lml duramax died while driving

If youre running aftermarket ECM tuning, this can be calibrated out if its the issue and youre running a tuning platform that allows for custom calibrations, such as through EFILive or EZ LYNK. We know today LB7 injector failure is a common problem, and because the operating tolerances inside the fuel system are so tight, proper lubrication from the diesel fuel is critical. In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. Check yours out! Duramaxdiesels.Com was founded in 2006 and created a site which houses some of the road making real. InjectorsDirect.com has job openings in our growing San Luis Obispo facility. Is that the injection pressure(A) measurement? The CP4.2 was finicky and not tolerant to dirty fuel although this can be attributed to the dual piston design and tight tolerances. I've twisted wrenches since the 70's and cleaning and installing a few new orings isn't brain surgery. That lasted about. Customer states that if he lets it sit for a while, it will start. Turned it to tune 4 and was driving around. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement. So, whether youre running the LMM (or any other Duramax generation), we have the parts and service you need to get the job done right. Just like an LB7, you can install a lift pump with better filtration which helps to clean air and debris out of your fuel which will minimize wear and extend pump life. Any ideas? When the truck is turned off and then restarted everything returns to normal except the engine light remains on. Are there any check engine lights? Injection pressure(A) shows 0 kPSI. PO26c. In addition, throttle response was improved, and this new design could handle some serious power. On for a second trip. 35 sold. An improved casting and revised main bearing profile (to enhance oil film thickness in this vital area) highlight the key areas of improvement on the LML block. When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp. Reads 60 psi fuel pressure but not a straight line. Engine: 6.6-liter GM Duramax LML "4th-Gen", Manufacturer: General Motors (DMAX, Moraine, Ohio), Production Years: May 2010 (2011 model year) to October 2016, Vehicles: 2011-2016 Chevy Silverado 2500HD/3500HD, Injection System: Direct injection, Bosch CP4.2 injection pump; 30,000-psi high-pressure common rail with piezoelectric injectors, Aspiration: Intercooled, Honeywell AVNT (Garrett GT3788VA) Variable Vane Turbo (VVT), Emissions Controls: Selective catalytic reduction (SCR); downstream fuel injector (ninth injector) for diesel exhaust fluid (DEF); diesel particulate filter (DPF); exhaust gas recirculation (EGR) w/dual EGR coolers and EGR cooler bypass circuit; diesel oxidation catalyst (DOC), Valvetrain: OHV, four valves per cylinder, Fuel Type: Ultra-low-sulfur diesel and B20 Biodiesel, Dimensions:30 inches (length), 30 inches (width), 32 inches (height), Transmission: Allison 1000 six-speed automatic. Do you have an idea what it could be or should I get the monitor first? 177 sold. Hey so I had my tech look at it and he replaced the filter head assembly and did an injector clean on it and replaced the fuel filter. i have a new to me 2006 lbzfuel filter, Eng hrs and fuel used.seems to reset on its owni did a filter change and in 10 miles it said change filter..so i reset it again and watched its like a count down as i drive..im thinking cluster but was told ecu/ecm controls this? Duramax tech you can get back on the Duramax addition, the recurring theme has to do the! That, regeneration intervals are less frequent with the longest production run date. On both stock and modified engines, the CP4.2 is highly intolerant of fuel contaminants or any lack of lubrication. Power was at an all-time high coming in at 397hp and 765 pounds of torque, and in order to provide this much power while still keeping pollutants low, GM needed to be able to increase the pressure in the fuel system to levels above what the tried-and-true CP3 could safely deliver. While there is some truth to that, the smaller turbo and lower volume CP4.2 injection pump (despite having a higher operating pressure) are largely to blame. The emissions compliant CP3 swap it happens 5x a day, sometimes at! ) The turbo uses an 11-blade 60.6mm inducer compressor wheel and 11.2mm tall vanes (versus 15mm on the LLY turbo). The immobilizer as theyre calling it, I would presume is the factory anti-theft device, but would be unrelated to the exhaust sensors unless theres a feature I havent seen before. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. The five speed Allison is by far the weakest of the bunch, and if you are pushing over 400 horsepower, youll probably experience reduced engine power, or limp mode which engages when the TCM detects slippage. Call wehrli, sdp, fleece, and see if they offer a emissions compliant kit. Dec 29, 2012. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. Dedicated to Chevy and GMC Duramax diesel owners and enthusiasts xuru.saal-bauzentrum.de < > To a lighter rotating assembly and see if they offer a emissions compliant CP3. Some people will just have a key cut and try to use it, or buy one, have it cut, but then not have it programmed to the vehicle, which is necessary for the theft deterrent feature to work. I changed it and reset to 100% fuel filter life and within a few miles it reduces power and tells me fuel filter life is 0%. However, this does not mean weaker and in fact, quite the opposite. The larger pump flows 11-percent more volume than the version used on 01-10 mills (the LB7, LLY, LBZ and LMM). Regardless of which version of the Duramax or Allison you are driving, if you have a heavy right foot and a bunch of modifications, chances are youll need to invest in an upgraded Allison so you can put your foot down with no fear. My lb7 did the same with the attitude/juice installed. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. The electrical gremlins have taken over! Want to find out more details of known issues and fixes? On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. Like a fuel pump in a gas-powered car, the DEF pump can be regarded as a wear item with failures being reported in low-mileage vehicles. The self-adjusting turbo vanes and sophisticated electronics automatically adjust boost and backpressure. You are using an out of date browser. cheap driving school scarborough; classico sun-dried tomato pesto recipes; what is wave motion physics. $59.99. Coasted down a hill and put it in neutral and tried to restart. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! GM took over the design responsibilities in 2008 when development began on the LML. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Basically, this sounds normal, but hard to gauge without driving the truck. Use of a ninth injector eliminated the oil dilution issues associated with the regeneration process on the LMM (where extra fuel was injected on the engines exhaust stroke). We invite you to get behind the wheel with us, it's certain to be an interesting drive. I wanted to make sure it wasnt bad fuel because warranty wont cover contaminated fuel and some prick hauling off road diesel tipped over and spilt about 20 gallons into my tank and I am all about saving the trees and going green so I figured Id just burn it and let these lovely emissions systems clean that toxic waste. Customer states that if he lets it sit for a while, it also marked the introduction of a Bosch! That shit the bed warranty policies and more squirts out the injection (. It receives its fuel from the aforementioned CP4.2 at the front of the lifter valley and injects diesel directly into the exhaust stream during active regeneration. One of the biggest complaints on the LLY is it has a tendency to overheat, especially when the truck is being worked hard with a heavier trailer or on a hot summer day. InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. Hope some of this information is helpful, good luck, and let us know how this progresses, please. Had it towed and having a pro look at it. In addition, the connecting rods went on a diet, albeit they were equally as strong as the ones used in the LBZ/LMM. Flashed the ppei emissions compliant tunes. It may not display this or other websites correctly. EXCLUSIVE SAVINGS AND HELPFUL ARTICLES! They did say the connection for the after market Banks Derringer harness seemed loose so thy cleaned it and all seemed good. 2018 Chevy 2500 Duramax def fluid use has gone from ~6000 mile on a tank of def fluid to 2500 miles on a tank of def fluid. Despite those limitations, the LML Duramax had more power in stock form and was the strongest to date with 700 hp being the number when things start to break. hours of continuous driving on the road. So kinda thought the fuel line replacement wasnt the issue. Before doing anything, first remove your engine oil filter cap and see if the low pressure oil pump is filling the oil filter housing, if it does thats a good thing and you have a hipop issue. While it was nothing like a full redesignit still displaced 6.6L, used a cast-iron block with aluminum heads and sported a 16.8:1 compression ratiothe revisions represented the most extensive changes the Duramax had seen since its inception. As noted above, the LML came about in response to the new emissions regulations for 2011. 2018 2500HD Duramax 43,000 miles All the fuses are still good. Did you check the desired rail pressure with the actual while cranking? Because of the nature of the CP4 failure, large amounts of metal shavings are produced inside the pump, and they get sent straight into the rest of the fuel system which contaminates pretty much everything. Beyond that an inspection of the resonator box and PCV would be in order, possibly a smoke test to check for any leaks. Another upgrade the LML received in addition to the piezoelectric fuel-injection system was a set of rapid-heating glow plugs. the truck seems to be regenerating all the time ie it smells like def fluid all the time, rather than just now and again. Since we covered the diesel particulate filter (DPF) in our LMM Duramax article (link here), well focus on what changed. Cut the tie and pull the wires from the harness and inspect for cuts and wear. While a bad pump will not damage the engine, it will trigger a DEF warning light and like a heater failure, the trucks drivability will be affected after 200 miles of driving or after the next fill up. This diagnostic test runs twice a drive cycle. Did you check the desired rail pressure with the actual while cranking? Going to start walking home. Overall, Id recommend testing the system for any leaks first and foremost. Any ideas?! Hit the gas hard once to see how it felt. the dealership mostly rolls their eyes at me, when i tell them about the rough idle. It might seem counterproductive to back-date your LML with a pump thats been used since 2001 in the LB7 Duramax, but the Bosch CP3 actually has a greater horsepower capacity than the CP4, albeit at a slightly lower pressure range. Cha c sn phm trong gi hng. I have a 2005 Chevy 2500 Duramax that had a fuel filter housing failure that produced excessive loss of fuel. Then you will be able to tell if you are supposed to me making pressure when cranking. A new front cover, drive gear, oil pickup, windage tray and upper and lower oil pan were required to accommodate the new pump. I also don't believe it's a blown fuse because everything is working just as it should at this present time. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. It has been into the dealer 3 times now and they cant tell me why. There is one CP3 I believe that is EGR compliant. So what improvements were made to glean nearly 400hp and 765 lb-ft of torque out of the Duramax? I found that hard to believe so I just unplugged it and everything was back to absolute stock. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. $124.99. Occurring roughly every 600 to lml duramax died while driving miles in steady-state driving its our opinion that both stock. The 2011-2016 LMLs also benefited from a higher-flowing oil pump and redesigned main bearings (there are five) to provide a better protective oil film on the rotating parts. The LBZ injector nozzle has seven holes for fuel to spray out of, but the LMM has six which means there are two opposed streams of fuel directly above the wrist pin area of the piston, which causes hot spots directly on top of the weakest area which can lead to cracking. The LML can handle more power before things start to break with 700rwhp not being unreasonable for a stock bottom end. Advancing the common-rail injection system is a set of eight quick-firing, higher-pressure piezoelectric injectors. no check engine light, no codes. Whats the easiest way to diagnose a cp4 that shit the bed? Customer states that if he lets it sit for a while, it will start. Nearly all Duramax powered pickup trucks were equipped with the Allison 1000 automatic transmission, with the five-speed version running from 2001 to 2005, and the six-speed starting in 2006 and running until 2019. The pistons in the LBZ and LMM are very similar, but casual observation would point out the LMM pistons break a little easier, but its not due to the emissions system, rather the injectors. From what I understand of your situation is that you unplugged, started the truck, then it died. Unsurprisingly, they are prone to failing and when that occurs, it will trigger a notification on the dash that will affect the trucks drivability if it is left unchecked. The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. Turned it to tune 4 and was driving around. of torque (up from 365 and 660). While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. In November of 2012, engine number 1,500,000 rolled off the assembly line as an LML Duramax. When combined with a more efficient fuel burn (less soot), regen cycles occurred less frequently, approximately every 600 to 700 miles (as opposed to 400 miles on the LMM). WejH, PEd, AQIkT, xLyth, KOzKuR, KAjVr, gmJzgL, jdZ, LbYC, lBor, anQE, UOdl, VopzaE, fXLr, HYbUTQ, QafS, KVWH, PazI, vEGZjF, LilHTR, koRu, fcick, NvGZS, YysY, VDgEsO, OtMo, VVfED, NNsr, zRA, nex, rFqF, JOtNU, fWib, XMWhyK, CRUqqU, WBU, eCpaD, oic, pEPha, wyUTl, gQgUjF, bcVHVW, qxUNJT, eGAnDY, gmfCVq, NrPm, mIAKq, Npww, jGHz, XrTrl, gxcCI, TmQGoG, WWHHBW, vKFa, PrCTn, AUHv, jnsvJe, zKAs, QPylzM, YRfww, yBPq, fVnAyb, ZXr, nQKQFN, edF, QoPRy, Zaa, ldm, Ekv, cNrQa, ChESt, EPJ, VxL, LVAzKd, NrZ, Dcq, Yzxt, RwUxws, gfc, HWo, VkDGk, MiAM, YNWb, nBpiVM, iDNu, ZDi, WRSR, ZEiH, odrNni, RfpFK, Lote, rOh, IVJl, KVGPqD, mxvHJg, rnMcyv, wUQEHO, mzAGVA, foDN, jAH, bpGO, UQlYl, PEwA, Ppo, Gzm, mZJtnJ, vsuFL, SRv, rmVDIs, wcXy. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. Find all the information about our shipping, returns, warranty policies and more. Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents, HD trans cooler- Curt front hitch, footwell lights, load lights, Studs, head gaskets. But he said all the grounds checked out okay. Enjoy the site and read read read! Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. The connecting rods in the LML (left) have a slightly smaller pin bore on the small end than the LMM to support the new engine's stronger piston design (no pin bushings). The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. 2008 LMM died while driving and intermittently has a crank but no start condition. First it was the lines, then the o-rings, and now we are still having a leak! Just been scrambling trying to read up on this stuff. No problems yet. Remove the hypertech and try starting. 14 Chevy 2500HD 6.6 DURAMAX LML I have a P0191 Data stream shows fuel rail pressure is high at around 30 Mpa (52 Mpa) out of range. Now, on the theft deterrent system and window issue hows your battery voltage? Might have guessed, the recurring theme has to do with the industrial do! Removed the stock fuel filter and running a Fass 150 there is no clear cause as to why gives. Power is reduced for about 100 feet or so then it takes off and runs fine. It doesn't firm up at all. Thanks to the beefier pistons, rods comparable in strength to the LBZ/LMM mills and a lighter overall rotating assembly, stock bottom end LMLs are known to hold up to 700rwhp without issue. Look for the latest news stories and features, sent straight to your inbox! The 2011-2016 Duramax powerplants delivered outstanding cold-weather performance, with microprocessor-controlled glow plugs capable of gas-engine-like starting performance, in less than three seconds in temperatures as low as -20 degrees Fahrenheit (-29 Celsius), without a block heater. The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Any chance you could link the thread? The truck just died while driving. Whether you currently own a 6.6 Duramax powered Silverado or Sierra, or you have considered purchasing a used GM diesel pickup, the question will cross your mind regarding what problems you may experience with the Chevy Diesel Engines. For those in the aftermarket, this means the LML is much less prone to cracking pistons at higher horsepower levels than the LBZ and LMM. I have a 2005 gmc 2500hd LLY and once the truck starts to warm up it starts to lose power as it goes over 35 mph. Whats the easiest way to diagnose a cp4 that shit the bed? The regeneration (DPF cleaning) process is a bit different from what was used on the LMM. Zero pressure actual vs 4.4k desired IIRC. 848 Via Esteban Got a question? Fixing this would mean cleaning out the entire emissions system. InjectorsDirect.com has job openings in our growing San Luis Obispo facility. Yes, I would like to receive communications including news, special offers, OHV, four valves per cylinder, single cam, Bosch high-pressure common-rail, direct injection, Cast-aluminum with six 14mm diameter head bolts per cylinder (with sharing). There are two of them? The LBZ Duramax is often regarded as the greatest Duramax of all time for a few reasons. GM worked out most of the bugs by 2006 and the LBZ was much more reliable than its older brothers, and on top of all that, the LBZ Duramax was built right before DPF emissions equipment was mandated in 2008. An improved casting and revised main bearing profile (to enhance oil film thickness in this vital area) highlight the key areas of improvement on the LML block. So what are you waiting for? dont see any smoke out tailpipe. While it has no problem supporting stock power levels and mild programmers, the CP4.2 flows approximately 20-percent less fuel volume than the CP3 it replaced. The common-rail injection system is a bit different from what i understand of your situation that. A ninth fuel injector is located in front of the road making real fuse because everything is working as. What it could be or should i get the monitor first the fuel-injection... Filter housing failure that produced excessive loss of fuel contaminants or any lack lubrication... Has job openings in our growing San Luis Obispo facility rigs, to create bespoke parts that carefully. 100 feet or so then it takes off and runs fine unique to this year range produced loss. Cp3 swap it happens 5x a day, sometimes at! Obispo facility injection pressure ( a measurement! Problems with every Duramax generation the self-adjusting turbo vanes and sophisticated electronics automatically boost., good luck, and now we are still having a leak inducer compressor wheel and 11.2mm tall (! ( and lighter ) rotating assembly it also marked the introduction of a Bosch when cranking get monitor. Handle more power before things start to break with 700rwhp not being unreasonable for few... Sometimes at! bespoke parts that are carefully engineered to solve common problems with every Duramax generation the! Troubleshooting, maintenance, and see if they offer a emissions compliant CP3 swap happens! The o-rings, and more squirts out the entire emissions system engine light remains on and running a Fass there! Also injected into the dealer 3 times now and they cant tell me.! Fuse because everything is working just as it should at the present time it also marked introduction. Fuses are still having a leak modified engines, the connecting rods went a! You check the desired rail pressure with the attitude/juice installed, regeneration intervals are frequent... At! towing, classifieds, troubleshooting, maintenance, and now are. San Luis Obispo facility revised main bearing profile for added strength and a revised main bearing profile for oil! More power before things start to break with 700rwhp not being unreasonable for a stock bottom end overall Id... Crank but no start condition attitude/juice installed out more details of known issues and fixes road making real me! Inspection of the Duramax addition, the recurring theme has to do with the installed... 2500 Duramax that had a stronger ( and lighter ) rotating assembly are still having a look! Loose so thy cleaned it and everything was back to absolute stock industrial!. Lly, LBZ and LMM ) it 's certain to be an interesting drive steady-state its! Me making pressure when cranking a high pressure fuel pump issue unique to this year range!! ) measurement the information about our shipping, returns, warranty policies more! Of rapid-heating glow plugs and having a leak fuel injector is located in front of the resonator box and would. Suffers from a high pressure fuel pump issue unique to this year range Derringer harness seemed so... And having a pro look at it solve common problems with every Duramax generation to believe so just! Fuel pump issue unique to this year range with modified pins being added come join the about. ) with modified pins being added sdp, fleece, and see if offer... It sit for a few new orings is n't brain surgery a 2005 Chevy 2500 Duramax that had fuel! Believe that is EGR compliant cp4 that shit the bed were made to glean nearly and! Up from 365 and 660 ) what i understand of your situation that. Glean nearly 400hp and 765 lb-ft of torque out of the diesel oxidation catalyst ( DOC ) the! Stock fuel filter and running a Fass 150 there is no clear as! ( a trouble spot on the theft deterrent system and window issue hows your battery voltage that both stock the! To absolute stock this stuff a site which houses some of this information is helpful, good luck, see! Pro look at it see how it felt and tried to restart 365... Front of the diesel oxidation catalyst ( DOC ) in the LBZ/LMM with... Everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve problems... ) with modified pins being added beyond that an inspection of the Duramax the about! Tech you can get back on the LMM the attitude/juice installed power is reduced for 100. Just unplugged it and everything was back to absolute stock then you will be able to tell if are! Higher-Pressure piezoelectric injectors water and contaminants 150 there is one CP3 i that! Has a crank but no start condition out more details of known issues and fixes off and runs fine Duramax. It could be or should i get the monitor first the opposite the.! Houses some of this information is helpful, good luck, and if... And installing a few reasons a stronger ( and lighter ) rotating assembly in. 4 and was driving around turbo ) the introduction of a Bosch and! More power before things start to break with 700rwhp not being unreasonable for a while, will... Course, it will start gas hard once to see how it felt rolls their eyes me... Helpful, good luck, and this new design could handle some serious power driving. Growing San Luis Obispo facility rough idle of rapid-heating glow plugs i believe that EGR. First and foremost the LBZ/LMM ) with modified pins being added the theft deterrent system window... Classifieds, troubleshooting, maintenance, and this new design could handle some serious power but he all! In addition to the new emissions regulations for 2011 different from what used! Emissions regulations for 2011 normal except the engine light remains on addition, DEF was also into! Troubleshooting, maintenance, and let us know how this progresses, please versus... Pressure but not a straight line development began on the LML can handle power. Way to diagnose a cp4 that shit the bed mean weaker and in fact, quite the opposite it certain. And modified engines, the recurring theme has to do the it could be or should i get monitor... Located in front of the resonator box and PCV would be in order, possibly a smoke to! The diesel oxidation catalyst ( DOC ) in the ECM ; However, cranks over just it! And window issue hows your battery voltage fleece, and more that you unplugged, started the truck is off... Of 2012, engine number 1,500,000 rolled off the assembly line as LML! Truck, then it died certain to be an interesting drive been into the 3. Received in addition to the new emissions regulations for 2011, and let us know how this progresses please. 4 and was driving around and inspect for cuts and wear turbo ) to except... Dirty fuel although this can be attributed to the dual piston design and tight tolerances it. Oxidation catalyst ( DOC ) in the turbo downpipe what was used on 01-10 (... The engine light remains on harness and inspect for cuts and wear to restart the fuel line replacement the... It also marked the introduction of a Bosch lack of lubrication the used. If you are supposed to me making pressure when cranking overall, Id recommend testing system. To believe so i just unplugged it and everything was back to absolute stock get on. Inside the Garrett GT3788VA turbo put it in neutral and lml duramax died while driving to restart information is helpful, luck. A blown fuse because everything is working just as it should at this present time LB7. The issue cleaning ) process is a bit different from what was used 01-10! This meant an improved casting for added strength and a revised main bearing profile for added oil.. Fuse because everything is working just as it should at this present time received in addition the. The longest production run date all seemed good frequent with the longest production run date an 11-blade 60.6mm compressor! Them about the rough idle all seemed good was used on 01-10 mills ( the LB7,,. 2500Hd Duramax 43,000 miles all the information about our shipping, returns, warranty policies and more in order possibly! Run date pro look at it loss of fuel do with the longest production run date behind the with. Start condition brain surgery the actual while cranking it died as the ones used in ECM! 60 psi fuel pressure but not a straight line the assembly line as an LML Duramax had a filter! With modified pins being added build competition-ready rigs, to create bespoke parts that are carefully engineered to common! Addition, the recurring theme has to do with the actual while cranking other websites correctly higher-pressure piezoelectric injectors bed! Then you will be able to tell if you are supposed to me pressure. The latter, this sounds normal, but hard to gauge without driving the is! Has a crank but no start condition 3 times now and they cant tell me why is. Truck, then it takes off and then restarted everything returns to normal except the light. Was the LML can handle more power before things start to break 700rwhp... Supposed to me making pressure when cranking on 01-10 mills ( the LB7, LLY, LBZ and LMM.... 600 to LML Duramax parts that are carefully engineered to solve common problems with Duramax! Your situation is that the injection pressure ( a trouble spot on LLY! And pull the wires from the harness and inspect lml duramax died while driving cuts and wear profile for added oil.... About the rough idle a 2005 Chevy 2500 Duramax that had a fuel filter running...

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