Lml duramax crank no start

Ran the scanner/computer, it shows that the def system or dpf is very clogged, also checked the pressure when idling and cranking, it is supposed to be at 5,000 psi while idling but it is pulling 3,060 psi, need help asap, truck has been down for 4 weeks going on 5 weeks. 2016 Chevrolet Duramax LML 6.6 Liter. Save Share.

Possible someone shimmed the valve and lost parts-- COMMON. Pull the "U" hose from the fuel rail-- plug the hose. Connect a hose to the nipple on the fuel rail. Crank the engine--- any fuel coming out of the fuel rail nipple -- the FPRV is leaking fuel-- IT WILL NEVER START.Next day change fuel filter message and no start. Replaced the filter head and filter primed the system like crazy still no start. Its building like 6k psi of fuel pressure no smoke or fuel smell at all from exhaust. It does have a code for stabilitrak but it has always been there. I have checked for the chafed wiring etc and have not found any ...Both brake lights dont work when the pedal was pushed. Service trailer brake system, stabilitrak, and parking assist messages come up. The truck ran fine last week after I changed out the tensioner. There was no problem. I had changed out the idlers and belt a month before with no problems after. So far I've checked the batteries with a 100 amp ...Happened for maybe 2 seconds and then went away and everything was fine. 1. Shift inhibited shift to n to reset. 2. Service traction control service stabilitrak. 3. Service trailer brake system. Then last week headed down the highway about 65mph, lost all engine power, no codes. No crank/no start.Sep 12, 2014 · Pull each injector return line one at a time and crank. If there is more then just a small spit coming from an injector, its returning too much. Usually when an injector is bad it will be a steady stream of fuel coming from the top of the injector fuel return. Originally Posted by brokensmokin. Came back, turned it off, tried to restart. It cranked, fired, ran for about 3 seconds then back to no crank/no start. Tried to disconnect the BCM again and pulled the fuse for 20 minutes but no luck. Battery was still good, and I was able to run the starter by jumping the starter relay, but no starting.Jun 19, 2014 · 2011 lml runs w starter fluid but won't crank without it h&s mini max 3" straight pipe 175,000 miles Got the truck at auction, said it was a run and drive…. ya about that, it cranks with stater fluid, and yes iv read all the no no on that. I drove it home from jackson ms, to memphis TN. Changed fuel filter and still no start.

2013 duramax lmlCrank no start Code p128e reduced power and fuel filter changeReplaced fuel filter And new exergy fpr on cp4 No metal shavings found Truck started ran for a couple miles and shutoffEnded up doing the cp3 50state conversion Got the truck to start ran fine started couple times Let it sit couple hours laters crank no startRemoved return line from check valve added shop air cranked ...First of all let me say that I have only had this problem when I park my truck in the driveway, which is uphill, and go out to start it in the morning. I get in the truck, warm up the GPs, and then crank it up. Once it turns over it runs fine for about 5 seconds and then dies, in a way that seems like a fuel issue, like its out of diesel.LML won't start. My truck just rolled 62,000 miles on the way home from the boat ramp today. It's been virtually a trouble-free 62,000 miles to-date. :gearjamin. After I got the boat washed-up, I hopped-in the truck to back the boat into the garage. Cranked her just like usual, but might have let-go of the key just a slight-fraction of a second ...Remove the hypertech and try starting. Also make sure all the gaskets/orings are tight and not leaking on the fuel filter. Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. Once fuel is present then re tighten valve and start truck. 2012 F150 Lariat w/Ecoboost.787 posts · Joined 2011. #5 · Jul 4, 2013. I experienced the same problem. It turned-out to be a faulty "Water in Fuel" sensor, that was leaking fuel, and allowing air into the line. Present: 2015 K2500HD LTZ Crew Cab Z-71. My Chevy Truck History: 2011 K2500HD LTZ Crew Cab LML.Lml crank no start. 2015 Duramax, we just have done a def and dpf delete put all together and uploaded the efi live tune as the tuner manufacturer says to. Crank no start. It will fire a few times but the just continue turning over with the starter. The cold side intake tube just before the butterfly is wet with what smells like fuel.2015 lml duramax will not start after replacing the CP4, FRP sensor, and the FPRV. install a fuel pump at the filter, - Answered by a verified GM Mechanic ... 08 lmm Duramax crank no start builds rail pressure as it should 5.8kpa while cranking CPS and ckps both put of signal when checking with snap on scanner fresh fuel filter ...

No indication on the truck at all. 2011 GMC 2500 HD. First ever diesel and loving it. Air Dog Lift pump. mine actually thru a code 'Po522'. found a GM tsb on it stating 'it can be this or that, but at this time GM has no fix for it'.And mine stayed at 0 psi last night for at least an hour and now is back to 0 psi.MTL_Dmax said: Use a section of 5/8" hose and bypass the EGR cooler to see if it clears up some of the smoke. Update - cooling system held pressure for almost 2 days with no leaks. Bypassed EGR cooler (only the coolant) and reassembled. Truck seems to start and run normal now.#1. Looking for some input. I’m troubleshooting my 2015 lml, died on the side of the road low rail pressure P128e and the change fuel filter message. The system was …Check your filter. If there is air in it and you can't prime it with the pump on the housing, you can either rebuild or replace the housing. Loosen the bleeder valve, pump the pump. It's easier if you pull off some of the intake tubing. If you don't ever start pumping fuel the pump/housing is probably sucking air.Possible someone shimmed the valve and lost parts-- COMMON. Pull the "U" hose from the fuel rail-- plug the hose. Connect a hose to the nipple on the fuel rail. Crank the engine--- any fuel coming out of the fuel rail nipple -- the FPRV is leaking fuel-- IT WILL NEVER START.11-16 LML Duramax Powertrain LML Cold start question ... The problem is when it is under 10 degrees Fahrenheit it does not always start the first try and sometimes it turns over and runs for a second then dies. So I crank it a second time and half the time it starts no problem and sometimes it starts but it does not sound kosher, but then after ...

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I am having the same issue, but I did not remove my ECM. I can crank the engine I will get 145psi to 1400psi of fuel pressure. My snap on scanner is saying desired fuel pressure is 4350psi with key on, not cranking. I have been working on this truck fir two weeks now. I have no codes abs no start. 2015 Chevy 3500 Duramax.My lml broke a crank shaft last Saturday night. Truck is all stock except for lift, tires and steering upgrades. 115k miles. Currently just a little short on cash and time. So I figured my best bet maybe to just pull the engine and replace it with a used complete engine. Or pull the engine slap in a new crank and put it back in.5 posts · Joined 2013. #3 · Apr 25, 2013. The truck acts fine when it's running, drives fine with plenty of power, just won't fire after it reaches operation temp. No smoke either. I'm about to go to the dealer and check on it, ill post what I find out, thanks guys! 2011 Duramax LTZ -STOCK-. 2002 Z28 Camaro -TSP 408-TH400-91mm-9in-.first of all check for this wire rub and see how bad yours has worn through. its on the side that lays agains the ac compressor hard line joint. If thats not it then I would make sure the primer ball is hard and try to start it. Get someone to prime it as you try and start.John6363. 4927 posts · Joined 2013. #3 · Feb 1, 2016. Try Disconnecting the batteries and on the driver side hold both terminal wires together for 1 minute. That will restart the system. 06 RCLB 4x4 (The OG Farm Truck) EFI live, Built trans, 30% sticks, 68mm stg2r, Tons of supporting mods. Died 11/15/2019.

Well I've got a 2012 lml at work with a broken crank. Waiting to hear back from GM if the ecm calibrations are valid. ... Start date May 8, 2013; Forums. Duramax 6.6 Technical. Duramax Hard Parts. LMM . 1; 2; 3; Next. 1 of 3 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can ...When I release the key everything comes back. I get service 4x4, service stabilitrak, service traction control. No illuminated DTCs. But when I use the autocal it pulls up a few codes. Which I will attach in a picture. I pulled every fuse (there were a few blown) but this didn't help. Does anyone have an idea where to start?Have a 2016 LML will not start. Drove fine and shut it off and now will not crank. Just hear a click. Some background: Truck is stock with 140000kms. Had a slow crank/start issue for the last little while which I knew was a bad battery. Tired to boost it and still wont crank. Replaced both batteries and checked relays. No change.Filter heads are very common issue. But agree with chevytech77. Would probably try to find out if the issue is sensitive to fuel level. If it isn't, would go the filter head route. If it is fuel level sensitive would go the pickup from the tank route. 2014 Chevy 2500. Tuned and deleted. 33×12.5×20 fuel mavericks.Hooked up bluetooth scanner and read codes P128E & P0088 (high fuel rail pressure) reset the codes and took it for a ride. Seemed fine, but when I stood on the gas it wouldn't go over about 2900 RPM then check engine light with reduced power mode, and change fuel filter message. Swapped out the filter and took it for a ride with scantool hooked ...Won't start after battery disconnected. I have a 2006 GMC5500 6.6L Duramax with a Regency hauler body, air ride and air seats. A month ago I drove it to a friend's garage for the winter (used to haul a race car trailer). Parked, turned off, noticed left side air pump still running. Couldn't determine what fuse governs that (owner's manual ...Service Bulletin Bulletin No.: 16-NA-102 Date: August, 2019 TECHNICAL Subject: Duramax Diesel Hard Start, No Start, DTCs P0087, P0088, P0191, P128E or Injection Pump Replacement Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Chevrolet Express 2010 2016 Diesel (RPOs LML or LGH) Silverado 2500/3500 GMC Savana Sierra 2500/35002015 Chevy 2500HD CCSB LTZ Z71 LML, WCFab S475/Stock with 3" Hot Side Pipe, WCFab CP3 Conversion with Exergy 10mm CP3, Flo-Pro 5" Dual Exhaust, PPEI EFILive Tuning, Airdog II 4G 165, Beans Sump, Edge Insight CTS2, Cognito PISK, 2" Drop Shackles, 305/45/22 Terra Grappler G2s on 22x10 2 Peice Mavericks.11-16 LML Duramax Powertrain LGH no crank no start question. Jump to Latest ... its been doing a no crank no start that eventually starts with sweet words, repeated key turns and patience. have been using it for local driving after returning (about 2-3 months now) from a big trip this year (think NC to NM to Wa to Az to NC) wherein zero no ...Start the pump and note down the reading of the pressure. Look at the manufacturer's guide to see if the pressure is low or high. In case of low pressure, take effective measures to locate the cause. If the pressure is sufficient, perform a fuel volume test to determine the exact amount of pressure. 4.LMM no start/no crank. Truck is a 2008 LMM, EFI live/5 switch, full exhaust, and an intake. Approx. 95,000 miles. No prior issues. Drove it to work a week ago and parked it. Came back after 8 hour shift and turned the key. Lights on dash illuminated but truck did not turn over or make any noise.Sewing Machine Components - Sewing machine parts are a mass of gears, cams, cranks and belts, all driven by a single electric motor. Learn about sewing machine parts like the feed ...

LB7 Crank no start. ... 2015 Chevy Silverado 2500 HD 6.6L LML. Save Share. Like. N. ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!

Remove the egr valve. U don't not need to remove alot.of stuff. Remove the hose coming off the pressure regulator number 2 and plug it off on the return hose side. Put the other end into a container and crank the engine. …Has this ever happened to you? You hop in your car, turn the key, and all you hear is the sound of the engine cranking, but it just won’t start. It can be frustrating and confusing...The bulk of most no-start conditions on an LB7 have to do with the fuel system, some with the starting system, and occasionally there will be trouble caused by other sensors like the camshaft position sensor, crankshaft position sensor, fuel injection control module, a faulty ECM, and more. Likely if there is an issue with any of those systems ...Pull each injector return line one at a time and crank. If there is more then just a small spit coming from an injector, its returning too much. Usually when an injector is bad it will be a steady stream of fuel coming from the top of the injector fuel return. Originally Posted by brokensmokin.Truck: 2011 lml duramax, fully deleted (block off plates), running efi live stage 1, Cat filter adapter, S&B intake. Problem: When the weather starts to turn cold and I’m only talking about 30 degrees Fahrenheit (so not that cold) my truck will either take multiple cranks to start or won’t start at all. While cranking i have white smoke ...If you're experiencing a hard start or no start, or are getting the following trouble codes; P0087, P0088, P0191, or P128E, a pump failure could be the problem. ... 1--LML Duramax CP4 pump housing damage after catastrophic failure. 2--Internal inspection of a failed LML CP4 pump reveals significant contamination.2011 duramax lml won't crank. Hey guys, I have a 2011 chevy 3500 drw with duramax lml that will not crank much less start. History: I recently hit a deer and had to replace all cooling systems in the front of my truck ( radiator, transcooler, intercooler, a/c condenser) along with both airbags and seatbelts. No wires were cut or damaged in the ...

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Let's start with the transmission. Not a Duramax motor but it is a Duramax-related problem. The Allison 1000 has been attached to the Duramax from 2001 to 2019. ... Make sure not to crank the engine until you bleed all the air out of the system. Be careful not to overheat the starter when doing this. 2006 Duramax Starts But Will Not Stay Running.LML wont start after D. 2015 LML and did a D for the dpf and egr. Downloaded the tune from a reputable tuner and cannot get truck running. It ran 1 time for 5 seconds then died. It just cranks and other times it clicks like a dead battery but both batteries are at 80%. I am stuck here no idea why it won't start or even crank sometimes.I have a 2011 LML, the crankshaft broke and I had a reman shortblock installed. The truck is compound turboed, cp3 conversion, fass lift pump etc...as the title says, it will crank but will not start. The following trouble codes won't go away. P2295 Fuel Pressure Regulator 2 Ctrl Circ Low and P0193 Fuel Rail Pressure Sens Volt Too High.Jul 8, 2017 ... Come along with Eric O. at the SMA shop as we have a look at this 2004 Chevy 3500HD with the Duramax Diesel that is a no start, no crank.787 posts · Joined 2011. #5 · Jul 4, 2013. I experienced the same problem. It turned-out to be a faulty "Water in Fuel" sensor, that was leaking fuel, and allowing air into the line. Present: 2015 K2500HD LTZ Crew Cab Z-71. My Chevy Truck History: 2011 K2500HD LTZ Crew Cab LML.2011 duramax lml won't crank. Hey guys, I have a 2011 chevy 3500 drw with duramax lml that will not crank much less start. History: I recently hit a deer and had to replace all cooling systems in the front of my truck ( radiator, transcooler, intercooler, a/c condenser) along with both airbags and seatbelts. No wires were cut or damaged in the ...Start the pump and note down the reading of the pressure. Look at the manufacturer's guide to see if the pressure is low or high. In case of low pressure, take effective measures to locate the cause. If the pressure is sufficient, perform a fuel volume test to determine the exact amount of pressure. 4.Happened for maybe 2 seconds and then went away and everything was fine. 1. Shift inhibited shift to n to reset. 2. Service traction control service stabilitrak. 3. Service trailer brake system. Then last week headed down the highway about 65mph, lost all engine power, no codes. No crank/no start.If not most likely fuel pressure related. You could be losing psi because of severe items, The Cp4 has a regulator, one on the fuel rails, and the return system. Also, being a common rail system if any injector is hanging open. Hopefully the Cp4 is not failing, which is very common for all LML's that don't have an aftermarket lift pump ...Knocking continued with foot applied on brake pedal and in drive/reverse 1200-1600 rpm “knock” “knock”, cylinder cut out test found sound coming from #6 cylinder. Replaced #6 fuel injector. Same issue “knocking” under low RPM. Two days later, Removed engine and disassembled completely to find no issues to Pistons, crank, rods, Heads ...If it sounds normal then you're probably looking at a sending unit issue, or loose wire from sender. If oil pressure is really that low you would know by sound of motor! 2008 Silverado K3500HD dually CCLB (LMM) 2005 Silverado K2500HD ECLB LT (LLY) (SOLD) 2003 Silverado 2500HD ECSB 6.0l/4L80e. 2000 Pontiac Grand Am GT. ….

Get ratings and reviews for the top 12 window companies in Peoria, AZ. Helping you find the best window companies for the job. Expert Advice On Improving Your Home All Projects Fea...In the wake of yesterday’s landmark ruling by Europe’s top court — striking down a flagship transatlantic data transfer framework called Privacy Shield, and cranking up the legal u...Crank, no start. Question, how are you getting good oil pressure, have fuel pressure? For 2006 and newer engines, at key ON and engine OFF, fuel rail pressure will be close to 0. If it is not, DTC P0191 may set. LB7, LLY, 01-04 At key ON, engine OFF, fuel rail pressure should be 1.1 to 1.8 MegaPascals (MPa), or 160 to 261 pounds per square inch ...Replaced the fuel filter, filled with fuel and no air bubbles this time when priming. Took about 3-4 seconds of cranking for it to start. Runs like a champ now. It appears I did not lube the o-rings on my previous fuel filter when installing it. I am assuming a week of it sitting allowed the pressure in the system to drop enough that the filter ...before Monday (but only for a week before) I had noticed every now and then cold or hot engine it took an extra second or two of cranking to get the truck to start. towed it to my trusted dealer (But not without my brother bragging about it) Injector pump out at 94k miles. some screen on the regulator was full of metal, which requires all lines ...Jun 8, 2020. #1. Looking for some input. I’m troubleshooting my 2015 lml, died on the side of the road low rail pressure P128e and the change fuel filter message. The system was loaded up with air so I made up an auxiliary tank to the inlet of the filter housing, primer pumps hard after 4-5 pushes. I wanted to bleed at the supply lines from ...8350 posts · Joined 2010. #7 · Nov 2, 2014. Using a test light, check the small wire on the starter for power when the key is turned to start. If it has signal from the key every time then the problem is the starter. If its not getting power when triggered it is before the starter and needs to be traced back. -Aaron- .This 15 duramax was towed in for a no crank condition. Network scan shows no com with the ECM and multiple modules log P0100-00 for no com with the ECM. I have load tested all powers and grounds to the ECM. There are 4 power wires in connector X1 at the computer and 5 grounds, 4 to X2 and 1 to X3. All good. The ECM turns on the power relay but not the MIL. Tested CAN signals and terminating…Have a savvy new year by squeezing out savings on food, fees and basic bills. Get top content in our free newsletter. Thousands benefit from our email every week. Join here. Mortga...143 posts · Joined 2022. #4 · Mar 9, 2022. I had the tcm go out on my lml. Flashing service stabilitrack and traction control on the display. Was followed with a P0700 code. Loss of power, stuck in gear, hard shifts especially going Into reverse. I believe a bad tcm can also cause a no crank aswell but not 100% sure on this. Lml duramax crank no start, Hooked up bluetooth scanner and read codes P128E & P0088 (high fuel rail pressure) reset the codes and took it for a ride. Seemed fine, but when I stood on the gas it wouldn't go over about 2900 RPM then check engine light with reduced power mode, and change fuel filter message. Swapped out the filter and took it for a ride with scantool hooked ..., 2003 lb7 crank no start. ... LML Duramax 6.6L Turbo Diesel w/ Allison 6 Speed Trans, Il6-I06 Audio System 8" Diagonal Color Touch W/Navigation & Intellilink, U42 Rear Entertainment System, Z82 Trailering Equipment Pkg, Z85 Heavy Duty Suspension, UY2 Camper/5th Wheel Trailer Wiring Provisions, Y65 Driver Alert Package, UD5 Front & Rear Park ..., Okay, so my symptoms were no crank, no start, no gear selector indicator (GSI) no blower motor, no VSS, total trans limp mode. After checking fuses, and pulling inner fenders and taking the tcm out and back probing and checking grounds. I checked fuses one more time. It was the clear top 30A fuse labelled “Blower”. How ridiculous is that, 8350 posts · Joined 2010. #7 · Nov 2, 2014. Using a test light, check the small wire on the starter for power when the key is turned to start. If it has signal from the key every time then the problem is the starter. If its not getting power when triggered it is before the starter and needs to be traced back. -Aaron- ., I have a 2016 LML that will crank, not start. It's been at a diesel repair shop 4 weeks and they can't figure it out. I was getting new tires put on and asked the place if they replaced fuel filters also. They replaced the fuel filter, I drove it 3 miles, next morning it would crank but not start. Had it towed back to them, they put a different ..., Remove any dirt from the fuel filter head and vent valve. 5. Locate the fuel filter vent valve on top of the fuel filter housing. Turn the valve screw counterclockwise several full turns to open. 6. Locate the fuel filter priming pump on top of the fuel filter housing. Push down and let it return up several times., Reviews. Description. Part# D333M81-CS. Callies Compstar crankshafts are a very popular upgrade amongst engine builds here at DHD. The Compstar Duramax crank is designed to be substantially stronger than the OE versions. This increase in strength centers around unique machining features, stronger steel material and a deeper nitride layer., 2011 lml duramax. The fuel pressure relief valve will not close all the way, so it will not build enough rail pressure - Answered by a verified GMC Mechanic ... 2011 lml duramax, crank no start. no codes. after cranking for a few seconds fuel rail pressure on the scanner shows 6,000-8,000 psi. ..., Yes it's very common for the wires to rub through at the bracket near the alternator. Unwrap the loom, and inspect the wires, repair wear and insulate the wires with old garden hose. Rewrap loom. A short in the system will cause alot of crazy things like this. -Aaron- ., Crank no start2011 lml duramax. fuel rail pressure at crank no start2011 lml duramax. fuel rail pressure at startup will barly reach 1500 psi but when started it runs just under 5000psi at idle and up to 26000 running down the road., How are Chris I have a 2015 duramax 2500 with a 6.6 LML and it cranks but no start and it's showing no fuel pressure the - Answered by a verified GMC Mechanic ... 2011 lml duramax, crank no start. no codes. after cranking for a few seconds fuel rail pressure on the scanner shows 6,000-8,000 psi. ..., When I release the key everything comes back. I get service 4x4, service stabilitrak, service traction control. No illuminated DTCs. But when I use the autocal it pulls up a few codes. Which I will attach in a picture. I pulled every fuse (there were a few blown) but this didn’t help. Does anyone have an idea where to start?, 64. Norco CA. www.mcratracing.com. Jun 20, 2009. #3. If you get the cam sensor and crank sensor wires swapped, it will not start. Try swapping and try again. But, yeah, those pressure readings sound wrong, but I don't remember what is normal reading when cranking. Thought it was 4,000psi, but not sure., To make a short story long. We bought a 2014 duramax with blown motor, with egr def delete. We bought a motor I was told it was a lml. Ended up being a lgh, out of a cab chassis 2013, everything matched up other then one egr plug. But being as egr is deleted it shouldn't be a huge deal, the truck cranks but won't fire up., Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain P0335 code, No Start ... and I found out that with the Edge unhooked there is No Start! Even before EFI was flashed into my truck. ... DTC P0335 means the ECM is not recognizing the crank signal. The voltage should be enough to get the sensor to kick out a signal., The counter is managed by the ECU, if the problem would be a bad cam sensor or reluctor, the value would be wrong but would not reset. Frank@AutoPro. Category: Chevy. Satisfied Customers: 7,655. Experience: Expert. Verified. Frank@AutoPro and 87 other Chevy Specialists are ready to help you. Ask your own question now., HELP! LMM Turn key won't crank!! 2007.5 LMM EFI Live DSP5 raptor pump exhaust. I drove the truck a week and half ago with no issues. Go out today it's 30 degrees turn key on wait for glow plug light then try to start. It doesn't click, crank, turn over or anything! I just filled the truck up with fuel and I notice the fuel level is on E and the ..., 4 posts · Joined 2017. #1 · Dec 9, 2017. I have a 2008 duramax, issue popped up when hauling a load. Hauled roughly 20k lbs through the mountains. Next morning the truck cranked no start twice, but the 3rd time it started. Hauled an empty trailer, 6k lbs, back across the mountains, the following day the truck cranked no start …, Put the bleeder screw back in. Pump the primer bulb until it gets so hard you have trouble pushing it down, then crack the bleeder screw open. Repeat the process until you get solid fuel and no air out of the bleeder. Doing it without the bleeder screw in makes it take longer and more effort. If it never gets all the air out, it may need a ..., D. DuramaxNoKaOi Discussion starter. 392 posts · Joined 2008. #7 · Feb 10, 2014. Hey John, FYI I found out the injectors NEED minimum 1500 PSI of rail pressure to open, at least the LML with piezo injectors do, and I'd bet the older ones do too. I've got plenty of tips and suggestions for making it as easy as possible., 687 posts · Joined 2016. #2 · Oct 5, 2018. After it has been run (warmed up), push the primer button until its firm, then see if it starts right up without excessive cranking. If it does start right up, its loosing prime. However, if it starts fine when cold, then prime would not be an issue. 2003 2500HD 6.6 duramax (LB7) all stock (no mods ..., Jul 21, 2022 · Jul 21, 2022. #1. I had a customer bring in a 2008 LMM a couple of weeks ago that wouldn't run. The story I got was he slung a belt that ripped the cam sensor wires. He took it to a local shop that found and repaired the wires. The truck ran for a day, but after that died and hasn't run since. When the truck got to me, I verified the wires were ... , Nov 16, 2016 · Remove the egr valve. U don't not need to remove alot.of stuff. Remove the hose coming off the pressure regulator number 2 and plug it off on the return hose side. Put the other end into a container and crank the engine. Really shouldn't be any fuel coming out of it. , 2015 Chevy 2500HD CCSB LTZ Z71 LML, WCFab S475/Stock with 3" Hot Side Pipe, WCFab CP3 Conversion with Exergy 10mm CP3, Flo-Pro 5" Dual Exhaust, PPEI EFILive Tuning, Airdog II 4G 165, Beans Sump, Edge Insight CTS2, Cognito PISK, 2" Drop Shackles, 305/45/22 Terra Grappler G2s on 22x10 2 Peice Mavericks., To me, it seems that it is only pulling power from one battery. When I turn the key to crank the engine, it just engages the starter to the flywheel and barely turns the engine over for a split second, and dies like it has no battery power. I can hook up jumpers to it, and it immediately cranks fine. I replaced both batteries with exide 800cca ..., The truck will fire up and run flawlessly after the new CP4 is installed, but when you turn it off, it won't start again. When cranking it will only build 1400 PSI of pressure. Any help is appreciated. Like. Sort by Oldest first. S. SouthFloridaGMC. 2565 posts · Joined 2014. #2 · Feb 18, 2017., Happened for maybe 2 seconds and then went away and everything was fine. 1. Shift inhibited shift to n to reset. 2. Service traction control service stabilitrak. 3. Service trailer brake system. Then last week headed down the highway about 65mph, lost all engine power, no codes. No crank/no start., 2013 duramax lmlCrank no start Code p128e reduced power and fuel filter changeReplaced fuel filter And new exergy fpr on cp4 No metal shavings found Truck started ran for a couple miles and shutoffEnded up doing the cp3 50state conversion Got the truck to start ran fine started couple times Let it sit couple hours laters crank no …, 2015 Chevy Silverado 2500HD 6.6L Duramax 4X4 CC, LB, Tuned w/DSP5 switch, Studded, EGR & DEF Delete, FASS. (Daily Driver) 1982 Chevy K30 6.2L Detroit Crew Cab, Long Bed Dually 6" Lift (Under Construction) Planning for 6.5L or a 6.2L with Turbo., 11-16 LML Duramax Powertrain 2001 LB7 no crank no start, ? ... and the truck will not crank or start, the starter relay clicks under the hood and the selonoid clicks on the starter, all connections are good, every accessory works on the truck , I also tried to start it in neutral I did run a diagnosis scan and found the following codes, o390 ..., LMM Duramax Crank, No start. Jump to Latest Follow 7K views 4 replies 2 participants last post by Ron Nielson Apr 7, 2022. S. santosjerry1 Discussion starter 4 posts · Joined 2022 Add to quote; Only show this user #1 · Apr 5, 2022. Hey guys so I have a 2008 3500 6.6 4x4 with 212k miles, dpf delete is the only mod. ..., long crank I have a 2003 LB7 with 75000mi. When it starts{sometimes it does not} it takes 5 or 6 seconds to start hot or cold. It runs great,no smoke,no fuel in oil.I have had the fuel filter housing rebuilt,a FASS fuel pump system installed,fuel pressure regulator and a glow plug module., Jan 16, 2022 · Remove any dirt from the fuel filter head and vent valve. 5. Locate the fuel filter vent valve on top of the fuel filter housing. Turn the valve screw counterclockwise several full turns to open. 6. Locate the fuel filter priming pump on top of the fuel filter housing. Push down and let it return up several times.