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Duramax crank no start of Technology
D. Dmax04093 Discussion starter. 30 posts · Joined 2011. #1 · Jan 20, 2012. Hey guys I have a 2011 2500HD Durmax that I bought brand new and just hit 10,000 miles. Well I just had to have it towed to the Dealer because it wouldnt start needless to say I am not happy. I was on my way to work and I drove roughly 36miles and I stopped a ...My truck did not want to start buzzing sound before cranking. My 2008 LMM GMC Duramax has 106k on it and it did not want to start like it had no fuel in it even though it had half a tank, after several attempts. I opened the hood and pumped the primer above the fuel filter it felt a little spongy and gave it a long crank and it fired right up I ...Duramax. Discussion starter. 983 posts · Joined 2011. #1 · Jul 5, 2014. yesterday morning before work, truck cranked and would not start. recently my airdog 165 has been intermittently working and not working when I cycle the key. so about 2 days ago the air dog stopped working. it keeps popping the 20amp fuse on the main power. i cant prime ...2005 LLY 1550 FICM Code, crank no start. I am struggling with a 2005 Duramax LLY engine. The engine cranks but will not start. I have been getting this 1550 FICM IGN POWER code, but it is not always active. I have been looking through the forum and have checked my fuses and relays, inside the cab and outside. All seem OK.Reattatched inlet hose to rear of pump and primed diesel fuel manager to 10 p.s.i. Attempted to start vehicle. Vehicle cranks no start. Tech 2 indicates only 1.4 mpa fuel pressure in high pressure fuel rail. ( 10 mpa is minnimum for starting vehicle ) Removed 2 wire plug from fuel pressure control solenoid located on rear of fuel pump assembly.2002 Lb7 duramax crank no start. I have a 2002 lb7 duramax. I went out to start it and it will not start. It just cranks and cranks. Originally threw a p1550 code. "Low Voltage to Fuel Injection Control Module" it will not clear. I've replaced crankshaft position sensor. Fuel filter and batteries. I pulled connectors to the ficm.First I would like to say that crank start issues are very common on all vehicles but this 35-page thread is trying to focus on a specific issue that is plaguing 3.0 Duramax owners. This issue is commonly called "crank-no-start".About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The Duramax trucks do not have a fuel pump, so when you change the fuel filter, you have to re-prime the system by using the primer button on the Fuel filter housing. If you did not do that, you must have had to crank the engine a long time. It will not show leaks, because it is under negative pressure, not postive, like one with a pump in the ...113 posts · Joined 2014. #3 · Oct 29, 2018. Yeah probably lost prime. Open the bleeder screw on top of the filter house and push the primer until it squirts diesel out then close the screw. Still may take time to start but start there first before you start tearing in to the motor. 2007 2500 classic crew cab 4x4 lbz, 4in mbrp turbo back ...When cranking, the FICM has full control of the fuel injectors. The only input the FICM uses at this time is the engine speed signal from the ECM. The FICM monitors the signal along with the injection request signals from the ECM after the engine is running. If there is a problem with this signal, a DTC could set.This Duramax was towed in for a cranks no start condition. No Codes related to the issue. Fuel system had lost prime due to a leak on the suction line betwee...LB7 Crank and No Start When Hot. Hello everyone. I know this has been discussed many times, but I can't find my specific issue. Truck is a 03 LB7 with 260k on it. I do the fuel filter religiously every oil change because of these pesky injectors. I have also had to replace the passenger side bank of injectors in the last 10k miles.LMM Duramax Crank, No start. ... The picture shown is with key on engine off, however when I begin cranking, the number turns read and climbs from 0 and up every cam revolution it seems . Attachments. 7E7B0B80-E642-4DCF-A8EF-BF099DB2AD7A.png. 4 MB Views: 311. Save Share. Like. R. Ron Nielson.Crank no start-leaking fuel. I changed the injectors/glow plugs on 06 Duramax 3500 LBZ and now have crank no start and leaks fuel when cranking. Checked all High pressure & return lines and no leaks. Primed system several times and still no start. I suspect that fuel leak is preventing it from starting, but cannot find the leak.Jun 18, 2023 · Jun 18, 2023. #1. 2016 LML duramax, cp3 swapped (before rebuild all tuning is for cp3 swap), fass 165, installed Mahle performance pistons and rings, I’ve bled all the air you can possibly think. Maybe there’s more left. I’m between 430-450psi in all cylinders as well, did a manual compression test after completing the rebuild.Taking a nature walk in your backyard can be a peaceful and revealing way to relax. Check out 10 tips for taking a nature walk in your backyard. Advertisement It can be hard to kno...64 posts · Joined 2012. #1 · Nov 1, 2019. Heading down the highway and heard an engine rattle noise like a sputter dying sound. Pulled over, engine died and will not start. No trouble lights or codes come up on the scanner. Pumped up the fuel filter multi times and tried to start but no luck. 2014 dually, deleted 2 years ago without a problem ...2020 Duramax will not crank. My 2020 L5P with push button start will not crank. When I go to start it all the power goes out but then it doesn’t crank. The power then comes back on. This has happened in the past and I was able to resolve by putting the batteries on a charger. This time I charged the batteries and the issue did not resolve.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The first thing that indicates a possible bad starter is a car that does not start. If the car does not crank when the key is turned but makes a clicking sound, the lights need to ...Then you will bump the starter motor over leaving it in on position (even if it cranks itself for a while). Then the fuel pump once again should be buzzing for a few seconds, (it does this as the computer sees RPM and turns on the fuel pump (as commanded) whenever there is RPM). it is right on top of the fuel filter.Also check your CP3 Lines. You may have forgotten to tighten one. My truck wouldn't start because of this. Might be pushing fuel to the injectors but not holding enough pressure to start. Might could check rail pressure vs desired of you have an edge or scan tool. G.63 posts · Joined 2015. #2 · Feb 5, 2022. Double check your electrical connections, particularly the one that connects to the driver side fuel rail at the front of the engine, the fuel press regulator. When I did my hg, I had the same crank and no start. I had accidentally plugged in the wrong connector.Then you will bump the starter motor over leaving it in on position (even if it cranks itself for a while). Then the fuel pump once again should be buzzing for a few seconds, (it does this as the computer sees RPM and turns on the fuel pump (as commanded) whenever there is RPM). it is right on top of the fuel filter.2002 Lb7 duramax crank no start. I have a 2002 lb7 duramax. I went out to start it and it will not start. It just cranks and cranks. Originally threw a p1550 code. “Low Voltage to Fuel Injection Control Module” it will not clear. I’ve replaced crankshaft position sensor. Fuel filter and batteries. I pulled connectors to the ficm.Open the filter drain, if something, even pudding like goo comes out, you can add 911 to the tank and cycle the key with the drain open until you get some semblance of liquid fuel out of the drain. Shut the drain and then key on again, wait 5 mins, and the combo of the fuel with 911 and the filter heater may just get you going.02 chevy 3500 lb7 crank no start :/. so I got this 02 chevy 3500 dually with 6.6 lb7! cranks no start! replaced starter, has 2 new batteries, replaced fuel filter and housing, oil changed, crank shaft sensor, key relearned, using autel scanner it shows desired / actual fuel pressure 6k psi while cranking! disconnected fuel feed to cp3 to make ...When cranking, the FICM has full control of the fuel injectors. The only input the FICM uses at this time is the engine speed signal from the ECM. The FICM monitors the signal along with the injection request signals from the ECM after the engine is running. If there is a problem with this signal, a DTC could set.This Duramax was towed in for a cranks no start condition. No Codes related to the issue. Fuel system had lost prime due to a leak on the suction line betwee...3) Check for air in fuel system, install clears lines before and after the filter housing to check for air in the lines. 4) Confirm actual versus desired rail pressure, even under crank no start conditions. 5) If the above check good, then it …J. jim107r Discussion starter. 3 posts · Joined 2013. #1 · Jan 17, 2014. I have a 2004 GMC LB7, that I am not sure what to do next. It will crank and not start. I have replaced the fuel filter housing cause it was leaking, pumped it up and bled the system. monitored the fuel rail pressure while cranking and the command pressure is 50ml ...343 posts · Joined 2010. #1 · Jan 8, 2021. Looking for some guidance on crank no start without DTCs. our 2011 has a fass lift pump so I know its getting fuel to the CP4 but I don't know if that is doing anything. When cranking my DFRP does not seem to match actual. We tried replacing sensor on firewall side of driver side rail per some ...No crank, no start LB7. 2003 lb7 125,000 miles all stock no codes. Turn key and everything seems to work but will not turn over. come back a day or two later and fires right up and works fine for couple days/weeks. new nsbs switch , batteries and starter in last year. starter relay looked burnt so replaced couple months ago when it did same ...2012 will not start. ... Confirm actual versus desired rail pressure even under crank no start conditions, to confirm the starting issue is rail pressure related. If rail pressure matches desired, diagnose other codes that may be related to starting problems. ... 2011 Duramax LGH bone stock 265,000 and counting! Save Share. Like. 0 Reply ...After a decade of explosive growth, the company formerly known as Facebook is planning to freeze hiring and restructure some teams. After a decade of explosive growth, the company ...Last december installed a HSP compound turbo kit with a stainless diesel 5 blade S475 over stock. And a exergy 10mm cp3 conversion kit but still stock injectors and transmission. 5" flo-pro exhaust with no muffler and tuning is done with EZ Lynk by PPEI.It's been almost a month and about 3500 miles since the repair. So far, the shim seems to have done the trick for my truck and this issue. They did have to disassemble a few things on the engine but it wasn't overly invasive. Not like a complete cab-off repair. I still love the truck and am happy with my choice to get the Duramax.First and MOST IMPORTANT- UNPLUG THE GLOW PLUG AND INTAKE HEATER CONTROL CONNECTOR. Then take the air filter out, and with your helper, have them crank the engine. Spray only a 0.5 second spray into the housing, again only when cranking. See what happens. If nothing, try a 1 second spray, but no more.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. If there's lots then there's ur issue. Plus when it's running pressure regulator number 1 should be 30% to 40ish.2007.5 LMM no crank no start. I’m new to the group and I need HELP PLEASE!! I have a 2007.5 LMM that want crank and so far I’ve checked all fuses, replaced the starter, the positive battery cables to the starter, relays, the ignition switch, the ignition cylinder, bought new keys, and chased every ground this dang truck!LEGS News: This is the News-site for the company LEGS on Markets Insider Indices Commodities Currencies Stocks Oct 31, 2021 · Jumped solenoid. Cranks like crazy.2015 LML no crank no codes. I have a 2015 In 10 minutes exactly the SECURITY (lock) light w
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Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 06-07 LBZ & LLY Duramax Powertrain ... '06 LBZ No Start/No Crank. ... just for fun I thought I would start my truck, let it run for a few minutes and then try again. However, my truck would not start! Would not even turn over! All the lights and gauges come on just like normal but it wont crank over.2006 lbz 6.6 duramax. No start no crank. Key turns on all gages and the batterey gage fluctuates. Turning key further to start truck and get zero response. Tested batteries and both have about 12.8 volts turned lights on bright and both batteries read 12.3 volts. Within the past couple months I replaced the starter.60. Rancho Cucamonga. Jun 10, 2014. #1. Hey all, I got a buddy with an 04.5lly having a no start with this code. Truck runs a 50hp tow tune and is basically stock otherwise. He said it started having a high and low idle. then he shut it off. It sat overnight and will not restart now. I have had him check all his wiring from the ecm to the FICM.Feb 1, 2016 · #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. 06 ECLB 4x4.If you don't have a fuel supply issue, then you should be able to try to restrict return fuel from going back to the tank to see if the injectors are returning too much fuel. If that can be done AND it doesn't make any difference in your issue, then the injection pump is probably just too weak to build proper pressure. 2006 Silverado 2500 4x4.2015 LML no crank no codes. I have a 2015 LML that was working fine went into the store came back out and tried to start it and now it wont turn over the dash doesn't light up either. Some of the electronics work, cab lights, radio lights and door locks. I tried a new ecm as well and it is doing the same exact thing.Towing RV. Truck bogging down going up hills, usually does not do this. Stopped and got gas. About 30 miles down the road stopped off. When tried to restart will crank but not turn over-[START]. Changed fuel filter. No luck. Check engine light is on. Pulled fuel line, same, cranks but will not turn over[START]. Seems like it is not getting fuel.The geology terms channel defines the many processes and occurrences involved with the Earth.. Check out articles with geology terms here at HowStuffW Advertisement Geology terms h...I have a 2001 Chevy Lb7 duramax. Bone stock expect a 4 in mbrp straight exhaust. A couple of weeks ago I was driving home from college. A large poof of white smoke shot out. While pulling off the interstate the truck ran fine. I check the coolant level and smelt the dipstick for diesel.Aug 8, 2016 · 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 …1 post · Joined 2014. #5 · Jun 22, 2014. My 01 lb7 just did the same thing, would crank and crank but not start. And before it quit when it was idling the rpm's would slightly bounce up and down. Just finished installing a new fuel pressure regulator and it fired right up, idling smooth like it was new. Mine just rolled 200k as a work rig. Doyle.Aug 8, 2016 · 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 …4 posts · Joined 2018. #1 · Mar 1, 2018. Have a 2017 duramax 2500. Nothing but problems with it since new. Second set of injectors going in next week. Also out of the blue it will not start. Won't even crank over. No rhyme or reason about once every two weeks or so go out and turn key on seems normal but won't turn over.Blackdog3 Discussion starter. 315 posts · Joined 2009. #1 · Aug 14, 2017. Hey gang, I acquired for a 05/06 Chevy c5500 series bus. I am having an issue. It has no crank not start once you hit the key. Replaced the starter same issue, fuses look good. We did get it to start but by bumping the terminals on the starter with a screw driver.PIP5806A is for an extended crank or no start concern with a P0341 (CMP sensor dtc) set. This can be caused by a bent trigger wheel. If the wheel is bent, it should be replaced. ... 3.0 Duramax cranks but won't start . 2019 3500HD, Cclb, Drw, Deleted and Tuned, Wehrli turbo horn, intake, boost tubes, Banks idash, S&B map spacer, VSE fuel ...No crank, no start 2015 2500hd 6.0. Hello all, like many others, I'm fighting a no crank, no start issue. I had no gauges, and a bunch of MIL's. I replaced my ECM with a reman from flagship one, and got my gauges back, and all MIL's went away except "service 4wd". However, I still don't have power to post 85 on the starter relay when cranking.Attempt to start the engine, then release the key to ON, vehicle will not start. 3. Observe the SECURITY telltale. After approximately 10 minutes, the telltale will turn OFF. 4. Turn OFF the ignition, and wait 5 seconds. 5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes.2011 Chev 2500 LML 86k miles Deleted in 2015. Running great until last week.. went to start and all crank no start. no DIC errors. Here's what I've done so far: Research on this site lol. Added 5 gal of diesel to tank (even though I'm at 40% full on the gauge) Swapped my FASS fuel/water filters. Primed stock fuel filter before and during cranking.No Crank, No Start. Jump to Latest Follow ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 209.5K members Since 2005 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!188 posts · Joined 2012. #1 · Nov 5, 2013. Hey guys-. So yesterday the Duramax was totally dead. I kept getting code U0105, and the ECU fuse would blow every time I would turn the key. Cranks, no start. I isolated it to the wiring harness, and sure enough there was a spot where a metal bracket had worn through the wiring harness.I had some problems with my 03 LB7 about 3 months ago. It wouldn't start. I had previously got stuck in very deep water. Cleaned all the electrical connections and it strated. but it was doing the same thing it would crank and everything seemed fine but it wouldnt start. 2003 256,000 miles and counting Crew Cab Dually.No crank, no start LB7. 2003 lb7 125,000 miles all stock no codes. Turn key and everything seems to work but will not turn over. come back a day or two later and fires right up and works fine for couple days/weeks. new nsbs switch , batteries and starter in last year. starter relay looked burnt so replaced couple months ago when it did same ...When we reconnected and tried to start the truck there was nothing. If I use a power point on the relay or the supply side of the starter fuse it will crank but not start. There is no line under the P on the shift indicator. I tested the 9 and 69 pin on the TCM and there was continuity. Checked my wiring and I don't see any spots that might ...2002 Crank, no start. Help please! Hey everyone, I’m working on my 2002 LB7 and I can’t get it to start. Original problem was the fuel in water sensor cracking and leaking causing a loss of prime. Replaced that and reprimed it and the truck does not want to start. I’ve tried hitting it with some starting fluid ( sprayed a rag and placed ...10812 posts · Joined 2009. #2 · Apr 5, 2022. Your2015 lml crank no start low fuel pressure. Looking for
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63 posts · Joined 2015. #2 · Feb 5, 2022. Double check your electrical connections, particularly the one that connects to the driver side fuel rail at the front of the engine, the fuel press regulator. When I did my hg, I had the same crank and no start. I had accidentally plugged in the wrong connector.Jan 7, 2014 · LML no crank, no codes, ran fine yesterday. 2011 LML, 65k miles. Drove it to work and back yesterday with no problems. Parked overnight, plugged in, overnight low was only 30 degrees so not too cold. Tried to start it this morning, turn the key and nothing. Batteries are fine, I put a multimeter on while turning the key and they never budged ...Open the filter drain, if something, even pudding like goo comes out, you can add 911 to the tank and cycle the key with the drain open until you get some semblance of liquid fuel out of the drain. Shut the drain and then key on again, wait 5 mins, and the combo of the fuel with 911 and the filter heater may just get you going.Jun 18, 2023. #1. 2016 LML duramax, cp3 swapped (before rebuild all tuning is for cp3 swap), fass 165, installed Mahle performance pistons and rings, I’ve bled all the air you can possibly think. Maybe there’s more left. I’m between 430-450psi in all cylinders as well, did a manual compression test after completing the rebuild.The truck has not started since. Originally pulling the codes, it showed P0341 (cam pos sensor performace), and later showed crank pos sensor codes and glow plug codes, but only after numerous attempts to start. According to the scanner, it has no problems making fuel pressure- desired fp at 6k and actual builds to over 6k rapidly.Aug 22, 2014 · No crank, no start LB7. 2003 lb7 125,000 miles all stock no codes. Turn key and everything seems to work but will not turn over. come back a day or two later and fires right up and works fine for couple days/weeks. new nsbs switch , batteries and starter in last year. starter relay looked burnt so replaced couple months ago when it did same ...From the link I provided in post #2: No Start or Hard Start. Excessive fuel restriction, check or change fuel filter. Buy OEM Racor Replacement Fuel Filter. Use a vacuum gauge to check the suction side of the fuel system. You should have no more than 5 inches Hg at WOT (wide open throttle) or 7-8 inches Hg under load.2002 Lb7 duramax crank no start. I have a 2002 lb7 duramax. I went out to start it and it will not start. It just cranks and cranks. Originally threw a p1550 code. “Low Voltage to Fuel Injection Control Module” it will not clear. I’ve replaced crankshaft position sensor. Fuel filter and batteries. I pulled connectors to the ficm.When cranking, the FICM has full control of the fuel injectors. The only input the FICM uses at this time is the engine speed signal from the ECM. The FICM monitors the signal along with the injection request signals from the ECM after the engine is running. If there is a problem with this signal, a DTC could set.The fuel pressure regulator 2 outlet volume test must be performed while the no start condition is present or incorrect diagnosis may occur. Engine cranking for 15 seconds. Observe the volume of fuel from fuel pressure regulator 2. The volume of fuel should be less than 10 ml (0.4 oz).Our How-To Series rolls on. The boys tackle crank no-start this week. It's something many of us diesel owners have experienced, but how do you diagnose this?...19431 posts · Joined 2007. #5 · Jul 8, 2012. Replace and/or clean your coolant reservoir cap. Look up the youtube video changing a fuel filter on a Duramax, you want to follow the priming techniques. Basically open screw and pump until fuel comes out of hole. Then close screw and fire her up. If it loses prime then you have a leak, a common ...2015 LML no crank no codes. I have a 2015 LML that was working fine went into the store came back out and tried to start it and now it wont turn over the dash doesn't light up either. Some of the electronics work, cab lights, radio lights and door locks. I tried a new ecm as well and it is doing the same exact thing.engine crank but no start problem. So I had my first problem at about 40k miles. After a 45 mile commute I had to make a stop and when I got back in the truck to start it, it would crank but not fire. Battery was good and I could hear the fuel pump prime so ruled that out. I searched around the net for some leads but couldn't find anything ...This switch is located in the suction side of the fuel system and it may induce a crank no start, hard start, or an extended crank. Note: The Chevrolet Express and GMC Savana vans utilize a Fuel Conditioning Module with an electric priming pump. The filter minder switch will have to be inspected with the electric prime pump running. See more. 1.This is Why Your DuroMax Generator Won't Start. 1. Empty Fuel Tank. Don't overlook checking the fuel tank. You may have developed a fuel leak or the fuel gauge may be faulty causing you to run out of fuel before you thought you would. SOLUTION: Check for a fuel leak or fuel gauge failure. Fix or replace faulty parts.08 GMC SIERRA 2500HD NO START NO CRANK. ... The Duramax wire harness is known for lots of problems. Be sure to individually load test those batteries also . 1996 K3500 6.5L,( "F" Eng #141 cast block) NV4500, crewcab, dually,Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro Crossover, ...No crank. No start. I have a 2016 GMC 2500hd with the 6.0 engine. it cranked fine yesterday morning using the remote start. I drove it to work an when I got ready to leave work it wouldn't crank over at all. many help would be much appreciated !!!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. If there's lots then there's ur issue. Plus when it's running pressure regulator number 1 should be 30% to 40ish.More detail about your particular problem would be helpful. Here are a few things for you to check: cam sensor signal, crank sensor signal, the wiring of the mega fuse block - reports made that if improperly wired, truck will not start. Make sure all of your sensors are plugged into the correct place on the harness.The crank sensor in the Buick 3100 engine sits near the rear of the crankshaft pulley. One of its duties involves telling the computer when the No. 1 cylinder is at top dead center...Duramax First Generation: 2001-2004 (LB7) Lb7 crank but no start. Jump to Latest Follow 11K views ... I have a 2003 lb7 with fass lift pump and it would crank but not start. the lift pump was on. So I replaced the ficm after reading Thats a common problem, my truck started for about 10 seconds and quickly died to not be started again.2005 LLY bought the truck non running people I bought it from said it was starting on ether then one day wouldn't start no more just cranked and cranked, ran the codes comes up U0105 (No communication with FICM) pull FICM sent to SIA for rebuild they rebuilt it said it had bad capacitor load tested it was good to go installed crank crank crank nothing small shot of ether and it finally started.The key came on, things seemed normal, DRLs on etc, cranked fine, no security light, but it just wouldn't start. The only real telltale difference was the fuel gauge would remain on empty. The solution was to backfeed power into what GM called circuit 242 under the dash. It is a primary-ish power wire feeding the ignition from the underhood ...10812 posts · Joined 2009. #2 · Apr 5, 2022. Your MAF tells the ECM how much air is going into the engine. If incorrect output from the MAF, you will have problems. See if you can solve that one.You should have an output at idle of about 40 gm/sec when your EGR is closed. Don't worry about the glow plugs for now.I got in, and tried to start it with the key. No Start, No Crank, Nothing but 1 click (Tracked down to relay). I have done the following trying to fix the problem. 1) Yes it is showing in Park, however I did try to start it in Neutral. 2) Security Light DOES GO OUT. 3) Changed Relays/Checked all Fuses.2020 Duramax will not crank. My 2020 L5P with push button start will not crank. When I go to start it all the power goes out but then it doesn’t crank. The power then comes back on. This has happened in the past and I was able to resolve by putting the batteries on a charger. This time I charged the batteries and the issue did not resolve.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.Oct 9, 2015 · A. axeman Discussion starter. 4 posts · Joined 2015. #1 · Oct 9, 2015. Hello-I have 2007 GMC Sierra 2500hd 6.6l that will crank but not start. I have changed the fuel filter, bleed it and prime it multiple times. When I do prime it-it does get hard, and I have noticed that if I let it sit for 5 to 10 mins without doing anything-I do lose ... 2011 Chev 2500 LML 86k miles Deleted in 2015. Running gre