Common rail diesel rough idle. it didnt gradually go to high idle like normal.

Common rail diesel rough idle One primary reason is the engine's fuel-to-air ratio being imbalanced during the initial stages of warming up or when demanding higher power output during acceleration. 5 psi at the cp3, don't have a gauge on the rail. When he replaced the injectors that problem seemed to go away. Insufficient fuel flow may also result in rough idle, stuttering, and a severe loss of power. A diesel injection technician said the hunting at idle was caused by the Surge Control Vavle (SCV). 9 crdi with 80,000 miles on it. They actually call the stumble governer droop on the big stuff. . Mar 26, 2019 · While driving started running rough at low rpm. White smoke and rough idle are still there. She is just about to jit 100k on the odo. 9 that is hard to start and idles rough. I went to 3 different shops and they all said its normal common rail sounds. Citroens and Fords. The miss becomes smooth at higher rpms. Has anyone experienced this? Should I look into checking my intercooler hoses Therefore, we should go over what a common rail engine is before we get into the problems that you might encounter with one. Adjusting your diesel engine’s idle speed is crucial for optimal performance and there are a few key steps every diesel owner should know. When the truck is warm, you loosen off the idle lock and all's well But for a diesel, I wouldn't worry at all about rough idle. This Engine hunting is also a little worst when 1st started in the morning. When engine is running smooth measurement values at idle are less than 0. In a high pressure common rail system even a particle as small 10 microns can do damage. Aug 22, 2019 · Diesel: When found on Common Rail TDI engines, please see Technical Service Bulletin (TSB) 01-10-11 (Technical Product Information (TPI) 2023624). Using remote start, the truck starts fine, then tries to go into high idle and begins to surge and blow black/blue smoke from the exhaust. Mar 17, 2013 · new to the forums but I have been reading them for a while thank you all for the AMSOIL recommendation. My truck will run smooth and strong for 500 miles then come to a stop light and will start having a rough idle and bam light comes on p0191 code. It does not do it if I Jun 23, 2013 · The diesel specialist that helped me out was Specialist Diesel Servicing - Bletchley | A. k. Appr Jan 23, 2017 · 2013 bought truck, 2015 bought edge, 1/5/2017 checked oil, all is good, 1/8/2017 am, had problem with rough idle and heavy white smoke out of exhaust and filling up crank case, shut it down and did not drive it, 1/21/2017 installed II injectors, 1/22/2017 finished install, changed oil and started with identical problem heavy white smoke out Feb 25, 2021 · TL;DR My 6. The truck has ton of power and accelerates great. A common rail diesel engine is different from other systems because the fuel is delivered to individual fuel injectors via a common rail, and from there the fuel is directly injected into the combustion chambers. yes it still uses diesel to cool and lubricate, it just doesnt need as much to do the job. They are diesel engine specialists rather than Jag. At the same time the oil pressure gauge will drop to zero and the check gauges light will come on. 9 common rail that has been hard starting for a couple years, getting worse, and finally not starting without ether. 1 2. It doesn't sound like 3 cyl mode, it sounds like it has a big lumpy camshaft in it with a big lope in the idle. Without any warning (and almost simultaneously) it started idling rough and the check engine light came on. (F7TP***), bought one, went to put it on, well wont fit and wrong connector. 9 w/123k on it and am having rough idle issue upon cold start. However it now intermittently idles rough and sometimes stalls after it first starts. Fuel Rail Pressure and Desired Fuel Rail Pressure parameters with a scan tool. This will not adjust idle rpm speed since that is computer controlled. When cold, it's lumpy, shaking and hesitant, occasionally stalling. Jan 1, 2021 · It may or may not be of help but I recall some years ago when I had a problem with a Toyota d4d (common rail) engine. Thanks Shane May 30, 2023 · Only the #6 injector seemed to have any chance, as it cleared up the smoke a decent amount but still not entirely and did not fix the rough idle. It's an 05 5. I was just sitting in a parking lot in park at idle and had been there about 10 minutes. 9 Cummins, and I took the truck in for a rough idle/poor fuel economy/misfiring problem and the dealer ended up replacing the motor with a new short block. if not buy a fass, the stock filter systems on these common rail trucks is barely dependable at best. Jul 21, 2023 · Common-rail diesel injectors in the 5. Makes no difference (when idling) if I shift into neutral, reverse, or park. At 245k it is most likely an injector issue. A week later the truck started acting up. Below is a list of the most common conditions that lead to failed injectors. Inspect exhaust system for contact with cab, frame or body Hi Guys I only have my BT50 for short time and from the beginning the bakkie has a rough idle on start-up when cold in the morning. Hard to believe injector/s are "tired" already. 5 2500 with a 24 valve, but am learning the common rail cummins is a differnt creature. The systems used extremely high fuel pressure, electronically controlled injectors and complex exhaust aftertreatment to provide very high specific torque This is specific for 1977 to 1985 Mercedes W116 W123 and W126 chassis with the OM616 or OM617 diesel engines. Sep 25, 2020 · Customer stated that RPM's had been weird for some time but the performance seemed unaffected. When the engine is warm, it drives ok over 2500 rpm. 9 and in park or neutral it idles rough most of the time when it’s warm it sounds like it has a small lope but in drive or reverse it idles fine. pull it in to neutral and she stops. Jun 7, 2008 · the CP3 is a more sturdy unit over the VP44. Replaced with the now more commonly used pressurized common rail systems. Customer went to move a trailer last weekend and vehicle ran fine, stopped for fast food and upon start up, vehicle had high idle (1500 rpm approximately). Once shut off the engine may experience issues cranking over and it may not start at all. Background: I did run the fuel tank very low and then refill just before this happened, but that could be coincidence not causation. now the rail pressure is a different story. Called dealer, they gave me the wrong part no. Some folks like to pour diesel into a filter before screwing it on. Checked with my OBD Scanner and also the onboard system (clicking the key 3 times). Aug 4, 2015 · when starting it from cold (18*C) it runs rough, the idle is all over the place, sometimes it even stalls, the idle goes up and down and clatters when it does, then when the engine is a little warmer, the idle balances out. Well, I changed the oil too and then drove to work. 2. All DRV had the part number 057 130 764 H / 0 281 002 859 Just to note with the fuel temperature sensor disconnected all these managed to get rail pressure under control and idle perfectly. It's pretty noticeable as it stumbles, but the RPM needle is solid. As you can see the car has rough idle, and experiences very sluggish acceleration. Oct 4, 2022 · Most common cause is wiring issue on sensor circuit which is shared with other components Can go to newbies guide and in section 8w of FSM has wiring info. 0 starts but immediately stalls, or at best runs very rough with white smoke and then stalls under any throttle load/in gear. 0 common rail diesel engines are a lot smoother than the D4D at idle, esp. Or it can just have rough idle with no rail pressure change. Injector amount deviation seems to fluctuate on all injectors at tick over when rough at idle at temperature from -1xxxx to +2xxxx when rough idle I'm assuming its trying to correct The VCV is a common fault causing rough idle, hesitation and hunting idle, worn injector seals cause rough running, poor idle, poor performance, worn/out of spec injectors likewise cause all these problems, the trouble you have is which one is it, last two are also known to cause cracked pistons which is epidemic with the D4Dead. Dec 31, 2010 · I have a 04 LLY that has developed the ocacianal rough idle in gear with puffs of smoke. 0 with about 230k miles) back from some repairs, and I’m now getting a stall on start/rough idle condition. Ball seat erosion, nozzle erosion, and solenoid coil winding shorting are possible causes of these symptoms. Again, only does it in Automatic high idle! Sep 6, 2009 · Hey guys I've recently begun having idle problems and loss of fuel mileage with my truck. As part of maintenance, the idle speed should be adjusted at 5,000 miles, then at 30,000 miles, 60,000 miles, etc. Fourby4diesel Note:The rough idle Oct 31, 2016 · When in the rough idling state, I don't really notice any loss in power. I don't know if your engine has that but it may be a pointer for you to investigate. the rail itself should have about 5K at idle, 12-16K normal Nov 11, 2021 · When does engine rough idle occur? • Hot – operating temperature • Cold • After high speed operation • Over entire engine speed range • Combination of the above conditions • Is there chassis vibration or any other conditions/observations present when engine idles rough. I have read everything I can about the RPM lag (or hang) on 5. 5L V8 turbo diesel engine has an idle speed control screw on the left side of the injection pump (see Figure 1-10). Changed filter and codes went away. Unlike traditional fuel injection systems, common rail injectors store fuel in a common rail or reservoir, allowing for more accurate and Aug 21, 2018 · I've noticed on mine that at at idle & when warm, that there is a "slight" hunting of the engine. This article provides a comprehensive guide to understanding and managing diesel fuel injector problems. Jun 1, 2021 · I have a 2018 RAM of 155k miles. Common Causes of Diesel Fuel Injector Failure. These injectors are responsible for delivering precise amounts of fuel to the engine cylinders at high pressure. A faulty common rail diesel injector can cause a wide range of issues, including: Check engine light; Rough idle; Engine knock; Engine surge; Engine misfire; Fuel leakage; Poor fuel economy; Increased emissions; To pinpoint the exact cause and perform a thorough diagnosis, it is crucial to follow a systematic approach and use the correct A diesel engine running rough when accelerating or during its warm-up phase due to several factors. Take the oil fill cap off with the truck running to check for excessive blowby to rule out a bad cylinder. Clean Air filter. The center hole has to remain totally clean. 7L Cummins, and I wonder if I can get some advice. Truck ran normally after injector replacement fixed rough idle. Genuine Bosch remans 1000 miles ago. Issue is abnormal black smoke when accelerating and stutter, also idles rough and stutters when reving in park and will blow black smoke when reving in park as well. On an 03 common rail 5. Kind of new to the diesel engines so I don't know if standpipes might be an issue or may there is an HPO leak. Aug 8, 2015 · 1st of all get any diesel still in the system behind the canister filter under the hood completly out. it didnt gradually go to high idle like normal. Later when we picked it up last week, we came to find out that it still has the same exact rough idle problem which the dealer nor any other tech cannot figure Jun 4, 2023 · I have an issue where it on idle sometimes stutters "diesel knocks" for 2-3 seconds and goes back to normal. If left unresolved, a rough engine idle can lead to poor gas milage, starting issues, and even major engine problems. The majority of diesels on the road are common rail (HDI, CDI, TDCI, and so on). Jun 12, 2022 · Our Duramax L5P has 19,000 miles on it now, mostly pulling our 5th wheel trailer. Dec 3, 2011 · So since I bought this truck it had a rough idle at times. I have replaced the Rail pressure Regulator and pressure sensor, cleaned common rail and pipes. Starts fine and idles fine but when you go to take off it has no power and rpm's won't build. Also, a fast idle solenoid in the same location controls engine speed during warm-up. Its as rough as old boots to a point that the whole car shudders. maybe a 100-200 but you can certainly hear it through the sound of exhaust Oct 12, 2015 · Rough idle and rail pressure out of consistent control. No smoke of any color coming out of the exhaust, no codes in the dash. They were also clean. The reason I did this was at first I had a bad fuel rattle at idle and the FRPV was leaking fuel even at idle, so I knew my rail pressures were jacked way too high. Another common cause of rough idle is a bad flywheel or bad camshaft. BH Jun 16, 2013 · Erratic idle and occasional loss of power on acceleration G'day everyone, I have a Navara 2008 D22 DX with a YD25 (2. Still rough idle. Then returns to 350. It is an intermittent problem and when the truck runs bad the fuel economy follows suit. Sep 23, 2010 · Drove home from Houston, Tx to Jersey Shore, PA with out issue. 3 is much quicker to rev-up and return to idle RPM. Additional Rough Idle Causes. Jul 25, 2011 · You can re-torque your connecting tubes on a long shot. Apr 27, 2012 · No rough idle, did this again in park, rough idle. A few times going down a hill it wouldn't even accelerate past 60 with my foot to the floor. If I let the engine cool off (wait a couple of hours) before starting up again, rough idle is gone. I was NOT in the mood to dump $2500 in injectors so I tried the ATF for three Jun 2, 2014 · 2000 Dakota R/t 5. Re: Rough idle Reply #4: October 26, 2022, 12:12:28 I had the same on an old focus diesel, it would start fine but in the winter would take a second or so to fire, it had 4 faulty plugs and a blown glow plug fuse, it still idled lovely though, I did end up replacing everything. awesome forum. If I turn off the engine and start it back up hot, rough idle is still there. This is textbook injectors trying to stick and fail. I mean, rough idling, white smoking worse than ever. Then it will clear up and go again. I would check your grid heater and grid heater relay. As a result, the engine speed can increase up to max speed (unloaded). . Sep 17, 2024 · Common rail injectors play a crucial role in the efficient operation of diesel engines. Dec 30, 2016 · So I have a 2005 Dodge. Here's a link to someone's solution that turned out to be simple and should be worth a look: LB7 idle problem, please help!! Video inside!! - Diesel Place : Chevrolet and GMC Diesel Truck Forums Jan 27, 2020 · Hi, my 04 f250 here lately has been idling pretty rough at times when at a stop light or stopped for periods of time. Sep 2, 2017 · I have an 07 dodge with the 5. There has to be something wrong here: Idle speed needs adjusting; Loose or faulty distributor cap; Dirty fuel filter; MAF (Mass Air Flow Nov 26, 2012 · Everything I have read so far indicates that the Common-rail trucks do not have 3 cyl idle mode. Oct 7, 2021 · Hello, guys; sorry I haven't been on lately. 7 Swapped, HP Tuners, Valair 3850 DD, BW s369sxe, Dual Cp3, 170% injectors, Air dog 150, Arp studs, fire ringed, HD push rods, 103lb valve springs Rail pressure its very close to expected value, but moving up and down all time. 9 diesel i have very low rail pressure, the cp3 and fuel pump have Aug 5, 2014 · It all has to do with map pressure, rail pressure, apps, and computed torque at the time you let off. Aug 1, 2009 · It's a bit odd actually as I've noticed most other <2. I've replaced ICP, IPR, and had the FICM bulletproofed and tuned. I learnt a great deal from the forums and wanted to share my experiences with this engine. Still rough and lower power under load with black smoke on heavy acceleration that was not common before, but no codes. Diesel fuel quality is important, so avoid the cheap stuff, and avoid using truck diesel in light common rail engines. No codes or anything are presented. Dec 6, 2016 · Check rail pressure (unfortunately not while the rough idle happens) New lift pump (old one made a weird noise anyway so it was due to replace) No codes via smarty Turn off smarty (issue still there with or without it) Today I noticed the voltmeter fluctuating ever so slightly from 15-14. Sep 21, 2015 · I think the general consensus is that ATF is a more "abrasive", for lack of a better term, cleaner than diesel kleen, etc. Some early common rails had an over fueling problem due to inadequate fuel filtration and could burn a cylinder up, and rough idle is an early sign. No mil light What I found when he dropped the Jan 24, 2019 · With your common-rail diesel, you may experience Smoke; Power loss; Rough idle; Engine rattle; Dirty diesel engine oil; Oil use; EGR valve problems, and inlet system deposits. They’re termed common rail because they have a common rail (similar to petrol injection) that supplies diesel to the injectors (see picture). Installed a 2 micron filter and Baldwin water separator 1000 miles before that. Jan 25, 2014 · Now to the point, I just bought an '03 Common Rail with approx. I got code "high pressure common rail check - Answered by a verified Dodge Mechanic Last week we looked at the mechanical make-up of the common rail diesel fuel injection systems that have revolutionised diesel-powered cars (see Common Rail Diesel Engine Management, Part 1). Air dog holds a constant 19PSI to the CP3 during this. My truck had gotten the rough idle for 5-10 seconds on startup that would then smooth out. at idle it bounces around 4100-4300 and under acceleration will go over 20k. Nov 25, 2016 · Anyway, FPR's are mentioned a lot in "rough idle" posts, even though no DTC's are set. 12. this post has then put on here before but not for a long time my truck is in 04 Duramax lb 7having problems with it running black smoke rough idle and rough shaking I've just replaced valve covers rebuilt the front axle and rear hubs. it ran fine for a year and over 10000 miles, went to use it this last weekend and the water in fuel light was going on and off intermittently and didn't think anything of it, filled it up at faststrip and on the way back it sorry this isnt a how to video. Thanks n advance. 5d is not a direct injection or common rail unit. Starts to idle rough when shifting to drive, its a cummins. MAP and SCV Common rail diesel (CRD) systems operate in a world of extremes, with almost unimaginable capabilities. However, over time the idle speed can become out of tune, resulting in rough idling, stalling, or even excess fuel consumption. 50 on all injectors. But it will occasionally fail on its face and sputter around and smoke. Only other issue has been water pump leak/replacement. So i hit the brake pedal and it went to idle and ran normal. If the above suggestions don’t fix the problem, try these out. Jun 11, 2024 · Diesel engines are known for their durability, torque, and fuel efficiency. Jun 24, 2019 · A faulty FCA can cause a variety of issues, from rough idle, low power, a deviation from desired rail pressure, and even a no-start condition. 10 Gears, Viper Fan, 180* T-Stat, Hooker Shorty Headers, Flowmaster 50 Dumped, Lowered 2/5 with Nitro Drop Shocks, CalTracs, Boss 330's, Nitto 420s tires, Shaved Tailgate, Grant Kustoms Weld-in Rollpan. I towed about 6k with it across country (all my stuff in an enclosed car hauler) and at times it had a lack of power. I havent noticed any other side effect yet. Feb 24, 2013 · No problems, no idle issues. 9 - 155,000 miles Dec 7, 2016 · Have you had any luck with this? I have the exact same problem. 9l HO (600 series) I have run some stanadyne in it and no help. Sep 8, 2023 · Worn piston rings can cause oil to seep into the combustion chamber, leading to poor combustion and a rough idle. It would not idle without dying quickly and I could not keep it running with gas (diesel) pedal. Have a 2011 Vito that will idle all day long. The "Programmer and Box" market has really ruined the ability to go out and buy a reliable problem free late model diesel truck. A few weeks ago it started. Then lost power. Afterwards i checked the idle and the problem came back. Did not seem to help. 5l common rail turbo diesel) engine. 7, 4x4 - stock 05 - 2500 QCSB, SLT, 4x4, NV5600, 3. Hot or cold start didn't matter. I drove it to the store an put in a can of diesel kleen and drove the truck up and down the highway for 30 miles flooring it and stopping to idle it. Jan 16, 2010 · crank the truck up and i have a slight rough idle. Well at one red light the truck idled rough ( kinda like an engine with a big loping cam) but as soon as I started driving it was fine. Excessive idling in suburban traffic can adversely affect your vehicle, contributing to deposit build up problems in your combustion chamber and diesel filter. stantheman1 Posted August 1, 2009 Jul 19, 2013 · I am experiencing rough idling for the first 5-10 minutes of the engine running. 5k to less than 4k when it is happening. Serviced regularly, driving great and getting 34 mpg. but fine after its warmed up. Jun 25, 2018 · Many things can dump diesel in the crankcase-- bad injectors is the most common, but leaky fuel lines, even a bad CP3 pump can do it also. 5K or so. kill test. Any answer would be appreciated, Thanks. I bought it in February of 2021; it runs great no smoke starts good, but when it's idling, it sounds like it has a dead hole, and the engine shakes more than it seems like it should. Anyone else gone thru the same problem? Truck has been awesome up until this point. 5 psi , rail pressure thats impossible if engine is cranking /running more then 150 rpm can read how CR fuel system operates at FAQs (3) Frequently Asked Questions | Dodge Cummins Diesel Forum (cumminsforum. or so to return from a high RPM to idle due to high rail pressure bleeding off. then make sure ur stock lift pump is working. I know they mentioned they take in a lot of diesel injectors from all over the shop for repair as well as taking in the whole car to look at. ONE time I noticed my fuel pressure gauge fluctuate from 14psi to 13psi and then back up to 14 when the problem appeared but it's usually the rail pressure. Any ideas on where to start???? I have 98. It has been running without any issuesuntil now. Is the difference between the actual and desired fuel rail pressure within the specified value? 290 psi ( 2MPa) Go to Step 7 Go to “Fuel System Check” in May 4, 2011 · This could also fix a rough idle if the rough idle is caused by timing that is off or has retarded over the life of the timing belt. This knock is the same as you guys have,it used to drive me nuts. -> What I have done so far. I have 16. 9 cummins"2005" idle is a little rough. 9 Cummins turbo diesel?This video outlines a possible solution for this issue if it presents in you Jul 10, 2018 · I have an FASS 165 GPH air and water filtration system on the truck and I have already replaced the FCA. Does it cold and hot and doesnt matter with weather, maybe a slight bit worse if its warm outside. The truck will start fine and easy, but idles rough/surges but the rpms remain constant and normal. Jun 17, 2020 · I'm helping my brother in law fix his 04 Cummins, truck is stock minus exhaust and intake, smarty (not installed). I have changed the filter, sensor on the rail and sensor on the CP3 pump. When it does that rail pressure goes from 350 000hpa to 400-450 000hpa. Most all common rail injection systems do the exact same thing, power stroke, dura max, cummins. I'm new to common rails, so I'm not sure if it normal or not. after it warms up it idles alot better. Jul 1, 2012 · New to the forum and in need of help. Feb 26, 2010 · I just purchased a 2006 Dodge Diesel 4x4 6spd and when I recieved the truck it has a miss at idle. 2012 T5. Feb 10, 2024 · Power loss, rough idle, and engine shaking are common issues. Diesel Services Ltd of Milton Keynes. 5 or whatever the stock gauge reads. It feels like there is a miss in the engine and there is a change in the exhaust note at idle. It’s a pretty common failure, and luckily a new FCA is very easy to install on a Cummins, and it’s also affordable at a hundred and thirty bucks. Checked fuel filter and found it was quite dirty. Any foreign speck of dirt goes directly into the high pressure CP3 than to the injectors. 2L 4cyl run rough idle when in gear/drive or any gear other than neutral or park. But a grid heater shouldn’t even be turning on above 65°. 0 tdi Bought the van six weeks ago. running down the road should be 4-6psi, at wide open throttle as long as you have some pressure your ok. what is the allowable spec at idle ? will to low of a rail presure cause a mis fire? the smoke tells me it exess fuel will Oct 2, 2013 · '06 F250 4x4 - 5" Flo Pro exhaust, SB Filter intake, Accufab elbow, Edge Evolution (monitoring only), SCT w/ ID custom tune, FASS 195 pump, Gillette Diesel EGR cooler delete, Sinister Diesel coolant filter, ELC coolant, updated turbo drain tube/oil feed line/STC fitting/oil cooler, ARPs w/OEM HGs, Elite coolant lines, ITP RR fuel system, RCD 175/30 injectors, KC Turbos Stage 2, FICM. VCDS is showing no faults, and the issue doesn't appear to happen each time the car is started from cold making it hard to troubleshoot and diagnose. Suddenly last week (when the weather got really cold) the rough idle and misfire while driving started. Any ideas on what to look for or where I should start for diagnosing it? So I just got my truck (2006 6. Codes said misfire on 2 and 3. If you don’t follow these practices, then you will drastically reduce the lifespan of your injectors and end up spending thousands of dollars on a new set. If your chugging white smoke and rough idle and smell raw diesel in your exhaust your overfueling and it will burn a piston very quickly. Feb 3, 2008 · 2 days after i had started swapping sensors the dreaded rough idle problem came back, intermittently. This is during a cold start; temperatures are around 30-40 degrees Fahrenheit first thing in the morning. I have an 02 5. No problems driving while cold. And staring down $300 a pop is a challenge. 73's, 6. Started to sound like a misfire. 0 CR TDI (Engine code CBBB). I have not heard a common-rail truck do this before, the last one we had did not idle like this. 2) A stuck MPROP (FPR) can cause excessive rail pressure. We sold our house and had to be out in 7 days, and then this happened! My truck was making like a spark knock sound for 4-5 days, so I ran some fuel injector cleaner thought maybe they were dirty. One thing i found to make the noise less is the 2 cycle super tech oil in the fuel,it runs much smoother. Then remove and have all the injectors tested on a true HPCR test machine. Mar 1, 2016 · I replaced the vp44 with a remanufactured one from thoroughbred diesel and upgraded fass fuel pump in the stock location. 9 common rails and found that it is normal for it to take 3 sec. Your title is pretty much a description for bad injectors on these trucks. And a somewhat long crank imo. idle you should see 8-10psi off the lift pump. as soon as u have the stock lift pump working again or a fass installed fill tank with fresh Common rail direct fuel injection systems operate under high pressure and at high temperatures, which can lead to costly problems if left undetected. They need clean and high-quality diesel fuel with proper lubrication to run well. If the above don't clear the problem, have the shop run cyl contribution test, surprised they didn't do it when they ran the cyl. After the truck runs for a while it smoothes out quite a bit and has no white smoke at idle, but runs rough when put in drive and sitting at a light, and even more when put in reverse and holding the brake. W. The systems used extremely high fuel pressure, electronically controlled injectors and complex exhaust aftertreatment to provide very high specific torque Apr 24, 2022 · The 6. Nov 28, 2024 · I have a 2007 5. Common rail direct fuel injection systems operate under high pressure and at high temperatures, which can lead to costly problems if left undetected. Problem was with the shift selector switch on the transmission, prone to corrosion. 9 Turbo Diesel with 52K miles on it. Feb 19, 2015 · developed a really rough idle Nov 2018 Replaced DRV (RHS of rail, cost £95, genuine bosch part) which fixed the idle problem, van drove perfectly but after a few weeks I noticed it would go into limp mode over 3000rpm and I would get the fault code p0087 rail/system pressure too low Dec 26, 2015 · 1) Open or poor connections at the MPROP (FPR) connector-pigtail or main engine harness connector will cause loss of pressure control, maximum rail pressure at idle. Jan 5, 2017 · Hi all, I've got what seems to be a similar rough idle issue. New FCA at the same time. ect. 9 Club Cab: SRT-4 Seats, K&N FIPK, Holley 52mm Throttle Body, Superchips 3715, 4. Dec 1, 2020 · Rough idle / stuttering; Severe loss of power; Once the pump fails you’ll have a lack of fuel flow which may result in the engine stalling. then whenever i drive down the road it does fine in traffic, when it gets up to 60 mph and stay at that speed 4 to 5 mins then it starts missing real bad and then blue smoke starts coming out of the tailpipe eventually it will get so bad it will want to Dec 23, 2014 · We need rail pressures at cold crank, warm idle and hot 2000 rpm flat freeway cruise in OD. My dads common rail had a hard start issue, as in it took 10 seconds of cranking before it would start but it would idle fine. Jun 12, 2007 · My 2005 LLY recently started exhibiting a problem: very intermittent, very rough idle. See the FAQ for more on these separate topics. POSSIBLE CAUSES INJECTOR DTC’S PRESENT OTHER DTC’S CAMSHAFT SENSOR (K53) SIGNAL CIRCUIT OPEN (K72E) 5-VOLT SUPPLY CIRCUIT OPEN (K55) RETURN CIRCUIT OPEN (K53) SIGNAL CIRCUIT SHORTED TO Feb 9, 2010 · Get a Smarty and turn rail pressure to 4, did that and it was loping alright, but I heard it was rough on the injectors, even with after market 50+ injectors Me: '06 4x4 2500 QCSB 5. I would have thought this is very unusual for a common rail diesel engine. Then while i was fueling up, it gradually went into high idle again but it started loping and fluctuating in rpms alot. Shut off the truck and restart it and it will idle fine and the RP will be the normal 4. When found on Audi Common Rail V6, V8 and V12 TDI engines, please see Technical Product Information (TPI) 2020693. The motor sounded very "airy" and as if it was about to stall out. Looking at the Tacho u can also see the slight change in RPM. Allow 2-3 seconds between each 200 RPM increment to allow the rail pressure to stabilize. Feb 9, 2015 · Hi RUK42, I have the same or a very similar problem with my 2007 Rodeo common rail diesel, 120000Ks. Dec 6, 2010 · The last few days I've been noticing the engine idles a bit rough on cold start. Diesel fuel injectors are subject to harsh operating conditions, which can lead to several common causes of failure. I checked the truck for codes and monitered the fuel rail presures. As soon as I touch the throttle and it returns to an idle it will run rough to the point it stops. Jan 28, 2017 · Did you put anything in the filter before screwing it on. Jun 18, 2012 · Sometimes after driving and coming to a halt it will begin to have a rough idle and my rail pressure can be anywhere between 2. Maybe 3-4 seconds. Some won’t let the system run dry, stopping the engine before it runs out of fuel. guys, here's the rundown. I pulled into the parking lot of the restaurant and it was really running rough but still drivable. unless it's accompanied by bad noises and poor performance. Seemed like it was only running on 3-4 cylinders w/a real bad miss. Sep 28, 2023 · When the speed is set higher, the idle speed control range is left. I have a 2005 Terracan 2. Oregon Fuel Injection Ave Eugene, OR 97402 541-485-1434 12/1/14 https://oregonfuelinjection. 9. Aug 8, 2021 · I need some help with diagnosis for a suddenly rough idle and running 300,000km NS 3. Do you have an irregular idle on your 3rd Gen Dodge RAM 5. but in this video i show you my symptoms like slow start and rough idle. 9 Cummins are a finicky bunch. These issues must be addressed immediately to prevent further damage and optimize engine performance. has 250k miles. Noticed when in neutral or park when desired fuel psi is stable unit does not shake or stumble but when in gear actual fuel rail psi fluctuates. it seems to come and go throughout the day; I have also ordered a Rail pressure sensor (Bosch, £35, left hand side of common rail) to change that at the same time, but havent got the right tool to change it yet so I havent swapped them. Feb 27, 2006 · The PCM adjusts the idle speed thru the IAC and adjusts ignition timing. 2 diesel. if you go to press the accelerator after its warmed up a little, it Customer: having issues with an Isuzu NPR-HDIsuzu 4HK1 5. doesnt move the rpm tach alot. hope this helps! Jun 8, 2010 · Turns out that was not the problem and it still has the rough idle. com Nov 30, 2011 · My 07 5. Car is a 2009 8P3 2. Nov 18, 2023 · My buddy recently purchased a 2014 6. I pulled it all apart again, and this time, I also removed the crossover tubes to inspect/clean them. It doesn't smoke at idle, doesn't have any issues starting. Adjust idle speed adjuster by turning knob counterclockwise, approx. Record the values. The knock appears to be only on one cylinder and persists while ever the engine is running but magically disappears if I stop and restart after 20 minutes or so and it mightn't return again for days or weeks. When driving there is no issue whatsoever. See full list on onestopwheel. 172K miles about 2 weeks ago. Last week we looked at the mechanical make-up of the common rail diesel fuel injection systems that have revolutionised diesel-powered cars (see Common Rail Diesel Engine Management, Part 1). Truck has 420,000 miles I’ve owned it for 30,000 of those and it’s been good just started doing this recently. Nov 19, 2011 · Hi, having trouble with my 5. The niggling problem is the idle when stationary or coming to a stop. Sep 2, 2011 · If someone is buying their first diesel and it's a common rail, they really need to take someone with them who has some knowledge of the likely problems of these engines. For example, during its service life, a typical fuel injector on a commercial vehicle will open and close more than a billion times, and the pressure in the fuel injection chamber can be as high as 2050 bar (29,732 psi)! 2006 Dodge Ram Mega Cab 2500 5. and then what i did to correct them. Operating conditions… If you do a lot of short Sep 3, 2011 · My rail pressure is usually at 5k at idle and when the problem appears it will go to 4k back to 5k with slight rough idle. Idle mode (engine at operating temp) is a Closed Loop mode (PCM monitors the O2 sensor(s) and makes adjustments accordingly). 9 has knocked since i have owned it,its been a year now and i have put over 20k on it. It seems any time the fuel system is opened at all it will need some charging of the lines and Jan 1, 2013 · We are wrapping up a 24Valve common rail. 16 - 2500 CCSB ST 6. com) injector fuel line cap to mechanically stop fuel from going to a possible leaking injector which could effect common rail psi. I will try to Apr 6, 2015 · Came home and it sat for about 1 1/2 hours and then I went out to eat and it started just fine. com FICM w Dec 31, 2019 · FIG3- A common strategy to deliverer fuel to the diesel engine combustion chamber was to time the injector delivery with a diesel fuel injection pump (or distributor). Replaced injectors 2 and 3. actual fuel pressure psi goes below the recommended 1450psi range. Jan 12, 2023 · 45kPa = 6. Rough idle can be caused by bad engine mount-- exhaust contacting the frame, bad injector, or weak cylinder compression. Took off last night w/the family and got about 2 miles down the road when the truck suddenly lost power. 3) Bad suction valves in the high pressure pump can cause rail pressure to be excessive. The DRV has been replaced on all three and all are fine after driving for awhile and getting feedback. The FCA change resolved the fuel rattle issue and the leaking FRPV. 112 turn idle travel should be available until idle speed increases. Especially in the morning with white smoke when first started. I offer a tool that makes it very easy to incre When warm It seems to make a loud diesel clank noise and then after a bit a dull clank noise almost sounds like a petrol and then back again, its really strange. Then killed the truck not thinking anything of it at first, came back to start it and got WAY worse. Hi all. May 1, 2017 · The other noticeable difference while driving is the throttle response; the 7. The engine runs fine most of the time. At first I just though that it is normal as the bakkie is cold and the 2. Since about 10,000 miles I have noticed a small lope in the idle, which progressed to what I would call a slight miss in what felt like one cylinder. So I get back to Michigan, cold weather hits and it won't start. The PCM adjusts air-fuel ratio by varying injector pulse width and adjusts idle speed thru the IAC. I have decided Jul 28, 2021 · Attempted to start again and it was acting like it was fuel starved but I had good fuel pressure (15 psi), while rail pressure was fluctuating between 4-8K psi when running. Mar 1, 2010 · I have 2006 5. I noticed no difference in power or fuel economy while pulling Jan 21, 2013 · O. Firstly, here's a list of most of the usual common rail diesel problems: Smoke; Power loss; Rough idle; Engine rattle; Dirty diesel engine oil; Oil use; EGR valve problems; Inlet system deposits; Turbocharger failures; Excessive diesel particulate filter regenerations; Next, you need to understand what causes these common rail diesel problems Jan 24, 2009 · I have a 2007 ram 2500 cummins 5. Mar 23, 2022 · 2008 Toyota land cruiser Prado LC 120 diesel 1KDFTV diagnostic readings before changing injectors at 180 odd thousand Klms. Otherwise potentially injector/ cp3 problem. com While a rough idle may seem like just a minor annoyance, it’s actually an indicator that there’s something wrong in your engine. Firstly, here’s a list of most of the usual common rail diesel problems: Smoke; Power loss; Rough idle; Engine rattle; Dirty diesel engine oil; Oil use; EGR valve problems; Inlet system deposits; Turbocharger failures; Excessive diesel particulate filter regenerations May 11, 2011 · I've read a lot of rough idle threads but none sounding much like mine. sprinkles08. And when I say "rough" I mean REAL rough - bucking bronco style (the whole truck shook very hard). Mar 14, 2012 · have an 06 cummins with a rough idle truck has no trouble starting no codes had injector drop test performed and all dropped the same smoothes out when driving or at 1000+ rpms looking at the engine at idle the truck shakes more than the engine can hear a slight knocking coming from bottom towards back of engine but changes pitch when pushing in the clutch was told truck has a dual Jan 17, 2011 · The truck may have an injector sticking open would potenially give you rough idle and fuel knock. One small detail is that, If I will be driving over 100km/h on a highway for more than 30 minutes and then I will have to come to a stop, getting the engine to accelerate again seems hard, as when I try to accelerate, the car gives a feeling like it is blocked Feb 26, 2013 · Idk if this is the proper area to post this, I'm having some confusion with the layout. Set idle speed by means of adjusting screw (arrow), if required. I also came back from Gibb RR recently and car has been very well shaken of late. When I started it to go home, it started real rough and shook and sputters and blows black smoke Jan 7, 2006 · You start the truck, step on the gas until the idle is smooth (usuall about 900rpms) and then tighten the idle lock. Nov 7, 2010 · When i started my truck this mourning(25 degrees outside) it jumped straight to high idle. Apr 28, 2012 · 07 5. pfmyrc owzow qqusnyn dvpa fxfwntre iwntby nqchixp zhfouz eatikwx lxcw