply X X X X X Contaminated fuel X X X X X X Air in fuel X X X X Fuel filter or pipes. Perform the following to determine if replaced drive hubs and coupling resolved excessive white smoke: ‪ Start and run the engine. White smoke from a diesel is usually from unburned fuel. They do however have inherent problems of being hard to start from cold and when started, smoke. We are the premiere place for 1st gen and 2nd gen Dodges as well as a great source for newer models as well. is 40 to 50 degrees. Manufactured with the highest quality components to provide maximum performance. If you don’t know what you are doing. Doc Sadler is a true pioneer in the diesel industry. Started having less smoke and slightly easier start but still hesitating and not firing up as usual. Page 1 of 3 - White Smoke From Cold Start + Lumpy - My Findings - posted in 2. When temperatures drop, several things happen that can make a diesel hard to start. Archive for the ‘Engine not to Start’ Category Series 60 Defective Starter. White, raw smelling exhaust sounds like non combusted fuel due to poor detonation. While generally well-known in the mechanic community, consumers should be aware that Toyota 1KD engines have a very specific problem. It should reduce or even disappear. When white smoke occurs at cold start, and then disappears as the engine warms up, the most common causes are fouling deposits around piston rings and/or cylinder glazing. I need to find time to hook. Engine crankover but won't start, has fuel pressure all the way to the cylinder heads injectors, the signal for the injectors is not there, and it runs with starting fluid spray into the intake. I was told it was the glow plugs but I don't think so,they wouldn't effect warm starting. A diesel engine can be hard to start, or not start at all, if you are having a glow plug problem. Black smoke is poorly burnt fuel (overfueling) and is often a sign of over-propping or a dirty tune. After a short amount of driving, the white smoke should lessen. Too much excess diesel exhaust fumes and you could find yourself with a failed WOF. Too many variables here. Recently my D40 has been blowing white smoke on start up only first thing in the morning, particularly when its cold. When white smoke occurs at cold start, and then disappears as the engine warms up, the most common causes are fouling deposits around piston rings and/or cylinder glazing. as you say when it warms up, it runs fine with no smoke. And when it does start it has a very large amount of black smoke with a very bad idle,I have done a complete service,also scan for DTC,sfound code 346 (EGR)so I removed EGR and clean it also I remove the EBP sensor and clean sensor and tube,It ran. There are always questions posted about how to cure hard starting, hot or cold. Is the engine starting complaint that the engine is difficult to start. At start-up, the active component in the. These issues mainly occur in winter season as cold temperature affects an automobile in various ways. Ford Mondeo 2009 1. 8TD intercooler (300,000km) which had a cold start problem of running rough or stalling 10-15 seconds after starting. 5% abv so buyer beware. “ Visible smoke is essentially gone, as of the 2007-2010 regulations,” Ciatti said. I did take it to Toyota and they indicated it was a seal in the Turbo and replace the whole Turbo under warranty. First, fuel is not burned efficiently when the engine runs at idle or at low engine speed without load, which are normal start-up conditions. My glowplugs are currently disconnected as the ecu timer shat itself. White smoke is either unburnt diesel or water/coolant. Cold Smoke, another great Montana brew. They do not completely stop spraying fuel when they are OFF. Competition Diesel. Diesel cars emit some amount of visible smoke from the exhaust occasionally and it is not a sign of alarm. (Started before a week) Things tried. 2 in a bug hole and got the cold start timer wet. I felt the same with my big cam 400 cold start. 0L diesel engine STRATEGY IS NOT ACTIVE DURING THESE may experience white smoke, lack of power, TESTS. White smoke upon startup that smells of diesel is generally retarded timing, which co-incidentally makes them a dog to start, but very quiet when running (not naily, a correctly timed diesel tdi sounds a touch 'crisp' or bording on starting to sound crackly. Commercial smoke bombs have small holes through which the smoke and dye are ejected, to create a jet of finely dispersed particles. Getting Diesel Engines Started on a Frosty Morning | Military. Now this isn’t always the case, but after some trouble shooting we’re usually the go-to shop when diesel drivers need refurbished, rebuilt, or new injectors. But if you suspect there's a problem with the way your car is running then white smoke might be a sign that there is in fact something wrong. * Valves out of adjustment (OM615, OM616, OM617 and all earlier diesel engines). So if the intake preheat isn't working the engine should at least sputter and produce white smoke if it is getting fuel. Some engines only use the glow plugs when cold but others will allow the glow plugs to work when the ECU (vehicle's computer) needs them to be on to help with combustion. Contains Real wate. 7L EcoBoost – White/Grey Smoke/Vapor From The Exhaust After Cold Start. Blue smoke is typically oil burning, but bluish-white, or white is unburnt fuel (may be seen while cranking or for a few mins. 1gal/h or 0. white smoke coming out if exhaust when i first start it in the morning. So let's start with the ill-effects of cold weather. How much to get these replaced? Thanks Trent. So the valve needs to be replaced. We recently had a message from Jock who has been getting white smoke and misfire when the engine is ticking over (Perkins 3A. [Andreas Buchmueller] I recommend changing ALL the glowplugs every 60. Fairly clean at idle, but black under hard acceleration (if you can call it that). Note: Chassis fuel system air leaks may also cause continuous heavy blue-white smoke. Contact alleges that improper manufacturing of 6. Posted: Thu Oct 23, 2008 3:29 pm Post subject: Re: ford 861 diesel hard to start I don't know how cold it is where you are trying to start the tractor, but diesels are often hard to start cold. Yes the oil level. One problem though,you have to crank the engine a lot to start it,whether it is cold or warm. Hard starting when. 'The 1KD white smoke on start-up, besides the obvious white smoke is symptoms of rattling / knocking noise in the first two or three seconds after start up. , idling or at speed or under load), and whether the engine is in an on-road vehicle, farm vehicle, locomotive, marine vessel, or stationary generator or other. With regard to another cold starting problem I have been having over the past couple of weeks, it has been that I have to crank over the engine a many number of times before it will start. Mercedes said it has low compression one cylinder. What we consider " a puff of some white smoke" might be what he considers " a cloud of white. Re: 6530 Lost Power, White smoke, Won't Start Sounds like it's not getting fuel or enough when your getting the white smoke and loss of power. Especially, if you park outdoors in a cold night, you may notice the car hard to start in the morning. The compression doesn’t get the fuel hot enough to burn completely when the engine is cold. White Smoke Indicates a Faulty Fuel System: Time for a Fuel Injector Service. Faulty head gaskets. When it's cold the car starts with a thick white smoke and has a slight miss only for a minute or so. It is generally unburnt fuel prior to the engine heating up enough to burn the fuel. "Aside from the typical causes of white smoke, we've seen a number of customers who have been caught out when rebuilding their diesel engine. Government Printing Office Washington, D. Once it's started there's no problems with it whatsoever, it runs smoothly and there's no smoke. The better you know your diesel engine the better mechanical service and repairs we can provide. When you start the engine, the wispy white 'smoke' isn't smoke at all, but the vapor going into the air due to the heat. It runs rough and billows out clouds of white smoke. Peugeot 407 diesel 2. Dilution of the oil with fuel. White smoke always means unburned fuel. it was dark brown/black but no junk, dirt, or gel type stuff was found. This start-up. My scenario is this. Learn about the most common problems in diesel engines, including failure to start in heat or cold and black or white smoke --- and diagnosing the culprit!. If its really cold say 3c then it starts fine no grey white smoke the revs increase just a bit but if its been cold and frosty but ive not used the car in the morning ive waited till the day to start it so it maybe be 7c then i get the rough start where the revs dont increase and then i get the white grey smoke. His cutting-edge engineering and manufacturing of diesel injection systems has led to EIGHT world land speed records in diesel equipped trucks. will produce some. I use 5-20 oil. Has the engine got a fuel pre-heat system for starting in cold weather? If the pre-heat ceases to function it can be like electing a pope for several minutes until the engine warms up. White smoke emission, a characteristic of diesel engines during cold starting, needs to be controlled in order to meet these regulations. Hard or no start complaints can be caused by many conditions. Diesel fuel was entering his engine! Good thing that diesel fuel is also some sort of lubricant. 9td puffs out the white smoke on start up not so much recently as the temps being warmer seem to be kinder to it. Here's why you need glow plugs, and how to replace them if yours fail. on cold start it bellows out white smoke, runs rough, then stalls. 2004 Chevrolet Silverado 2500 HD 6. Ran great at first, but am noticing white smoke at startup and continuing intermittently for several miles. Its pure white diesel smoke which stinks and burns your eyes and its a fair bit for the first couple of minutes till it warms up, the engine seems a tiny bit lumpy also for a couple of seconds. Tight valves will make a diesel engine start hard blow lots of white smoke, skip and take forever to warm up. It should reduce or even disappear. Details: White smoke can be caused by a couple of different things. 2 TDI, bought in April'11 and has done 6800 kms so far. In the past if I would crank it for 10-15 seconds it would start on the second or third try but now it won´t start at all if the temp drops below 60 (I use the cold start procedure recommended by Volvo). hi just to say,the smoke you are getting on cold start is it blue or white in colour? if its blue then its oil. Sometimes when it is cold, the truck sputters and blows white smoke, and it takes a few minutes to clear out. Mine was putting a little. I recently bought a 2005 BMW 320d sport auto with average milage, trouble is, white smoke coming from the exhaust. * Seriously contaminated or extreme (critically) low cetane diesel can cause white smoke. Do you wait unti. Hi Perkins Guys, My name is Art, I recently rebuilt a 1983 T6. The better you know your diesel engine the better mechanical service and repairs we can provide. If there's no smoke, the FICM is the problem. Car in garage when not in use. These diesel numbers are a great full-time bodied smoke, who wants to waste time on a wimpy, skinny flavored waif of a cigar. It happens every day. If you start it cold with the air cleaner off, and hold the choke open you should not get black smoke. Mechanical injectors can be reconditioned pretty easily, and for far less money than. Three days ago, to try to narrow down the problem, the fuel filter was changed. Continuous smoke-filled white clouds while driving could also be a sign that fouling deposits are developing around the piston rings. white smoke coming out if exhaust when i first start it in the morning. Do you have a strong, clear flow of exhaust water? Do you see smoke coming out of the exhaust tube? Other than an initial puff or two, your engine should send out clean exhaust without any smoke. Check the following:. If you do not get any. but still would like to know what you guys think. Smokes lime crazy when it cold but after 10 mins or so its fine. Engine Will Not Crank or Cranks Slowly; Engine Hard to Start or Will Not Start (Exhaust Smoke Present) Engine Cranks But Will Not Start (No Smoke From Exhaust) Engine Starts But Will Not Keep Running; Engine Will Not Shut Off; Rough Idle, Warm Engine; Engine Surges at Idle. Disclaimer: This work should only be carried out by a Professional mechanic only. , everything ok 3. White smoke occurs in a diesel engine when the diesel fuel goes through the engine and reaches the exhaust without having been burned. The following points will help in diagnosing hard start concerns. The first in this series was the 7. I now drive 70% highway and 30% city. The pre heat light kept going on and off on my way home. The engine had recently been rebuilt with a crank re-grind, head skim and piston/liner replacement. When temperatures drop, several things happen that can make a diesel hard to start. Engine has low compression (starts hard cold) Engine is out of time; Fuel quality is poor (possibly mixed with gasoline) Leaking coolant into the combustion chamber; Injection pump is ma. You should have the leak fixed also, but hopefully it's unrelated to the smoke. These conditions are caused by the injector spool valve sticking internally during cold engine operation engine oil temperature less than 70° F (21° C). When the warm or hot exhaust gases meet cold outside air, condensation and steam is a result. Took timing cover off, double checked timing. Lots and lots of white smoke. no problems when running. When the engine is running the smoke appears, then fades, then shortly comes back. At that time when I lift my foot up, the engine tries to stall and shut off and it gives lots of white smoke and smell of gas. Can sneak up on you if you. I have to press accelerator for minutes to warm it up. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict. Recently started having hard starts and large amounts of white/blue smoke when starting. 8TD intercooler (300,000km) which had a cold start problem of running rough or stalling 10-15 seconds after starting. 5L Turbo Diesel. On some diesel engines, the PCM will operate the glow plugs for a period of time after the engine is running to reduce white smoke and engine noises. In rarer circumstances, your car battery could be the reason why your engine is hard to start. The previous owner, who is a mechanic, told me that it is common for an older diesel to puff a little white smoke on a cold start, and the colder it is, the more smoke you get. I've just (well, May this year) had my D22 YD25 engine self-destruct and have had it rebuilt by TRT Engines in Birmingham (some good points and bad with them but generally impressed and would recommend). only drive 750 miles avg per month for the 10 yrs owned. 5 sputters on hard acceleration, and sometimes is hard starting overnight. No! Full-time bodied and robust leave a more lasting impression. Almost no smoke and ran great. If this happens, you will notice white smoke from the engine bay. 1995 mercedes benz c220d diesel automatic hard to start with white smoke I have been told it could be the heat plugs, if so what would it entail or what else could it be/common fault. If allowed to idle after a cold start, a very slight amount of white smoke can be detected for several minutes. white smoke is unburned fuel --> a bad sign. Excessive white smoke could be an indication of inoperative glow plugs, loose injectors, low compression from worn rings or bent connecting rods, or coolant leak into the cylinders. Moved to golf cart community and for last year averaged 175. The white smoke is due to unburnt fuel caused by improper heating. This is nothing but steam caused due to condensation. White smoke on start is weak exhaust valve. Any suggestions on the cause of the problem? Lynn. When the engine has warmed up, the problem goes away entirely. Lots of white smoke/very rough at cold start If this is your first visit, be sure to check out the FAQ by clicking the link above. My question is where should I start looking for the leak? I believe it would be between the pump and injectors. Buddy of mine told me to try this yesterday. My MK3 VR6 hadnt been started for several days. Moved to golf cart community and for last year averaged 175. Detroit Diesel Troubleshooting Diagrams. 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. White Smoke Upon Starting From Cold White smoke on start up on cold morning with diesels is not uncommon. Engine coolant temperature sensor. At start-up, the active component in the. Then hard to start for the next 4 days. Hard start is one, you've got that. This is a common occurrence, especially in colder climates. Unburnt diesel looks like white smoke, it is actually atomised diesel rather than smoke, but looks like it. White smoke is either unburnt diesel or water/coolant. If you get a little smoke on start-up and it goes away after a minute or two, don't worry about it. Yes, I know blue = oil, white = fuel, black = too much fuel, blah, blah. Low or no fuel supply pressure, restricted fuel filter(s). Is rated as 6. 75 and 2 RPM's while in Park, and the car continued. Q has the type of fuel we now are required to use be part of my problem? truck was designed to run on #2 fuel not this ultra low sulfur fuel. Causes of Diesel Engine Smoke - By Color. 1) Low fuel supply pressure or air getting in the fuel For basic fuel supply system diagnostics; please reference TSB 14-07-96. Is it very light black smoke? Bluish-tinted white smoke? Unfortunately, because ‘gray’ is such a wide color band, it can be a minor variant of any. The key of longevity for any engine is regular maintenance. It is a little hard to start (likely due to glow plugs and slow cranking) and it smokes a lot when cold (white/grey) and continues to do so pretty much all the time. It will not have any smell other than normal. Diesel engine exhaust colours commonly seen are black, grey, translucent purple/blue and white or white/blue, these are commonly recognized as resulting from the following engine complaints. That is the stone cold truth. Problems in this area will cause diesel engine starting problems, uneven running and white smoke when the engine is cold. I got isuzu npr300 its hard to start on cold days and once started it idles rough and blows blue white smoke and clears up in 500m and once get warm then no problem all daytry to cut off sounds like a sticking choke problem. The only time it seems to get better is when you actually run the machine a. Question by kk: when do diesel generators start producing black/white smokes? ?. On cold start first thing in the morning 98% of the time it won't start with out using cold start sprayed into the Air Box. The only time it seems to get better is when you actually run the machine a. The problems with the GMC started within days of buying it. the white and blue smoke you see after it finally started is unburned diesel fuel that built up in the. Posted by karen_cam674 on Feb 10, 2011. Hard starting when. 5 Turbo - Heavy white smoke After a new pump with new PMD with #6 resistor and new computer with a new PROM on my '95, we barely got the truck started. Once it starts, it billows white smoke out of the exhaust, sometimes in massive quantites making part of the street disappear. One particular customer came to us after having the 1HZ engine in his 80 Series ’Cruiser. I think a simple test light will work by hooking one end to the positive terminal to the battery and then touching each glow plug. 9TDI and it starts fine when hot but not so well when cold and there is a puff of white smoke when started from cold as well. I had a Volkswagon Rabbit diesel that was hard to start when cool. Insufficient fuel supply. White Smoke Indicates a Faulty Fuel System: Time for a Fuel Injector Service. Getting Diesel Engines Started on a Frosty Morning | Military.