Diesel Engine Runs Rough When Warm

PDC HAS A FULL TWO YEAR WARRANTY. The engine may only misfire and run rough when cold but then smooth out as it warms up. Whats going on here? but driving the vehicle this way for 20,000 miles. Its an old wives tale i say. EPA07 SERIES 60 ENGINE OPERATOR'S MANUAL INTRODUCTION This guide is intended for use by the operator of a Detroit Diesel Series 60 engine used in the following applications: On-Highway Vehicles Fire Truck or Crash/Rescue Vehicles Non-Genuine and Rebuilt Component Quality Alert Electronic engine controls have been instrumental in aiding engine. Clean box & replace filter. (some people who "call themselves mechanic's" are just that!) ,. The engine ran fine when using the auxiliary tank since it has its own independent vent system. USUAL CAUSE The usual cause of abnormally high idle speeds are vacuum leaks or an inoperative idle speed control motor. Trouble code P0118 - Engine Coolant Temperature (ECT) Sensor Circuit High Voltage, indicates that the VCM (computer) saw a voltage above 4. If the engine runs rough or misfires, it could have a clogged carburetor. There are two main contributors to the answer. Everything works fine until it warms up for say 15 minutes or so, then if the engine retuns to idle, it will not go to full speed again. 4L problems as we look at the bad side and ugly side of a good engine. This will kill your engine. i all, I have a 1985 John Deere 850 (3-cyl Yanmar diesel) with just over 1,000 hours. If the truck runs rough when it's cold but clears up when the engine is warm, you have a stiction issue in your injectors. Start the engine. 6 LHU 2007 - 2009 Cadillac SRX, STS, XLR PIP4577M SES light with DTCs P0171 and P0174 - Possible air leaks L52/LL8/LLR/LK5/LLV. Heavy oil or crude oil smell - fumes are blown into cab from crankcase vent on front of engine Relocate the blow-by bottle by extending the vent hose. Ford warranties diesel engines to 5 year 100,000. Hot shot’s secret is a good deal to be on the list on number 3. Posted: Fri Jun 17, 2016 4:00 pm Post subject: Rough running 5000 4 cyl diesel We have this '64 Ford 5000 with a 4 cylinder diesel with a Simms injector pump. When it is warmed up runs great. That's why you usually see diesel rigs idling over night. However, in cold weather it's worth checking the glow plugs: these are pre-heaters fitted to most diesel engines to warm the air in the intake to improve cold starting. This engine misfire didn't arrive only under load: It could as well show up at idle as when accelerating. When the engine starts cold the fuel mixture is rich, black smoke from the exhaust. In this scenario, refiners alter from a fuel blend to another. A valve adjustment (on engines up to 1885) followed by a compression test must be done first. No problems when the car is hot. If your engine falters and stops when it's running hot, either in hot weather or in demanding conditions, it may be due to a failed amplifier module. Recently, it started acting up. Treating with Diesel Extreme will clear out the debris in your injectors. I normally let the engine idle prior to turning off, then it shuts off perfectly, since the cylinders and piston's aren't super hot. The number is 09-24-3. Diagnosing Engine Difficulty - Diesel Tractors. 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. The engines cooling system is designed to keep the engine from overheating while in operation. One of the most asked questions that I get each day is “my check engine light came on today, what can I do to turn it off”. 0L Ford diesel engine may experience no starts, hard starts or rough running when cold and may be accompanied with diagnostic trouble codes (DTCs) P0611, P1378 and/ or all 8. 5L Troubleshooting & Repair Guide was our very first publication, and it has always been popular with diesel owners - and for good reason. A choke that fails to open or sticks shut during warm engine running will cause a constant misfire and rough idle. 5 diesel runs like crap! I am a little late to the party on this one, on your PMD make sure it is a Standyne not a D-Tech or a Flight systems, they have been having a ton of problems with them, im talking the kinds of problems that cause the truck to accelerate full throttle on its own. Try cycling the key a few times before you start it. Espar makes diesel fired block heaters for people who can. Thin air can also cause preignition. Treating with Stiction Eliminator will clear out all of the stiction gumming your injectors. In an engine as expensive as a modern diesel a $20 part is good insurance to keep it operating properly. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. Idle is slightly better warm but still shakes the truck. Standing next to it, you wouldn't know it was a diesel unless someone said so. I purchased a 2016 Duramax GMC Canyon Crew Cab SLT on June 9, 2016 and it currently has rougly 13,000 miles on it. The advice and opinions given are not intended to be a full diagnostic guide and should not get used as such. If your engine is running rough or if there is a cylinder misfire due to a mechanical issue, the needle on the vacuum gauge will bounce around indicating a mechanical failure with the engine itself that will need to be addressed. Engine will run, but it surges, hunts for a constant RPM 1. Low levels or loss of coolant, poor air flow through the radiator and a defective thermostat are just a few of the problems that could cause a diesel engine to overheat. We ended up having a good weekend, although we could only run about 7 knots with the engine running slow. That apparently caused that cylinder to have no compression, hence the very rough idle condition (engine was only running on 7 cylinders). To reduce the likelyhood of this condition, there is a revised program available for the Fuel Injection Control Module. Then a close friend of mine told me about Hot Shot Stiction Eliminatior, which was engineered to remedy this specific problem. 0L Excursion, 2003-2007 6. It is like a previous post said, it only happens on the first start of the day and lasts until the engine is good and warm. (some people who "call themselves mechanic's" are just that!) ,. Always allow the oil to warm before using heavy throttle or running the engine above 2000 rpm. The 2014 Jeep Cherokee has 4 problems reported for engine runs rough. The average service life of a diesel engine is usually about 10 years. The first thing you notice about Ford Motor Co. See - Engine runs rough at idle. Typically though when the engine warms up the rough idle from this will go away. If the engine runs rough after hitting a rock or stump, check the flywheel key–a damaged flywheel key will disrupt the ignition timing. The Port engine is running very smooth at idle, (as before) And the STBD engine, is 'hunting' at a even lower freq than before Period is a bit less than 1 sec During manouvring, we can feel the "pulsing" behaviour of the engine so even under load the engine is "hunting" What could be the cause of this ?. 2002 ford f250 7. The injectors had been sent away to be tested and returned with no fault found. A bad hose in any part of the engine is easy to fix. He is oily, malicious, devious, scheming and full of ideas to get revenge. Start doing it yourself with the confidence that comes with 100+ years of experience. It cleans your engine while you drive, helping your car run smoother, longer. Use this simple Q&A format list to troubleshoot small engine problems you may experience with your lawn mower, snow blower or other power equipment. I put my finger on the inlet hole, and the tractor idled fine and never died. Runs great when engine is cold. VCDS AND PD TDI ENGINE HEALTH CHECK This guide applies to most VAG pd tdi engines. When the engine starts cold the fuel mixture is rich, black smoke from the exhaust. When the oil and engine temp reaches normal the truck will run like normal with no performance problems. At the end of the drive I ran the car's internal "Key On Engine Running" self test which didn't show any errors. Cycle the ignition to off and back to the run position to activate the injector pre-cycle. Diesel EGR problems. This is what caused the rough idle and smoke on cold engine starts. any sugges. After a couple of minutes, the diesel knock subsided but the smoky exhaust continued. Well folks, I personally think that the Ford Powerstroke Diesel is an engineering masterpiece and a rock-solid platform regardless of which truck chassis type this power plant is installed in. Another problem we encountered only a few times was a defective cam sensor which caused the engine to either quit all together or run very rough. If it took several turns to start then the pump was faulty. 5 and purrs like a diesel kitten. i have a 2004 f150 with a 4. The only changes I made to the car was to add flames to the finders back in 2003 I have only use Mobil or 76 gas in this car. Check out the 6. Relationship between temperature and running OK, rough idle at start and missing which clears itself, all point to fuel air mix too rich. I did the obvious solution. the engine light is on but not blinking. Average repair cost is $380 at 20,250 miles. After a day or so of diagnostics, found #6 injector leaking. Trouble code P0118 - Engine Coolant Temperature (ECT) Sensor Circuit High Voltage, indicates that the VCM (computer) saw a voltage above 4. HIGH PRESSURE OIL LEAKS High-pressure oil leaks run amok in the 6. 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). But cruising it tends to vibrate or shutter. 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. - page 1 - IDI Engine - VWDiesel. I have been experiencing cold weather issues with my Duramax, but much worse than jeffparkcity has experienced, with it stalling twice at intersections, with the last occurrence being by far the worse. If fuel cannot pass through filters to the engine, the vehicle will not run. With the engine idling, check the pressure level on the fuel pressure gauge. ENGINE RUN-ON, DIESELING -- RO-101 DIESELING, that nasty tendency of an engine to continue to run on, coughing and sputtering, after the ignition is turned off and there is no more spark. DIAGNOSE – ENGINE IDLES TOO HIGH. This accounts for why many freshly assembled engines operate well during the break in period, but seize the first time the throttle is hung wide open. Sometimes it has a really rough idle. Read more Ford reviews to learn about other models. by Kyle McFadden. i just bought this truck and am new to the dodge and cummins so any help would be appreciated!!. The number is 09-24-3. This will help keep the engine cool. Once the engine warms up, the gas is warm and so it runs okay. why is my car hard to start when cold but otherwise runs fine? Its a 1998 model SB Barina, (Corsa B) with an opel engine. I have tried to use simple layman's terms and still maintain accuracy as far as possible. To get the best possible experience on our site you should use latest version of Chrome, Firefox or Internet Explorer. In fact, many have reported that their diesel engine runs better with it removed. A choke stuck in the open position will not allow an engine to warm up properly. The injectors had been sent away to be tested and returned with no fault found. Cummins ISC 8. I suspect the problem is either with your oil breaking down from heat, fuel is getting into the crankcase, or it is over full. It also improves starting and firing reliability. 3 Diesel Powerstroke misfire runs rough code P1316 injector wire harness connection Ford F-250 6. If the compression is weak or highly imbalanced you will not be able to solve the rough running problem short of an engine overhaul. When the car starts cold, it ignores the input from the O2 sensor and runs off a predetermined fuel map with additional fuel to richen the mixture when cold. Avoid labouring the engine by changing up too early or using too high a gear. 3 starts fine but runs rough runs fine after it gets warm ???? - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. The arrow points to the rubber tube running to it. Exterior Features; Bodyside/Cab Step or Running Board: N/A; Bumper Step Up: N/A; Front Air Dam: Standard; Metallic Paint: Standard; Power Sliding Side Van Door: N/A; Power Trunk L. 5 Diesel or GM 6. For more information, we invite you to contact our offices in Dallas at 888. 1999 dodge ram 3500 cummings 5. If you have a fuel injected car one of the ticks you could be hearing could be your injectors firing. If it begins to idle 'rough,' there are a number of possible causes. This usually happens when I'm sitting at a stop light or when the car is in park. What causes a rough idle? A rough idle can be caused by many different car faults. The fuel tank breather can sometimes be blocked causing a vacuum in the tank which in turn draws the fuel back to the tank. Checked the. The only changes I made to the car was to add flames to the finders back in 2003 I have only use Mobil or 76 gas in this car. 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. After about 10 minutes when the engine is warmed up and I come to a complete stop the idle tends to fluctuate. I normally let the engine idle prior to turning off, then it shuts off perfectly, since the cylinders and piston's aren't super hot. Starts strong, but then idle is always rough and up and down when the engine is cold. When this happens it's like a "erratic electrical component operation" and the lights and radio flicker but do not reset or shut off. It starts fine when warm, and still idles and runs smooth once it starts, and, is not underpowered at all (other than the obvious standard underpowered condition of a 1. At cold start is sounds/feels normal. Regular oil changes with good oil helps. Another garage suggested diesel pump. Diesel engines revving uncontrollably Honest John advises regular oil checks to a reader suffering diesel particulate filter (DPF) problems on a Mazda6. How a diesel engine works - in layman's terms. I can only notice it when its in gear and i am at a stop. If the car's never overheated and runs fine when it's warm, don't worry about this. 5 and purrs like a diesel kitten. The leading community for owners of Cummins, Duramax, Powerstroke, and all diesel engines. They're also known for their pulling power and rugged durability. This caused a build up of diesel in the cylinder over period of time. Haven't let it run that long since it the rough idle and smoke started. Express Auto Inspections says: While modern vehicles use a fuel injector system to burn gas, many older cars use a carburetor to process fuel. Other reasons for blue or white smoke from engines include: Exceeding the engine’s oil capacity shown on dipstick. I reverse-flushed out the diesel tank with hot water but possible debris in the tank was not the problem. If seepage returns, they auto prime to begin pumping. Or you could have a bad glow plug control solenoid, not stayig on long enough. With the engine idling, check the pressure level on the fuel pressure gauge. The engine like I said has 201,455 miles which really doesnt strike me as enough for the piston rings to be toast by now to leak oil through (which I can back up with good service records). 3l diesel engine. Today you don't have a choke so it is either a sensor or the brain saying, "I'm cold" and wants another log on the fire. upon start up it would smoke quite a bit and would idle rough and about after 30 sec it would clear up just yesterday i let the grid heater heat up the motor and started and had no issues at all, thats when my truck would run bad, when i let the grid heater warm the motor. It heats up very quickly," Ellison comments. My Engine Runs Rough When It Gets Hot But Ok When Cold. It doesn't stay on any number for any period of time. Without glow plugs, a diesel engine would not start because the engine needs hot compressed air to ignite injected diesel. Perhaps most problematic, the bottom end of the engine would be subjected to far higher stresses at Diesel compression ratios than at the existing petrol engine compression ratios of 5:1 or less. Then a close friend of mine told me about Hot Shot Stiction Eliminatior, which was engineered to remedy this specific problem. In the "Old" days, that was a stuck choke. If the fan blade moves more than 1/4" front to back measured at the end of the blade. Here are answers to some of the most common questions we've been asked over the years. Wynns Engine Flush Petrol and Diesel 425ml available online at halfords. Recently while driving along at a cruise speed of 5mph it coughed and slowed to a snails pace. Next while the engine is still warm drain the oil and change the filter. Those engines are built to run forever with the only weak link associated to your issue could be the cam sensor, they were known to fail. One of my chip positions has a 600 RPM idle and it was much more noticeably rough idling than the rest of the positons which have a 750 RPM idle. My engine appears to start up perfectly when it finally starts. One thing that you have to remember is that all of the oil is going to foam after being churned by the pump and slung around in the engine. Run vehicle to full load and rated speed. You may have heard the commercial or seen the ad: Multiple tests by independent laboratories have shown that when properly applied to an automotive engine, Slick 50 Engine Formula reduces wear on. Any other suggestions will be appreciated. You may have to register before you can post: click the register link above to proceed. Why does my diesel engine blow black smoke? Under normal circumstances a diesel should only blow black smoke under initial start up and occasionally when under load or changing gears. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. When the engine starts cold the fuel mixture is rich, black smoke from the exhaust. ignition's red wire and the black Hot-Spark wire to the coil's - terminal. Glow plugs are important for cold starting. Order Wynns Engine Flush Petrol and Diesel 425ml Read reviews and reserve online. The number is 09-24-3. Fuel Pressure Leak-Down Test An area often overlooked is the performance of the fuel system not while the engine is running, but when it is shut off. In the "Old" days, that was a stuck choke. I had a fuel filter plug up on a diesel truck I had, it still ran okay but way down on power. Disclaimer: Technical data about smoky diesel engines is for general informational purposes only. At the end of the drive I ran the car's internal "Key On Engine Running" self test which didn't show any errors. A slightly damaged P&B assembly can, occasionally cause a rough running when HOT…since the thinner/hotter diesel. Ford motor company put out defective coolants on their 6. I think in my situation the 5w-20 was just too thin when warm because of wear on the engine. Engine Stalling, Surging or Running Rough. VCDS AND PD TDI ENGINE HEALTH CHECK This guide applies to most VAG pd tdi engines. The Pump Driver Cooler ( PDC ) was designed for 1994 to 2000 GM 6. By feeding the lower oxygen exhaust gas into the intake, diesel EGR systems lower combustion temperature, reducing emissions of NOx. Cummins will be the leading provider of electrified power in our commercial and industrial markets just as we are the leader in diesel and natural gas powered products. You can have ALL these problems and the diesel engine will run, but it will become extremely ornery. It doesn't stay on any number for any period of time. Misfire/Rough Idle. 3 Powerstroke Changed oil runs rough [ Re: roadrunner1 ] #3170486. 2002 ford f250 7. Being one of the largest fuel injection workshops in Australia and the Oceanic region, we pride ourselves on our outstanding customer service, professionalism and our experienced, expertly trained staff. Under a load on a hill it feels like I am loosing one or two cylinders. 2 Diesel with approx. In fact, many have reported that their diesel engine runs better with it removed. net The IDI, TDI, and mTDI source. White Smoke, Lack of Power, Exhaust Odor, Surge, Runs Rough, or No Start: The above symptoms on trucks equiped with the 6. thought they are really to be serviced ) are air in the lines. 6 LHU 2007 - 2009 Cadillac SRX, STS, XLR PIP4577M SES light with DTCs P0171 and P0174 - Possible air leaks L52/LL8/LLR/LK5/LLV. or so it seems to anyway. excuses after excuses. Check outside air temperature. Check Valve Diagnosis 1. The arrow points to the rubber tube running to it. The engine like I said has 201,455 miles which really doesnt strike me as enough for the piston rings to be toast by now to leak oil through (which I can back up with good service records). I have a 2004 Dodge Ram 3500 5. It seems to run fine and no warning lights come on but the engines idle seems rough and inconsistent. 5 diesel's legacy under license from General Motors. I ran the codes, had low voltage x4 oxygen sensors, and random misfires. Of the family, this is the only engine that uses a cast iron block instead of aluminum. I put my finger on the inlet hole, and the tractor idled fine and never died. be the cylinder not getting warm enough. 2008 Tundra 5. After about 10-15 minutes of driving when engine warms up, engine bogs down, idles rough, and dies when throttle is applied. the air filter is good, and I didn't notice any vacuum leaks. 3 rough idle and bad fuel economy: Help (self. If that happens the spacer and 7. If the engine is misfiring, call Detroit Diesel Technical Service Group. Here's what I Think. When it returns to what I call a loping idle and you try to run it at full speed again it may sit there lugging along for maybe 10 to 20 minutes before it will return to full speed again. Follow Kent's video series If your diesel engine is showing signs of overheating, don't panic until you do some detective work. Check out the likely problem and solutions for your inline type fuel pump vehicle if you are facing rough idle when engine is warm. Diesel engines are real misers when it comes to sipping fuel. It has the highest thermal efficiency of any regular engine because of its high compression ratio. net The IDI, TDI, and mTDI source. 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. The fuel tank breather can sometimes be blocked causing a vacuum in the tank which in turn draws the fuel back to the tank. Cummins ISC 8. He didn’t say misfire, he said running rough. Its an old wives tale i say. Buy New 2018 hangcha HC Brand New 4WD All Terran Forklift Diesel 2 5 Ton 3 Stage Mast for sale by Active Forklifts (Australia) Pty Ltd - Fairfield. So far I checked all wiring and connections to injectors, oil level good, replaced fuel filter and cleaned bowl. white smokes for about 1 minute and stops smoking. Below is a chart of common Engine problems and some easy troubleshooting to fix the problem you may be experiencing. Insufficient fuel supply This speaks for itself, not enough fuel in the tank or a problem with supply pipes being cracked or bent. If your engine is running rough or if there is a cylinder misfire due to a mechanical issue, the needle on the vacuum gauge will bounce around indicating a mechanical failure with the engine itself that will need to be addressed. When the car starts cold, it ignores the input from the O2 sensor and runs off a predetermined fuel map with additional fuel to richen the mixture when cold. We recently had a message from Jock who has been getting white smoke and misfire when the engine is ticking over (Perkins 3A. To get the best possible experience on our site you should use latest version of Chrome, Firefox or Internet Explorer. When the engine is cold it would idle silky smooth. The Biggest Problems With Power Stroke 6. The diesel engine has a high idle system to improve the warm-up time of the engine in cold weather conditions. After about 10-15 minutes of driving when engine warms up, engine bogs down, idles rough, and dies when throttle is applied. The engine also almost seems like it is shaking a bit at idle, and the rpm's fluctuate between around 700-850 rpms, not major but it is noticeable. Exterior Features; Bodyside/Cab Step or Running Board: Not listed; Bumper Step Up: N/A; Front Air Dam: N/A; Metallic Paint: Option; Power Sliding Side Van Door: N/A; Power Trunk L. Car has to be warmed up when you do it though. Diesel runs but won't rev up. net The IDI, TDI, and mTDI source. HPOP Problems. Posted: Fri Jun 17, 2016 4:00 pm Post subject: Rough running 5000 4 cyl diesel We have this '64 Ford 5000 with a 4 cylinder diesel with a Simms injector pump. When its warm outside and the engine is cold, the car starts and runs fine. it has the 6. White Smoke, Lack of Power, Exhaust Odor, Surge, Runs Rough, or No Start: The above symptoms on trucks equiped with the 6. 2, knock sensor Again, I'd expect to see more information. An obstruction in the breather tube (located behind the air filter) Damages to the cylinder/piston rings. 3L Power Stroke Diesel Engines The 7. An engine which is operating properly should run smooth without any excess noise. One diesel engine in particular that pops up more than most is the 3. As I said, blue smoke- not black unburnt. Stop the fuel flow to the carburetor, either turn off the fuel valve or pinch off the line with a pair of fuel line pinch off pliers or a pair of vice grips. net The IDI, TDI, and mTDI source. Average repair cost is $460 at 54,750 miles. Then, after about 1/2 hour it starts losing power and in a period of about 3-4 minutes it loses so much power that it can't climb a small grade unless I drop it into 1st gear. excuses after excuses. When the engine starts cold the fuel mixture is rich, black smoke from the exhaust. Components in the fuel, ignition, emission and other systems should work correctly. 3 starts fine but runs rough runs fine after it gets warm ???? - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Pistons inside the engine move up and down a cylinder. If the engine runs rough or misfires, it could have a clogged carburetor. Later in the afternoon, when leaving work (the car had been stood for over 8 hours), the ambient temperature was around 20 degrees Celsius, and the car took several minutes to fire up, with around 5 attempts with the starter motor for between 5 and 10 seconds per attempt. It runs normal with plenty of power & RPM's for 3-5 minutes then immediately bogs down with lots of black smoke. Ok here it goes. I have put on over 1000 miles on it since and no codes and no rough idling. Record the temperature when it opens. If the engine runs rough after hitting a rock or stump, check the flywheel key–a damaged flywheel key will disrupt the ignition timing. Clean box & replace filter. 0L Ford E-350, E-450, E-550 series vehicles equipped with a 6. Hey Dennis,, DON"T BECOME A PARTS REPLACER. It sounds like any brand new diesel truck I've heard when cold. Always allow the oil to warm before using heavy throttle or running the engine above 2000 rpm. 0-liter EcoDiesel engine. Usually, the source of the fuel leak can be determined by the time from when the engine starts to when it stalls. any sugges. I own a Chevy S10 and have my friends here that is the 2001 version and it has the plastic intake air set up on it, it is a 2. Read more Ford reviews to learn about other models. If the fan blade moves more than 1/4" front to back measured at the end of the blade. Then the rough idle and sputtering cruising at low rpm is gone. Typically though when the engine warms up the rough idle from this will go away. Most engines nowadays pull in upwards of about 19 or 20 inches of vacuum and nice and steady at idle. Once the engine warms up, it runs smoothly and the problem disappears. If the diesel engine won’t start, but turns over quickly on the starter motor, then a fuel problem – as above – is the most likely cause. - page 1 - IDI Engine - VWDiesel. It runs to good except for the rough idle and shuttering. The first thing you notice about Ford Motor Co. the truck will start and idle fine then go into running rough. I have used 2cycle and it had cleared it up just a little and diesel kleen or what ever its called that helped a little also. I suspect the problem is either with your oil breaking down from heat, fuel is getting into the crankcase, or it is over full. At cold start is sounds/feels normal. I get there let it warm up and the truck starts missing again before I. If it took several turns to start then the pump was faulty. It's likely you've experienced a rough idling vehicle - which just means the car feels rough and bouncy when the engine is running. It's inexpensive. It’s cold outside; you went for only a short trip up the road, the engine is not even warm yet but when you shut the engine off and get out you notice the cooling fans buzzing away like they do on a hot summer day. Runs great when engine is cold. 0 Powerstroke Radiator Repair Ford 6. Diagnosing Light-Duty Diesels Download PDF. 0l intermittent rough idle 2006 6. All of this after replacing my timing belt as well. Why does my diesel run fine but start so poorly? lots of cold weather hard starting when it comes to diesel engines. 3s come in last month that would run rough at random times. 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. I can hear the engine "laboring" at one spot and it lunges forward at that exact spot. I did the obvious solution. We also recommend using Diesel Extreme to clean out the fuel system on your truck. 5L diesel was available in 1/2 through 1 ton pickup models until its retirement following the 2000 model year. can someone tell me where the heater is , and what it is called. Myth: Diesel engines need to idle for 5 minutes or more in the morning, especially on cold days. HPOP Problems. The following morning the car again started rough (as if it were misfiring/running on 3 of 4 cylinders) and this time it took a good minute before smoothing out. Rough running 4X2 My Gator has driven smooth as silk for 10 years. Relationship between temperature and running OK, rough idle at start and missing which clears itself, all point to fuel air mix too rich. When I'm at a traffic light, the car feels like it is going turn off so I put it in neutral and from there proceed to "REV UP" the engine to prevent it from turning off. If the engine is capable, it will retard the. Loose or broken vacuum hose/vacuum leak. 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. Is there a small silver ignitor on top of the motor? It has a black wire going into it. Re: Roughish running engine once warmed up Tue May 31, 2016 7:27 pm On the spark plug front, I was most disappointed when I installed a set of the then just introduced expensive Bosch platinum plugs. If the engine is warm from running, the parts like the manifolds I've worked on diesel engines from 100hp to 1000hp for.