Causes Of Hard Starting Diesel Engine

) Fuel pressure gauge; Assistant/helper. The starter voltage drop should be less than. Should be at least 55 PSI. Remember that as pressure increases, heat does as well. In most cases, replacement starters for these older motors are gear-reduction motors. Ignition coil 4 circuit poor electrical connection. On earlier occasion, I did a load test on the battery and it seemed OK. 4 Powerstroke diesel popping engine noise. ) Fuel pressure gauge; Assistant/helper. Hard start Look for a stuck check valve on the fuel line. Make sure you have some good fresh fuel in the tank too. Please dont take it to a dealership there is NO good reason to do that. If the engine will not start, proceed to "Low Pressure Fuel System". Left Coast Diesel. Snyder is back with more tips & tricks to help keep a Ford 6. Allow between 5-10 seconds for the engine oil to reach the turbocharger. Disconnect the Engine Oil Temp (EOT) sensor at the rear of the oil reservoir. im trying to narrow down my problems with the engine. On most Briggs engines you can't back the coil up far enough to keep it from firing, but the spark may be late enough to cause hard starting and make it run a little weak. Having both proper fuel pressure and volume are equally important for ease of starting. 2 d4d engines fitted to avensis, rav4 ,corolla verso ,auris (hard starting ,stall on start up ,rough idle on start up when ambient temp is lower than 10 degrees. I've taken the time to summarize the information provided in the workshop manual. Unlike gasoline engines, which use a spark to ignite the fuel mixture, diesel engines rely solely on cylinder pressures to ignite the diesel fuel mixture. Get a circuit tester and connect the clip to negative earth -. If you have used Stiction Eliminator, Diesel Extreme, and Diesel Winter Anti-Gel as recommended above, and you are still having trouble with cold starts, it's likely that the glow plugs are not operating correctly. This is what stops the engine. It will start right up at 50 degrees with no heater as a test although I always hit the heater to make it easier. Fuel leak Ford 6. The fuel can vaporise due to being heated by the engine, by the local climate or due to a lower boiling point at high altitude. Rough Idle. 0L Ford Super Duty, and 2004-2009 6. re: kia sportage hard start problem 11/29/2009 4:28 PM i also have 1996 sportage. 1This illustration shows the low-pressure and high-pressure oil systems for the 6. But the main piece of kit was stop-start which you would activate by pressing a button on the dash and then pressing it again to turn the engine back on, or when you slotted first gear in a manual. Holley offers some tips on how to diagnose and fix a hard starting engine. I used to count up to about 10 seconds for mine. These people are saying it starts hard ONLY after filling the tank. If the “engine flooded start” didn’t help, spray a two second shot of Starting Fluid (or, similar product) into the air intake. A lot of diesel pumps have a lever or solenoid actuated lever that kills fuel delivery. Run the Diagnostic Test via actuations in the Glow Module and check the fault codes, failure of the glow system can cause hard starting and no start conditions particularly in cold weather. The problems that can occur due to the cold weather are well-known and fairly common, such as using summer-grade fuel in winter, a bad glow plug system, slow cranking, or thick, cold oil. See my related Tech Tip Duramax LBZ and LMM P0087 low fuel pressure code. However, they can cause hard cold starting as well. Note: The Glow Module is a common failure item and the typical cause is a shorted glow plug, it is best to replace all the glow plugs as a set with the module. Diesel engines have a much higher pressure exerted on their fuel systems than regular gas engines. have someone crank the engine over. If the valve fails, it allows gas to drain back to the tank. This procedure was written with the intent to provide a quick reference and guideline to starting a new or rebuilt engine if a dyno is not available. Check gauges light may illuminate and voltmeter displays 11 volts or less. This common fault can cause a world of frustration. 3 diesel hard start cold stalls and dies. (which increases the TARGET rail pressure ). Check the age of battery and if it is past its lifespan, replace it instead of wasting money on recharging or diagnostics since that maybe the only cause of the starting problem. A bad camshaft sensor is likely to trigger the check engine light (CEL). Some engines lose compression when they are hot making them difficult to start immediately after they are shut-down. Engine, with a fuel injection system, is hard to start in the morning or otherwise after the vehicle has not been used for a couple of hours or more (the weather not playing a role). Many times this can lead to water pump failure. 6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. Although there are SEVERAL possible reasons for these problems, we have. Start the engine. Control system - The PowerCommand ® electronic control is standard. Most of the reasons by which a hot engine would be hard to start are based on problems related to the fuel. 3 and they said the only issue is hard start. Could the fuel pump cause hard starting and heavy consumption?. If you have used Stiction Eliminator, Diesel Extreme, and Diesel Winter Anti-Gel as recommended above, and you are still having trouble with cold starts, it’s likely that the glow plugs are not operating correctly. While these engines never started easily, this engine is getting particularly hard to start. Diesel engine troubleshooting and analysis of common problems + 10 maintenance tips for keeping your truck out of the repair shop and on the road. Water in diesel fuel can cause direct and indirect damage to your engines. This is likely the cause of problems like sluggish performance and inability to accelerate properly. Noticeable improvements in fuel economy or the “character” of the engine are also good indicators. This is most common when the engine is hot. I have a Bachelors in Diesel Science and currently work for and have worked with several industry leaders in diesel engines. Damaged fuel lines cause the engine to misfire and can possibly start a fire in the engine. Limp Mode Symptoms The purpose of the Limp mode function is to get you to the workshop in the safest way without damaging any engine components on the way to the workshop. Below are some useful tips on how to maintain a diesel engine, spending some time and patience, rather than copious amounts of money. It doesn't seem to matter much if the engine is cold or warm. This is often a hard lesson for some, but more power isn't always the goal. Soap box: Electronic pulsed fuel injections systems are complex and are not a topic for back-yard mechanics. 3 Power Stroke Diesel Engines, And How You Can Fix Them The legendary 7. Fuel contamination on 6. Engine speed may be higher than normal in case of transmission clutch slip, a sheared propeller shaft flange or propeller key, a damaged diesel engine governor, or a damaged propeller, however excessive engine speed will quickly be recognized by a marked increase in engine noise and vibration. None of them said it starts hard everytime you start the cold engine. If you have only 3 glow plugs working and you use starting fluid on it you are going to cause engine damage very quickly. The operator depends on the engine’s ability to start and restart in a reasonable time in all conditions, including very cold temperatures of -20°C (-4°F). White, raw smelling exhaust sounds like non combusted fuel due to poor detonation. Thats the source of lots of cold weather hard starting when it comes to diesel engines. The misfires may cause a loss in power, acceleration, and even fuel efficiency. Re: 3 cylinder ford 4000 diesel starting problem I am not sure if those tractors had a thermostart, but sometimes those can give a problem if they are stuck open. How to fix Valve Seals Valve Seals are not too hard to replace and can be done at home by someone who comfortable working on engines. Check if safety switch isn’t pressed. Both the air and fuel filter are very important in the Diesel engine. Cause: The engine overheats, causing the fuel line, fuel pump and carburetor to heat up. If necessary, repair the timing ring. Diagnose and fix marine diesel engine problems at sea. Some diesel engines use ether to start. What would cause a 96 7. The truth about stop-start engines While car engineers wax lyrical about stop-start systems, drivers find them quite confusing. If the engine cranks slowly, insufficient heat will be generated and the engine will not start. Will crank immediately after this first start and the same next day. Common Starting Issues in Trucking Applications S o you think your starter motor is on the blink (again!), and with a full truck you're sitting idle by the side of the highway halfway between where you came from and where you want to be, with a deadline looming and a crusty and inconsiderate client. Diagnosis weak spark. It came back as a glow plug relay (I guess it comes back as that alot even though it never seems to fix it) I changed it anyway. More thorough fuel pressure drop tests. 5V total on the cranking circuit. How to fix a Diesel that’s hard to Start Cold? Cold weather starting becomes increasingly more difficult as engine deposits build up over time. Finding the root cause of a hard starting engine can take some investigation. Ignore the light and continue driving slowly or in traffic and eventually the engine will lose power and stop. This is due to the way diesel engine must introduce fuel into the engines. Make sure you don't have fuel leaking from these ports. It feels like the engine is tight or has excessive compression and hard to turn over. Also, if I stall it while working it hard, it will not start unless I let it cool off. When the engine is stopped, turning the fan blade manually turns rough, grinding or does not turn at all. White, raw smelling exhaust sounds like non combusted fuel due to poor detonation. Sometimes gasoline refiners change from a higher volatility fuel to a lower one when summer approaches due to the way in which hot weather causes fuel to evaporate easier. If the meter records the compression reading below the range 20-35 bars or 300-500 PSI, then your car’s engine won’t start. An engine can be difficult to start in cold weather because of the thick, gooey oil. While changing my lift pump out this past Monday I noticed that I have more than a ideal amount of oil dripping out of my blow by tube. Diagnose and fix marine diesel engine problems at sea. The third module, the aftertreatment control module (ACM), should be powered up with the ignition switch-On, but is not required to start the engine. Either the GP heater, one or more glow plugs or the GP relay are possibly malfunctioning. Intermitedly so it is hard to start but not all the time and mostly when the ranger sets for a long time. he said he thinks its just the glow plugs but im iffy about it. The engine turns over and over but simply will not "catch". if its diesel engine it has 4 diesel heater in each cilinder usually after 150 000 kms or sometimes before its adviceable to change coz it doesnt heat as before and the end of the heater that is inside the cilinder cant get incandescent so its a sinonym of a bad start of engine. I have heard that it is possible to fit a different starter motor, which turns the engine over faster than the original starter motor, and ths improves starting. Both cars greatly improved their cold weather starts from simply letting the glow plugs heat 2, maybe 3 or 4 times concurrently before cranking the engine over. Diesel Smoke tells YOU a Story. A Yanmar diesel with around 400psi will become very hard to start. Fuel cannot circulate well due to the way in which vapor blocks it. he said he thinks its just the glow plugs but im iffy about it. software upgrade. Diesel fuel gelling clogs the fuel lines and fuel filters, preventing the fuel to pass through them. To thousands of diesel lovers, this 1,100-pound hunk of iron is the patriarch of the modern diesel performance era. Put small tube back. Watch these hoses for large air bubbles or pockets when starting the engine to determine the origin of the air leak. Read also: Causes of Car High Fuel Consumption in Diesel and Petrol Engines #11 - Bad Ignition Coil (Gas Engine) The ignition coils of the ignition system serve as an electronic engine management element which is responsible for converting the 12 volts of power generated by the vehicle into 20,000 volts. A lot can be learned by listening to your engine, so if your car starts to change its tune, you should take heed. The pinion is moved by the solenoid; there is an initial period in which the motor turns slowly to allow engagement, so the whole operation is more gentle and causes less wear on the teeth. Most turn over within 1. Tightened the terminal screw and it started like a champ. This prevents engines from starting or stops them due to fuel starvation. It will probably continue to start and run ok for several months without doing any work on it, but the list of things that need attention is growing all the time. If engine starts better doing this it might mean you have a seal gone hard in pump allowing fuel to try and syphon back to tank whilst stopped. Remember that as pressure increases, heat does as well. Cold weather causes soft solids to form, small quantities of which clog fuel filters and prevent fuel flow. * Over-sized boat propeller Match the propeller to your engine under normal operating conditions. J&K Engines is an industry-leading, Power Stroke and Navistar Diesel engine re-manufacturing specialists serving customers throughout the U. Low Pressure Fuel System 1. This will need to be pressure tested also. Sometimes diesel engines emit a white smoke while starting. Since diesel combustion relies on heat and pressure, instead of spark as in a gas engine, the glow plugs heat the combustion chamber before the car starts and for a little while after in order to optimize the heat in. Cold weather causes soft solids to form, small quantities of which clog fuel filters and prevent fuel flow. Fuel injector 4 harness is open or shorted. Ford Power Stroke diesel engines have a history that dates back to 1994. If engine starts better doing this it might mean you have a seal gone hard in pump allowing fuel to try and syphon back to tank whilst stopped. It can corrode components, encourage acid build-up, reduce lubrication and cause explosive damage to injectors if it becomes super-heated during combustion. I have heard that it is possible to fit a different starter motor, which turns the engine over faster than the original starter motor, and ths improves starting. Diesel engine troubleshooting and analysis of common problems with diesel engines. The chart below shows the most common questions asked by owners of Detroit Diesel engines 353 when trying to troubleshoot why their engines underperform. Could the fuel pump cause hard starting and heavy consumption?. We'll take detailed look at why this phenomena becomes a mystery, but fist lets have a quick review of what an engine needs to start. the faster a starter can crank a diesel engine, the faster it starts and the quicker it runs clean. Problems in this area will cause diesel engine starting problems, uneven running and white smoke when the engine is cold. If any one of these isn’t there, you aren’t going anywhere. (thats the alloy bar that connects the power to all the glowplugs). In over 40 years of diesel combustion research, Baileys has seen, repaired and prevented just about every cause of injector failure, and in this post we have compiled some of the most common symptoms, causes and ways to prevent the premature replacement of your common rail injectors. If the engine is too hot, then it won’t be able to start at all. Even a degree of movement or a thousandths of an inch is a start in moving the engine's reciprocating assembly. Parking outside in the cold could be a trouble. 0L diesel engine, then explain how the 6. Learn about this problem, why it occurs, and how to fix it. Most turn over within 1. In order for an engine to start and run cold, it requires more fuel than when it is hot. If you have a low battery or a weak starter you might not be able to get the engine spinning fast enough to start. The truck is STILL starting very hard, and by hard I mean lots of smoke and a miss at idle. 2006 3500 with 24 valv3 5. Hope that helps. Or, the customer may complain of a hard or no-start condition, while the engine is at normal operating temperatures, when using any type of good quality diesel fuel. Common symptoms are hard starting, rough idling, and oftentimes a truck that's smoking while it warms up in the driveway. Mechanical damage is associated with the high starting current drawn by a ramping. with two cycle where it be leaf blower weedeater etc; those Fuel Pump Diaphragms are a troublemaker, they get dried out after a couple yrsand wont supply gas to the Eng,. The first pop after you have put the machine together with your own hands is exciting and pleasing. Had this hapen on a '90 Sub, probably the same on a '97. This can cause the injectors, fuel rack and the injection pump's plungers to stick and not deliver fuel. They have also fitted engine temperature switch as it was giving an incorrect reading. Diesel engine generators are designed to operate with a load — most effectively in the 70% to 80% range of rated output. It's never a good sign and could indicate a problem with your engine, so the sooner you address it, the lower the risk of causing lasting damage. The first in this series was the 7. Fuel injector 4 harness is open or shorted. If you’re not out of fuel, and your engine won’t start, do this: Turn your ignition key to RUN. The engine is to be started with fuel other than diesel. The strange problem is it turns over great but won't start, oddly though if he can get a push it will start within 2-3 metres. It would spark if I removed the plug from the engine. My 190 was hard to start below 60 degrees and lopped at idle. It is possible that there is some crazy breather problemlate valve cover on an early engine,for example, so LOOK an THINK before starting down "Rebuild Lane" Low compression will cause all kinds of smoke combinations depending on load and speed,but this would be noticed mostly as hard starting,and low power. Ignition coil 4 harness is open or shorted. The Bosch common rail injectors, or common rail fuel systems, are very robust in their design and mode of operation. 3 Powerstroke IPR symptoms cause the same bad behavior in your diesel as a failing ICP, a leaking 7. One of the most common calls we get are from customers with a 2003-2007 Cummins that have developed either a hard start or no start condition. Perform the following steps to determine if the replaced fuel filters resolved starting difficulty. Mine wasn't sparking when hot. White smoke and difficult starts are often signs of degraded diesel fuel. SAFETY FIRST! If the car is on the ground, be sure the emergency brake is set, the wheels are chocked, and the transmission cannot fall into gear. Volvo Penta marine engines have been around for some time and are still a popular choice for sailing boats and cruisers. Disconnect the Engine Oil Temp (EOT) sensor at the rear of the oil reservoir. 0, the big issue that people have with them is the fact that the head gaskets love to blow out, and the EGR cooler loves to blow, causing plumes of white smoke to billow out of the exhaust like you're fogging for mosquitos. This is a general guide which will list symptoms for 944 starting and running problems and common causes of those problems. The trouble shooting we will do, also applies to the 4cyl and 5cyl diesel with the pencil style glow plug. If any one of these isn’t there, you aren’t going anywhere. Hello! My girlfriend has a 2000 beetle diesel and we are having a very hard time starting it. If your engine cranks normally, but won't fire up, you know that at least your battery is in good shape and the starter motor works. Low Pressure Fuel System 1. Both of these complaints are generally caused by a problem with cold start enrichment. A cold engine needs a fairly rich fuel mixture to start, and to idle smoothly while it warms up. it dosnt mater what the temp is out side its dose the same all the time. Hard to start Kubota I know this is a tractor board, but bear with me. There are a number of issues that will make a car hard to start. But if you do manage to get diesel fuel in your gasoline tank, the engine will probably not even start, and if it does, it’ll run terribly and probably smoke like a chimney. SOURCE: Thank you for your concern. It will also increase NOx emissions, which is the reason manufacturers usually retard the engines slightly in the first place. Cause: The engine overheats, causing the fuel line, fuel pump and carburetor to heat up. Rarely is it known exactly where fuel has been passed through before making it to you, leaving the likelihood of receiving contaminated fuel to chance. Shot a video to Ed and he recommended I send it to him for a possible rebuild. Petrol refiners often change a higher volatility fuel to a lower one when summer approaches. Replacing the filter should help sort the misfiring problem, but if misfiring persists it can also indicate a faulty fuel injector. When the engine is cold, no coolant flows through the engine. Diagnose and fix marine diesel engine problems at sea. Diesel Smoke tells YOU a Story Basically, smoke from a diesel engine indicates that something is not right. induction motor. Cold Engine Enrichment. 1) Patience and 2) penetrating oil. The 2003 Dodge Ram 2500 has 3 problems reported for hard start. 5 degrees F. I had a Volkswagon Rabbit diesel that was hard to start when cool. 4L fuel delivery system differs from the 6. The starter voltage drop should be less than. Turbo position is control by oil, injector pressure is controlled by oil, and of course engine lubrication. You may try wiggling the Speed and Reference sensor wires and connectors to see if the car will start. If the engine starts quicker, fuel pressure may be down, etc. If the engine cranks slowly, insufficient heat will be generated and the engine will not start. Attempt to start the e ngine. Holley offers some tips on how to diagnose and fix a hard starting engine. to test for injector knock ideally you will have the engine idling and making the noise consistently. 3L featured direct injection and turbocharging, and was probably the most reliable and durable engine in the series. Diesels rely on the heat of compression to ignite the fuel. Blue Smoke - Causes and Cures. This is more of a problem with higher hour engines. 9 Cummins ", The Cummins ISB was first introduced in late 1998. “The fix, was electric solenoid for EGR valve, it has a dump in the top of it (has a filter over it)and it was holding the vac on so when the engine was started cold it already had EGR valve open enough to cause minor over fueling (vac leak through egr valve)that the long decel period customer went through to second stop sign must be enough. The main difference (from a basic repair standpoint) is the carburetor setup. Be the first to review “Caterpillar C11, C13, C15 Truck Engine Troubleshooting Manual” Cancel reply Your email address will not be published. Found a loose wire in the glow plug circuit. After starting. What's the engine code you're getting?. More than likely, you have a problem with your vehicle’s cooling system or you have leaky coolant that is causing the engine to overheat. Leaking silicone Fluid - Excessive fluid leakage will cause the clutch to fail to engage. Attempt to start engine. 1- Fuel Filters 2- Battery voltage 3- Glow plugs and controller 4-Fuel line air leak. This is starting to change, however, as people are improving the diesel engine to make it cleaner and less noisy. The fuel filter water catchment chamber that collects water from the fuel system may be full. This could mean the fuel pump check valve is bad. Common Starting Issues in Trucking Applications. How to fix a Diesel that’s hard to Start Cold? Cold weather starting becomes increasingly more difficult as engine deposits build up over time. If not starting means the engine won't turn over once the engine is hot, your starter is overheating. It's not normal knock - it's pretty damn loud. New starter so I know it isn't the starter. 0 Cooling System Breakdown by Tom Georgalos This specific problem is aimed at the 6. STEP 2 – Perform a voltage drop test: Once the batteries pass your tests, perform a voltage drop test on the starter main cables. Monitor rail pressure and see if you have over 4000 PSI during cranking, if not one or more injectors can cause a hard start, see injector section for further diagnostics. The chart below shows the most common questions asked by owners of Detroit Diesel engines 353 when trying to troubleshoot why their engines underperform. Make sure you don't have fuel leaking from these ports. A lot can be learned by listening to your engine, so if your car starts to change its tune, you should take heed. Starting induction motors on isolated or weak systems is a highly dynamic process. Quote: They emit a mixture of gases and fine particles that contain some 40, mostly toxic chemicals, including benzene, butadiene, dioxin and mercury compounds. For the past month, about 60% of the time it has been harder to start then usual (longer time cranking before starting). 0L Ford Super Duty, and 2004-2009 6. Hard starting. The vibration can increase with with engine speed. Another reason why you may have an engine, which is hard to start while hot, is that it may be due to seasonal weather as refiners change from one fuel blend to another. The reduced volotitility caused by the added diesel will cause hard starting and will probably result in some unburnt hydrocarbons remaining in the exhaust gas from the engine; these may be reacted in the catalytic convertor causing it to overheat. You can feel it with the sole of your foot as it rests on the accelerator pedal, but the pedal does not pulsate greatly in the depressing direction of the pedal. This means when a DENSO system starts to fail, you get a significant of signs, such as engine starting to run rough, blow smoke, and rattling engine noises. Let’s take a look at the most common issues. I suppose the factory oil starts its fair share of the problems. Diesel hard starting when warm was created by sniper888 Gud day, hoping to find a solution here to my td27 diesel engine. Check the rotation of the plug wires. The truck is in really good shape having only 182 thousand KMs on it. The Biggest Problems With Power Stroke 6. Rough Idle When Starting Cold, Then Goes Away When Engine Is At Operating Temperature More Details Below I have an older, low mileage vehicle with a V8 engine. In fact, diesel engines come to rest more quickly than petrol engines because the much higher compression has a greater slowing-down effect on the engine. 0L diesel engines, and experienced technicians are able to determine the root cause very quickly. Check high pressure oil lines and high pressure pump in engine "V" for oil leaks. Replacing the filter should help sort the misfiring problem, but if misfiring persists it can also indicate a faulty fuel injector. The problems that can occur due to the cold weather are well-known and fairly common, such as using summer-grade fuel in winter, a bad glow plug system, slow cranking, or thick, cold oil. 3 PS Diesel truck this summer and as of lately (now that the temps are dropping below 45) I am having one heck of a time starting it. But most drivers accept there may be evidence of short puffs of gray smoky haze or vapour when the engine is accelerating hard or under heavy load. Leaking fuel injectors. In a diesel engine, the fuel and air are heated until they combust, which creates a spark that starts the engine. Diesel fuel injectors are spring loaded contraptions that “pop” open at a pressure of about 2000 psi. Identify all main components of an electric starter motor assembly 4. We need additional tests to isolate the actual cause. If the engine starts and runs, no further troubleshooting is required. If you have stopped to fill the gas tank and the engine will not re-start. To thousands of diesel lovers, this 1,100-pound hunk of iron is the patriarch of the modern diesel performance era. Note: The Glow Module is a common failure item and the typical cause is a shorted glow plug, it is best to replace all the glow plugs as a set with the module. Ignition coil 4 circuit poor electrical connection. That's very hard on engines and can tear the motor up before you even get it started. Home Equipment Fleet Maintenance Diesel Engines Diesel Engines: Get to Know Exhaust during startup and it causes raw diesel fuel to come out of the stack. If you have a low battery or a weak starter you might not be able to get the engine spinning fast enough to start. Another reason why you may have an engine, which is hard to start while hot, is that it may be due to seasonal weather as refiners change from one fuel blend to another. Should be a good solid 12 volts from your battery, 14. Causes of engine management light. This can cause the injectors, fuel rack and the injection pump's plungers to stick and not deliver fuel. In some cases, a yellow check engine light may indicate that a problem exists, but it's not very urgent. Re: 3 cylinder ford 4000 diesel starting problem I am not sure if those tractors had a thermostart, but sometimes those can give a problem if they are stuck open. Now after sitting 4 to 5 days and try to crank it takes several moments of cranking to start. Purchased and installed injectors. Water in the fuel system can affect the performance of a diesel engine, cause it to stall and if large enough quantities kill the engine (ie water in via the air intake). Heavy passenger and sailing gear loads make your engine work harder than it should. If the engine cranks slowly, insufficient heat will be generated and the engine will not start. 0 Powerstroke. Re: 1993 cummins won't start HELP!!!!! thanks for all the help, I put a new battery in it and it had been sitting for a couple of days and it started right up. Check high pressure oil lines and high pressure pump in engine "V" for oil leaks. You never want to take chances where your engine is concerned. 3L Power Stroke diesel engine was developed as a replacement for the aging 7. My first thought was that it could be the glow plugs, however after some reading, I believe that glow plugs are only required when temperatures are approaching freezing, which isn't the case here in the UK at the moment. Read also: Common Causes of Petrol Engine Blowing White Smoke. Make sure you don't have fuel leaking from these ports. Only when engine is has been running and I leave it off for about 5 to 10 minutes does it have a hard time starting. In most cases, replacement starters for these older motors are gear-reduction motors. It 'seems' to be coming from the engine rather than the pump - as if a pump setting/problem is causing the knock rather than anything physical within the pump. I read engine codes. The car was also hard to start and made too much smoke when cold. Damaged fuel lines cause the engine to misfire and can possibly start a fire in the engine. The vibration can increase with with engine speed. Fuel contamination on 6. Often times, this causes the oil to have problems at the time it circulates in the engine of the vehicle. This means when a DENSO system starts to fail, you get a significant of signs, such as engine starting to run rough, blow smoke, and rattling engine noises. This type of starter was used on most 1975 and older Toyota vehicles. An air filter cleans the air entering the engine and prevents debris from entering the engine and causing damage. Either the GP heater, one or more glow plugs or the GP relay are possibly malfunctioning. Look for oil or fuel-fouled electrodes. If you are experiencing. As stated, its a 99, so it should be a Powerstroke, and he said it starts fine cold, so I would rule out the glow plugs anyway, any diesel should start fine when warm without glow plugs. Replacing the filter should help sort the misfiring problem, but if misfiring persists it can also indicate a faulty fuel injector. Common Rail Diesel Fuel Systems Fuel metering control valve failure symptoms and diagnosis Mechanical faults can cause DTC’s relating to positive or negative rail pressure deviations. Watch these hoses for large air bubbles or pockets when starting the engine to determine the origin of the air leak. 3 powerstroke to hard start? looking at buying a 96 7. The car in question is a 1986 Mercedes 300SDL. Clean the sailboat bottom. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation. It can not be easily answered without some troubleshooting on your part. Fuel pressure sensors(FPS) What is a FPS? What does it do? Your common rail Diesel Engines is fitted with a fuel pressure sensor. Other reasons for blue or white smoke from engines include: Exceeding the engine’s oil capacity shown on dipstick. Cause: The engine overheats, causing the fuel line, fuel pump and carburetor to heat up. by Kyle McFadden. It's a real test of whether the spark plug is sparking under real conditions. In worse cases, it would not start at all. Hard-start and no-start complaints are a common issue with Ford 6. Your van started with the old glow plugs (although with some effort), but it doesn't start at all with the new ones (without Easy Start--by the way, please don't use any kind of starting fluid on a diesel engine--it can cause serious damage). The position of the flywheel on the crankshaft is the primary timing. Carbon deposit buildup on diesel engine components such as piston heads, fuel injectors and intake valves is a bigger problem than it is for gasoline engines. Check out the 10 ways you're killing your diesel engine with these easily avoided common mistakes. The car is starting to become difficult to start when the engine is cold.