When I first start out driving the car, and come to a stop, in drive, the car begins to run rough. After it warms up at idle, all is OK. 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. When you start the truck up it will idle really rough and almost die but it won't. I checked and fixed the under valve cover connections but they came back. DIY diesel problem diagnosis 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). The glue on the elbow near the TBI turned to liquid when the engine got warm and the hose would not hold a vacuum. The oil gets so hot that it vaporizes. Such a thing can happen when the engine runs very rich, depositing unspent fuel and particles on the pistons and valves. Just today on the way to work it sat and idled for a few minutes and started running a lil warm from where it usually runs. If engine will not reach operating temperature see manual. To put it another way, a 20hp engine at cruising revs is chuffing its way through a cubic metre of air every minute. At home, it's plugged in. The interesting thing is that if you even just slightly nudge the throttle it immediately clears up and runs perfectly smooth. It seems to run fine but at a slightly higher idle then norm. All Consumers. Why Is My Diesel Truck Blowing White Smoke Out of Exhaust When Driving? by Chris Stevenson Diesel truck engines come in domestic and commercial grades, and they run on a thick, oily fuel that has an ignition temperature of about 540 degrees Fahrenheit. It can also be the air cleaner is clogged, or the seal on the exhaust side of the turbocharger is allowing oil seepage into the exhaust. Lean the main jet under load until it starts to nose over, and then make it just rich enough to run OK, and your black carbon will be gone. The smoke should stop after about five minutes of the engine running. Even in warm, but not hot, weather, if I let the truck sit and idle in park for 10-15 minutes, it seams to get "hot" and will start the rough idle. Regular oil changes with good oil helps. Starts & runs fine when cold - symptoms show-up after a brief warm-up. I checked and fixed the under valve cover connections but they came back. The code scanner you are using must not be displaying all of the codes or is broken Start with a different code scanner from there have it diagnosed if you. After I replaced the PVC & grommet, the car starts OK. I have been trying to work out a few problems. Original symptoms were stalling at idle or near idle when slowing down during driving (again ran fine when cold). It runs fine but its just the tick over thats has the problem. The engine will still run rough on good engine mounts. 5 turbo diesel engine and runs bad on idle speeds up the engine and then almost dies over and over. 3 runs rough until it warms up, then, once it's warm, it runs much smoother; Intermittent rough idle when cold; Miss/hesitation at light pedal low rpm; Holding medium (1000-1500) rpm in neutral causes surging and cutouts; Your truck may not not re-crank if the engine's hot. I did the blow test on the hose and it held but with a vacuum pump it was clear it would not hold. When this happens it's like a "erratic electrical component operation" and the lights and radio flicker but do not reset or shut off. My diesel mileage isn't all that great either at around 360 miles to a full tank driving about 50/50 city/highway. Page 1 of 3 - Jd 400- Gets Hot, Runs Rough, Blows Smoke And Fire Out Muffler And Dies - posted in John Deere Tractor Forum: After mowing with my John Deere 400 for a while, it starts to blow some smoke out of the muffler and runs rough, sometimes will blow fire out of the muffler and then dies. okay i have a 2003 F-350 with the 6. It’s got to be able to breathe in, and breathe out, and any restriction in either direction may result in rough running, loss of power, and black smoke. A couple of times it has even stalled out. Details: A condition of running rough can be one of many factors. In an internal combustion engine, the expansion of the high-temperature and hhigh pressure gases produced by combustion applies direct force to some component of the engine. I’ve found this tool is helpful in diagnosing 6. This insures that the idle motor has the most range and is not operating near-open. Yet another specific symptom is a result of the Tinnerman nut coming loose. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. Consumers are enraged over the poor quality of the diesel engine in Super Duty Trucks and Excursions. Filters are usually changed at about 100 hours, so if that might be a good idea if it hasn't been done. Four of the most common are rough running, high fuel consumption, turbocharger failure and, sometimes, total engine failure. I have yet to get one, but will soon. However, it is easy to recognize the problem, as during rough idling either the engine would run at an irregular rate or it may have varying RPMs without your foot on the gas pedal. Is 5679 hours a lot for a Perkins diesel?. Once your engine does restart, it'll run and then idle until it shuts down. The current owner had it at his camp and put all but 400 of the hours on it. Improper fuel. Some of you may know of this but to the average diesel owner it's a term not usually associated with cars. Runs fine, then when warm it idles rough until it stalls intermittently.   Start the engine and watch for the darkening/spotting of the brown paper with diesel spray, this will indicate quite clearly where the problem lies. 0 liter going strong! Be sure & check out Part I as well!. net The IDI, TDI, and mTDI source. Express Auto Inspections says: While modern vehicles use a fuel injector system to burn gas, many older cars use a carburetor to process fuel. The engine hesitation on your Dodge may be created by problems in one or more components. 0 DIESEL FORD WONT START ON A HOT RESTART WILL START AFTER COOL DOWN. Q: The car runs fine at start up but after 20 0r 30 miles, rough idling start occurring at stop lights. Will lift hood, let engine cool (10-30 minutes), and then engine starts fine. It runs to good except for the rough idle and shuttering. okay i have a 2003 F-350 with the 6. At the 600 RPM idle I even had some problems with the engine stalling when I was slowing down to a stop or slowed down to turn a corner. What Causes An Engine Run Lean? The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber. Any lack of engine oil in the system, or even dirty oil, will lead to extreme engine wear, and driving a car low on oil can lead to some pretty bad situations. The mechanic changed out the glow plug relay and again it started fine 5 or 6 times. Average repair cost is $460 at 54,750 miles. HOWEVERwhen starting cold, if it gets the least bit cold outside 20 degree F or less) the idle goes rough and if I give it gas it stalls. At cold start is sounds/feels normal. Immediately upon getting it back, began having starting problem. An engine needs more fuel when it’s cold than it does when it’s warm. Learn more about Chevrolet Equinox at the Edmunds. Diesel engines and warm weather ! 2000 a week, currently running a 58 plate TDCI 2. net The IDI, TDI, and mTDI source. Check out the 10 ways you're killing your diesel engine with these easily avoided common mistakes. This program works by running "extra" current through the close coil to generate heat and warm up the spool. Diesel hard starting when warm was created by sniper888 Gud day, hoping to find a solution here to my td27 diesel engine. Once the engine warmed up, it would sputter a bit and run rough, occasionally slowing down almost to idle, cough for a few more seconds, and then run back up to full throttle (or whatever the throttle was set at). As the engine warms, it not longer needs the richer cold idle mixture and the engine runs smoother. This chart is to be used as a guideline for troubleshooting engine problems. or the engine isn't hot enough to burn the fuel (most likely give your rough idle and ok when warm. After warm-up, however, it runs rough and barely idles, sometimes stalling. I wish I did that first. Fuel line or fuel filter plugged. Duramax diesel. It's likely you've experienced a rough idling vehicle - which just means the car feels rough and bouncy when the engine is running. There is a Service Bulletin for performance problems that are similar to yours. 2020 Ford Reviews; 2020 Ford Police Interceptor Review By Larry Nutson; 2019 Ford Reviews; 2019 Ford Edge ST 12 Years On - Review By Larry Nutson; 2019 Ford Edge ST Review By Larr. 0, rough idle warm, Ok new injectors, oil change, new turbo, started great, but warms up has a miss, t6 rotella oil, did same thing before work so thought it was my stockers, no codes yet, unplugging icp doesnt help, ficm is good too. Espar makes diesel fired block heaters for people who can. Recently (and I think it is getting worse with time) the engine runs quite rough when first started up from cold. The lubricant in the purge will reduce the “nailing” or hammering in the injectors and the clean fuel will reduce the combustion knocking sound. Re: Massey Ferguson Running Rough It would seem to me, that in addition to the problems you found, it's running too rich. A couple of times it has even stalled out. The PowerStroke fuel injection system is designed for diesel burning vehicles. Welcome to the Ford engine light Question and Answer Page! This page should save you some time from submitting a duplicate question and having to wait for a response. If the ICP reading goes above 1600 within the first thirty seconds of testing there could be a cracked pickup tube or missing seal. Or you could have a bad glow plug control solenoid, not stayig on long enough. Why keeping fuel pressure above 41 PSI is so important and how to diagnose which cylinder is the one causing the miss. it turns over (cranks) very quickly but won’t fire-up. 3 300 Hp Warm engine rough Idle Some time ago Cummins issued a service bulletin to change the wiring from the old connector and lead that goes to the fuel pressure sensor to a new connector and lead - an upgrade kit was issued for this which included a new connector, three crimp connectors and an instruction sheet. SAFETY CAUTIONS Caution Other considerations • œ Never alter or modify the engine • œ Warming up the engine Altering or modifying the engine in any way will Before starting work, warm up the engine by nullify the warranty. Hint: Disconnect the O2 sensor, if the car runs better suspect that it may be bad. To many owners of the older Mercedes diesel cars, the vacuum system continues to be an amazing mystery. Use the correct engine oil. BX2200 running rough smoking no power after warm up Tractor Engine Repair Rebuild Tractor Engine Repair Rebuild I have 100 hrs on a BX2200 which was stored outside most of the summer and out in the rain for the last few weeks. Mostly its a rough run cold condition but in severe cases it can be a no start or pretty harsh misfire condition. The excessive diesel knock occurring for the first few minutes after a cold engine start was due to engine oil mist being inducted into the cylinders from a failed turbo seal on the compressor side. 0-liter EcoDiesel engine. A bad cap vent can produce a range of engine running problems that include no starts, stalling, poor performance or air in the fuel lines. 2003 F250 Ford Diesel Truck 6. I got to and from work just fine, but while letting the car idle in the parking spot of my apartment for a minute before shutting off the engine the check engine light finally came on. In this video I try to explain whats going inside the injector. There are several common causes of engine vibration in a car, and they all result in shaking and noises that can be quite alarming and sometimes scary. Engine and engine cooling:engine:diesel. Check out the likely problem and solutions for your inline type fuel pump vehicle if you are facing rough idle when engine is warm. 3L oil changes aren't done regularly and the oil sludges up any it will buildup inside the injectors and make it more difficult for them to fire. The diesel engine requires a supply fuel line (fuel from the tank to the engine) and a return fuel line (fuel from the engine back to the tank). I've replaced the fuel filter and loosened the fuel tank cap to make sure it wasn't pulling a vacuum. Glow plugs are important for cold starting. On starting off down the road with a cold engine it is a bit stutter/jerky. 2, knock sensor Again, I'd expect to see more information. Oil that stays inside the valve on a hot engine shutdown and is allowed to cool slowly in the injector can aggravate the condition on restart. Average repair cost is $460 at 54,750 miles. What causes a rough idle? A rough idle can be caused by many different car faults. As soon as it warms up, it starts to idle rough, between 500 and 750 RPM. Troubleshooting Why Your Engine Lacks or Has No Power Even After It’s Warm. After starting it runs a little rough but then it runs fine. Utilizing the same style steering cylinder as found on the 2500B PrecisionCut™ Mower, 2500E E-Cut™ Hybrid Riding Greens Mowers, PrecisionCut and E-Cut™Hybrid Fairway Mowers, the 8800A and 9009A TerrainCut Rough Mowers can mow the straightest lines of any rough mower in the industry today. After the engine warms up, the aluminum piston expands more than it's iron cylinder, reducing the excessive clearance between the piston and cylinder wall. As a longtime (CAR) gearhead, Im comfortable with some degree of fuel odor (just normal evaporative emissions) coming from the engine if carbureted or from an old style fuel tank breather. Calibration updates are available on WDS software version B27. 0 Liter Diesel Engines The VT365, also known as the 6. Pulled valve covers off and found #7, #4,#8 not firing. Turbo Problems from Exhaust Back Pressure on 7. Any ideas? Right now I have a zip tie on choke cable to keep it choked a little bit so it runs ok. I'm not much on diesel engines but know a gasoline engine will run like crap if only 5 of the 6 plugs are firing, the more you pour in the fuel the worse it will complain. Is 5679 hours a lot for a Perkins diesel?. Diesel smoke (like blowby and oil use) is a worrying engine symptom which indicates that an engine is not running well, and its service life is likely to be shortened considerably, unless remedial action is taken. If you can get it running, do the following test - get up to operating temp, then while in park slowly run it up to 2000 rpm, hold it there, and slowly run it down. All glow plugs were changed and it started easily 5 or 6 times. When the unit fails, the engine can run too lean, which causes the vehicle to have issues. This is a good example of how basic engine diagnostic tests can work to pinpoint the root cause of the cars problem. Saturday January 13, 2007 11:36 We have in our shop a 1995 Topkick with a 3116 cat engine in it, this truck runs good if it is kept in the shop where it is warm but if you put it outside it barely starts and when it does it poors out white smoke. On paper it was an excellent idea, and I advised a lot of potential injector customers to have their FICM’s reflashed rather than buy a set of injectors. 3s come in last month that would run rough at random times. Diesel Engine difficult to start. 3 Power Stroke Diesel Engines, And How You Can Fix Them The legendary 7. 9 engines with a firewall-mounted water separator, the engine will start and run for upto a couple of minutes before any air which may be in the separator reaches the injection pump. Treating with Stiction Eliminator will clear out all of the stiction gumming your injectors. If a valve spring has broken or a cam lobe has worn down, it will cause the engine to misfire and run rough due to the loss of compression. Garrett also says your Turbo runs at 1600F. A couple of times it has even stalled out. When I shut it off I can smell unburned fuel. Cummins ISC 8. 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. Once identified the work can begin – Run the engine until nice and warm then turn it off and remove the keys. 0, or on LCF with the 4. Other reasons for blue or white smoke from engines include: Exceeding the engine’s oil capacity shown on dipstick. All of the runs would start at an engine temperature of 185ºF. Help, I've Put Petrol In A Diesel Engine - FAQ Have you accidentally put petrol in a diesel car or vice versa? Read here to learn about the consequences and what you can do to solve this problem. If I raise the engine revs to 1000+ it goes away, so it's probably the engine idling in a rough manner that is causing it. The truck hitches slightly when taking off from a stop light when 7. any tips on what can fix this. All parts installed on this truck have been genuine Cummins parts installed by Cummins. Running out of fuel. ” This article has scratched the surface of engine maintenance, and you can get lots of great information from the Boatowner’s Mechanical and Electrical Manual , by Nigel Calder. It smooths out in less than a minute, but I have to rev it up and down several times to get the cylinders firing, if that makes any sense. On June 24, 2008, I was driving when my truck overheated. Engine overheating. Why Is My Diesel Truck Blowing White Smoke Out of Exhaust When Driving? by Chris Stevenson Diesel truck engines come in domestic and commercial grades, and they run on a thick, oily fuel that has an ignition temperature of about 540 degrees Fahrenheit. A common complaint, especially when temperature start to drop is, “My car runs poorly cold, or my car is hard to start cold”. Of course, a misfire while accelerating meant the Toyota V6 got even slower. This helps to circulate engine oil and prevents stalling while the engine warms. When you run diesel purge through your engine most of these noises will disappear within ten to fifteen minutes. I have/had 2003 f350 king ranch truck with 67,000 miles. Ford motor company put out defective coolants on their 6. This takes HOT water, 180 degree or so. If you can get it running, do the following test - get up to operating temp, then while in park slowly run it up to 2000 rpm, hold it there, and slowly run it down. When you start the truck up it will idle really rough and almost die but it won't. However, currently the only type of biodiesel fuel that can be used in vehicles in the United States and Canada without violating manufacturer’s warranties is B5, a blend of 5 percent biodiesel and 95 percent regular diesel. Caterpillar C-15 ACERT runs rough after sitting 8+ hours? This question was actually asked to me by another Owner Operator: I have a '05 ACERT that has about 45k miles on a platinum inframe thru Pete in Grand Island, NE in October '11. First of all, the drag on a cold, stiff engine will cause it to crank over much slower than a warm engine. The engine ran fine when using the auxiliary tank since it has its own independent vent system. As for the stalling problem with the engines and lack of power, I would change both fuel filters first and check if yours have a screen near the rear in front of of the transmission. We drove it home from Fort Myers, Florida on April 12 after spending the weekend in Fort Myers. I was told by the dealer that I needed a new diesel injector pump (E2000) and then possibly the ECU. no engine lights. this isnt a constant issue. rough idle For the last 3 or 4 years during cooler weather I've had rough idling, stall outs, and loping, even in warm weather until I started buying diesel fuel at raceway or Shell instead of fuel at Walmart (Murphy oil). They are electrically controlled heaters which warm the engine prior to cold starts. loading up and still shooting fuel down into the engine or what?. com is a leading forum, social media community, and news site for everything related to Ford trucks, Ford truck parts, Ford truck mods and Ford truck photos. After warm-up, however, it runs rough and barely idles, sometimes stalling. The engine still idles very rough and shakes when below 1000rpm but seems to run smoother above 2000. ” This article has scratched the surface of engine maintenance, and you can get lots of great information from the Boatowner’s Mechanical and Electrical Manual , by Nigel Calder. Learn more about Chevrolet Equinox at the Edmunds. Plugs (gapped), distributor cap, rotor, exhaust manifold gasket are all new. The sensor then sends the information to the car's computer so it can adjust the fuel levels in the engine. If it begins to idle 'rough,' there are a number of possible causes. Most engines nowadays pull in upwards of about 19 or 20 inches of vacuum and nice and steady at idle. It restores lost power and fuel economy and smooths rough-running engines. Add a dose of Diesel Extreme at your next fill up and your engine’s fuel system will be cleaned, restored and boosted to its original performance power. Q: The car runs fine at start up but after 20 0r 30 miles, rough idling start occurring at stop lights. Few know this. com Car Forums! Read real discussions on thousands of topics and get your questions answered. or so it seems to anyway. I am very aware of safety concerns over fuel vapor in a boat. HOWEVERwhen starting cold, if it gets the least bit cold outside 20 degree F or less) the idle goes rough and if I give it gas it stalls. It runs fine when cold. If it sits for 8 hours or so, it still fires up quick, but it smokes for a little longer and idles a little rough for a few seconds. The 2001-2002 engines require an electronic speed signal input to run properly. net The IDI, TDI, and mTDI source. Loose or broken vacuum hose/vacuum leak. The better you know your diesel engine the better mechanical service and repairs we can provide. When the engine starts, let go of the key. 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. The engine will still run rough on good engine mounts. However, if you know what some of the most frequent caused of engine vibration are, you can not only avoid too much stress and worry, you can know. lately it has started idleing rough an being very sluggish off the line. be the cylinder not getting warm enough. 0 Powerstroke Diesel FICM Removal and Diagnosis Instructional Video. Its an old wives tale i say. The skips happen closer together until it runs rough and if let to idle will stall. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. 5 Turbo Diesel Smoke & Rough Start By Diesel Performance Truck on April 1, 2011 in For all of you with 6. to 4,500 psi. I don't see where there would be a problem, but I suppose it is possible that a certain PCV setup could have a bad reaction to this. 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. A diesel engine uses a high pressure fuel system,which means that it can't have air in it,it's kinda like the hydraulic brake system,if their is air in it,it won't work right. Other reasons for blue or white smoke from engines include: Exceeding the engine’s oil capacity shown on dipstick. So, the test is this: First thing in the morning, start the engine up and run it for 15 seconds while you listen carefully and memorize the sound and it's intensity. They are electrically controlled heaters which warm the engine prior to cold starts.  When this happens to coolant burns/evaporates with the combustion process and appears as white smoke coming from the tailpipe. it will act up for a little while then it quits and goes back to running normal. Trace down the thick push lock wire on passenger side in engine bay, disconnect it and jump power to the wire going away from the cab, towards the starter. with no problems. Just removed throttle and replaced bad TPS and also did the o2 sensors, codes cleared, but van still has terrible hesitation and lurches when I try to accelerate and doesn't sustain a good idle, but only when engine is cold now , after sitting all night. Diesel engines do tend to cost more initially than gasoline engines, though their lower running costs and longer operating life generally offsets that. Even in warm, but not hot, weather, if I let the truck sit and idle in park for 10-15 minutes, it seams to get "hot" and will start the rough idle. Some of you may know of this but to the average diesel owner it's a term not usually associated with cars. Any lack of engine oil in the system, or even dirty oil, will lead to extreme engine wear, and driving a car low on oil can lead to some pretty bad situations. In summary, the common rail diesel fuel system was not at fault on this occasion. An electrically operated magnetic oil pan heater will help warm the oil and make the engine easier to turn over. They replaced #6 injector and the rough idle and smoke went away. This problem has been getting worse over the last 2 years. The engine will still run rough on good engine mounts. Reply 1: What do you have for codes check for vacuum leaks. 4l it runs rough for a few seconds then smooths out. Fuel pressure sensors(FPS) What is a FPS? What does it do? Your common rail Diesel Engines is fitted with a fuel pressure sensor. Air intrusion into the fuel supply system. I am very aware of safety concerns over fuel vapor in a boat. Diesel engines are real misers when it comes to sipping fuel. Above 15°c she sounds like a 20 year old transit van!. I take the cap off my F150 all the time while running. Loud clacking under engine cover. After about a minute or two the idle will smooth out and run fine. No smoke looking for some ideas, Could this be a CPS issue ? I always thought that when the CPS went bad, the motor would not run I have replace a couple of these through the yearsHard to get at most of the engine as it is in a van. Within a short period of time the car will return to rough idle as the underlying problem has not been fixed. We usually refer to an exhaust backfire as a "backfire", and backfiring through the carb as "spitting" or "coughing". It clears up after about 5 minutes of driving. I am having a similar problem with my 2011 Cruze. I have recently bought a 2005 x-type 2ltr diesel. I called Blue Chip Diesel and talked to Doug and Chip there personally, they told me to try the other ecm again and this time pay attention only to if the truck will idle up on its own disregarding that it runs rough to narrow down the idling up issue. That's why diesels continue to be a popular option in many pickup trucks today. Insufficient fuel supply. Similarly, rough metal regions within the piston chamber can cause this same problem, since they can glow red. Idle problems may originate in a worn out component, a. Hot shot’s secret is a good deal to be on the list on number 3. This electric spark has to happen at exactly the right time or the engine will not run properly. They can smooth rough idling, reduce emissions, lubricate the fuel system, minimize the build up of sludge, and more, ensuring your diesel engine stays in tip-top shape for years to come. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. This also allowed me to select turn-around points and to normalize the engine temperature. But diesels are also known for their idle clatter, black smoke and cold-weather starting woes. It will start to shake and the motor will run rough for a few seconds then stop. If you can get it running, do the following test - get up to operating temp, then while in park slowly run it up to 2000 rpm, hold it there, and slowly run it down. If the compression is weak or highly imbalanced you will not be able to solve the rough running problem short of an engine overhaul. 7 Re: Ford 7. Top 10 Causes of a Rough Idle 1. The engine runs great with plenty of power when running down the road but when it idles it will start to develop a slight "hicoup" where the rpms will jump up to 850 or so. * Valves out of adjustment (OM615, OM616, OM617 and all earlier diesel engines). 205 is NOT too hot. 3 powerstroke has loping idle on starts hot or cold u can acc rpm to 1000 rpm let off it idles ok Posted by ajready on Apr 07, 2010. You will see some of the best restored John Deere, IH, and Rumely tractors. Recently, it started acting up. 3 edge juice with attitude, stock. It cost less than the valve. Difficulty Level: 1. Low idle set too low (Below 1000 RPM). Some of the engines are purchased as a rough casting kit and a set of blue prints. 0 focus, up until the weather getting warmer I have been managing an average of 55mpg, of late I'm struggling. A choke that fails to open or sticks shut during warm engine running will cause a constant misfire and rough idle. Air filter is new. acts like it is starved for gas when trying to accelorate on the road. The addition of an extra coil allows the glow plug to have a "self-regulating" feature. rough idle and cutting out "UPDATED HELP!!" my truck started idling rough after starting and does it a while (hot or cold eng) after starting until i drive 20 min or so it also has cut out twice now in a week i installed an ez @3 weeks ago maybe it??. There are two main contributors to the answer. 0L recently it started blowing black smoke above 2000 RPM which previously it didnt smoke at all.  This smoke can be differentiated from moisture during a cold start by a sweet smell and will continue even when the engine is warm. Treating with Diesel Extreme will clear out the debris in your injectors. With the engine warm, it should read around 100 ohms. CarComplaints. How your engine idles is a good indicator it its overall health; addressing the problem sooner rather than later and checking all potential causes is important. Be sure to use a thermostat. Timing belt was changed just over 20000 miles 135000 on the clock now Don't think it the engine mounts. Loud clacking under engine cover. 0 DIESEL FORD WONT START ON A HOT RESTART WILL START AFTER COOL DOWN. After, approx. 2006 ram 3500 5. that went on a day or two then yesterday it started running rough (like a miss on several cylinders) at idle and up to 2000 rpm, seems to smooth out after that, and it doesn't do it cold, but as soon as it gets warm it starts acting up, i took the EGR out and. DIAGNOSE – ENGINE IDLES TOO HIGH. The engine misfires or runs rough when it is fully warmed up at constant speed or stopped and really bad when pulling a load up a hill or when power breaking. 7 Re: Ford 7. If your engine is idling rough and the check engine light is on, you can get cheaper scanner or code reader that will read codes from the PCM/ECM. Air in fuel system. This causes it to stick open, causing a rough idle or engine stall. Everything went pretty well until the very end. A cold engine runs with less efficiency and the PCM also commands a higher idle speed. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. This is a good example of how basic engine diagnostic tests can work to pinpoint the root cause of the cars problem. Warm weather rough running? Hi all please can anybody advise solution to my insignia in cold damp weather around 12°c it runs nice and sounds well. And not sure, hasn't been on the road since, but the smoke is quite obvious during day and night here. The smoke should stop after about five minutes of the engine running. Disconnecting one injector wire reduces the injector current enough to allow the engine to start. I can hear and feel the vibration, it’s very noticeable. 18-06-95 94-95 5. Now just a rough idle. I only use diesel fuel but in cold temperatures the diesel will gel and either not move at all and the engine will not run or move slow and engine will run rough. Reply 1: What do you have for codes check for vacuum leaks. Another problem resulting from worn parts is a delay in the start of injection which in turn results in rough running at low RPM or your diesel engine not starting. Now I think its something simpler. Replaced ICP, IPR, CPS, injector o rings, oil inlet adapters (pucks) and one injector that threw a code. 0, rough idle warm, Ok new injectors, oil change, new turbo, started great, but warms up has a miss, t6 rotella oil, did same thing before work so thought it was my stockers, no codes yet, unplugging icp doesnt help, ficm is good too. Plugged air intake system. Solution: Fuel filters. Diesel runs great for 1/2 hour then very low power. I get there let it warm up and the truck starts missing again before I. This electric spark has to happen at exactly the right time or the engine will not run properly. Rough idle, especially hot: Could be caused by anti-foaming agent depletion, incorrect oil, or leak at the oil pump pickup tube. 3 IPR Solenoid will come off and your diesel engine will die. 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. This can lead to the engine running too rich or too lean (check your sparks for evidence). USUAL CAUSE The usual cause of abnormally high idle speeds are vacuum leaks or an inoperative idle speed control motor. With respect to our problem of rough running, an EGR valve can be a cause if it becomes fouled with carbon. It's also a good idea to test the 'stat ahead of time even if it's new.