Details of the LML. By 2011, the Duramax lineup had already seen four major revisions, starting out with the LB7 in '01, moving to the LLY in '04½, the LBZ in '06 and the LMM in '07½. In 2011, federal emissions regulations had tightened, so additional measures had to be taken to keep the Duramax compliant, so the LML was the first to ...118 posts · Joined 2010. #1 · Apr 12, 2015. Alright guys I was having a problem with my lml, it had an h&s with 5" exhaust and got to where it would not start when it was warm and we determined the cp4 was failing. I went in and done a Wehrli cp3 conversion with IC pipes, EGR/DEF delete, AFE intake, Kory's tunes 150 fass and a sportsman cp3.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 ...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.Then wouldn't fire again, seemed like a broken wire as wiggling the sensor or removing it and reseating would work for a bit. Found that all 3 wires on the connector had the insulator cracked, ordered new connector and replaced. Still no fire, no codes. Checked the wires between the connector and the black connector above the drives side head ...replaced injectors,now will not start. ... Now go crank the starter with the line cracked open, then go back and pump the primer till it is hard, go back and try the starter for 5 seconds, pump the primer pump.....And repeat. ... 2003 Chevrolet 2500HD 6.6L Duramax - straight piped with 5 inch stacks, efi live w/ dsp 5 tuned by Idaho Rob :RockOn ...Last week my 2013 Silverado 2500HD duramax went into limp mode, while going about 65mph on the freeway. Warning message said "low power or reduced power" . Managed to make it onto the right shoulder. Limped about 30 feet in low power mode, then turned engine off. Engine would not turn back on.Has your car ever been in a situation where you turn the key, and it cranks but will not start? This can be a frustrating experience, leaving you stranded and wondering what could ...2011 silverdo 3500 lml crank no start Chevy Silverado's starting issue. Truck is getting fuel has a lift pump supplying - Answered by a verified Chevy Mechanic ... I've got a 2016 Duramax 6.6 LML. It's a crank, but no start. I try priming the fuel on the filter head, but it loses pressure after a few seconds.16 duramax diesel lml just replaced entire fuel system . Due to failed CP4 which blew metal into fuel system . Replaced rails injectors high pressure pump cleaned out lines and fuel tank. Now will not start only cranks . FRP is 145 psi . Desired is in the 6k psi.3833 posts · Joined 2007. #2 · Dec 24, 2012. rpm is read off the crank sensor. The cam sensor is only used as a reference for the ECM so it knows which cylinder is at TDC. I would take a look at the crank sensor as well. Remove the sensor and see if the reluctor wheel can be wiggled with a screw driver. 06 audi S4, V8/6spd.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 ...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.Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain ... Sellers sent me a warm-start video, which shows the same thing. As soon as the truck starts, the needle rises to ~110psi and stays there. ... No zone trans with ppe triple; delipped cut coated lb7 pistons, lbz rods;Keyed crank and cam, oil pump; Arp main studs, head bolts ...If the camshaft position sensor signal is interrupted while the engine is running the engine will operate normally. Circuit/System Verification. 1. Ignition ON. 2. Verify DTC P0641 is not set. ⇒ If the DTC is set. Refer to DTC P0641, P0651, P0697, P06A3, P06D2, or P06D6. ⇓ If the DTC is not set.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. Mechanic's Assistant: Have you noticed …Question: Will not having my radiator, core support, intercooler hooked up allow for the truck to crank but no start? All ground wires are hooked up, the two on the …2015 lml crank no start low fuel pressure. 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.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 ...LML No Start (Has Rail Pressure) I have a LML that will not start. Several days ago the truck died on me. I checked my Air Dog and found that the motor was locked up and not moving any fuel. After replacing the Air Dog motor I now have plenty of fuel flow to the engine. I confirmed this by putting the supply line in a bucket and watching the ...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 ...Lml stalling randomly at idle and while driving. My truck randomly shuts off at an idle and while driving. Sometimes it happens 5x a day, sometimes 1x, sometimes not at all. Gm Dealership put a brand new ECM in when it did it the first time. That lasted about 1200 miles, now it's doing it again. When it dies the service traction, service ...5257 posts · Joined 2009. #3 · Oct 19, 2020. P0340 is Camshaft Position Sensor Circuit. It will not set the same code for camshaft sensor error, that has its own set of codes for crankshaft errors. Basically it is not seeing a signal from the camshaft because its not seeing the completed circuit. Sensor or wiring issue most likely.This 2015 Chevrolet Silverado 2500HD 6.6 LML was towed in for a no crank condition. The customer reported the "Service Stabilitrack" message popped up on the...In 10 minutes exactly the SECURITY (lock) light will turn off. Try to start (it won't) Leave ignition on. In 10 minutes, the light will go out, and it will start up, and will "marry" the ECM to the BCM permanently. This will even work with locked "pre-programmed" ECM's so you can test them on other trucks.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.Another Starts, dies, no start. :confuzeld The first start today at 50 degrees outside, and the first time happening, the engine started normally and then shut right off. The 2011 LML engine cranked OK but wouldn't start again. No trouble codes. I checked fuses and tapped relays, and then planned for towing to the dealer.Feb 7, 2014 · If you got fresh fuel in the can, and the stock filter is in place, change the filter on the truck, pour 911 in the new filter and some in the 5 gallon container. Run the supply tube from the pump into the can and start priming the fuel through until you get a good stream. Close the bleeder pump til hard and try to start. Will only build 180psi of rail, has fuel everywhere it should have fuel. Even swapped the old regulator back in to see what was up. Same deal crank no start no fuel pressure. I have verified no flow out of the return line cranking on the #2 regulator, all the plugs in are in the correct spot. Also put air pressure to return of injectors while ...11-16 LML Duramax Powertrain. 2011 gmc sierra LML Denali No crank no Start Service Traction Control. Jump to Latest Follow ... New Batteries ran fine happened all of sudden No crank no start. Please help me. Save Share. Like. Sort by Oldest first6.6L Duramax LML Fuel Return Testing. This one stalled while driving, and will not build enough fuel pressure to be measured by the Fuel Pressure Sensor. The priming pump will build pressure, but the pressure quickly bleeds off. It pulls 2 inHg while cranking. No debris was found in a sample collected from the return line, at the connection to ...No communication with TCM. No communication with Glow Plug Control Module. P0113. P0090. P0098. Pulled every connector apart and put them in plastic bags with silica packets for 48 hours. Used WD40 and wire dryer on connections. Went to start truck and voltages were all over the place. Lights dimming and brightening repeatedly.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain No Crank, No Start, No Jump ... Just like the title says, my LLY won't crank, won't start and can't get it to jump. A little background first though: last week Wednesday I got ready for work and went to start it, not to cold (~25 degrees) and it wouldn't start so I plugged it ...05 crank no start. Jump to Latest ... LML Exhaust Manifold, PPE shimmed FPRV, Banks LBZ air cleaner, Profab intake, LBZ Turbo Mouthpiece, Kennedy twin lift pumps w/ megafilter, Corsa 304 SS Exhaust, Mike L tranny ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications ...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 ...474 posts · Joined 2017. #3 · Apr 10, 2017 (Edited) I'd say at least a full second longer than my LML. My LML would pretty much instantly start within less than a second of cranking when not freezing cold. I'll have to time them and see if there is really a significant difference or just seems like a long time to me.Piper One. 3737 posts · Joined 2021. #3 · Feb 5, 2022. P0088 is rail pressure high, the rest of your problems sound like starvation, which usually throws P0087. I played around with a high (ish) pressure lift pump on my LMM and it threw 0088's within minutes of turning on the pump.11-16 LML Duramax Powertrain 2011 Died - No Start. Jump ... Also it needs at least 1500psi to crank iirc . NIC R Too many damn trucks. Support the RPM act F#CK the epa. Save Share. Like. ... Will not start for the life of it . Save Share. Like. 0 Reply. SilverGorillaLML. 11326 ...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 ...18259 posts · Joined 2008. #3 · Jun 18, 2012. "Ain't Got no Pump"-- The Duramax uses the injection pump to pull fuel from the fuel tank-- so if you have a leak at the filter head, it will act like you describe. Check the vendors at the bottom and order a filter housing seal kit abt $25. Then takes 15 minuted to replace all the seals-- that ...I'm pretty sure that the answer is that GM makes parts common to multiple vehicles and the fuse box is one of them. Not every fuse is used in every truck that receives this fuse box. The gas engine models appear to have a fuel pump control and a fuel pump. The electrical manual - GM UPFITTER - Body Builder Manuals - does show a pin on the ECM ...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 ...2005 chevy 2500 duramax cranks but wont start,checked fuel filter by opening bleeder on top as soon as i pushed prime ball,fuel squited out.truck dont even try to start. Codes p0700,p1093 … read moresscamaro2485. 3142 posts · Joined 2015. #9 · Dec 29, 2021. Mine was loosing prime and would either stall or not start. I did 2 things to fix the problem. I rebuilt the primer on the fuel filter housing and replace the bleed screw on the filter housing. That fixed my problem. Someone makes a billet bleed screw.In this video I walk through diagnosing a P0087 trouble code on a 2006 GMC Duramax. Symptoms include hard start/no start, rolling idle, fuel pressure drop wi...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.A. amk. 32 posts · Joined 2013. #4 · May 4, 2014. make sure you flashed the right file theres the first one that comes up and with your truck name and I think you keep scrolling to the next one wathc real carefully the wording. In anycase I got efi live from atp on my lbz recently and its in limp mode for a ecm p0090 having to do with my fuel ...11-16 LML Duramax Powertrain. Random Long Crank. Jump to Latest Follow 9K ... Occasionally my truck will not start, unless you crank it for 30-40 seconds, then after that, works just fine, starts like normal, you would never notice anything outside the ordinary. ...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.Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Performance Parts Discussion. Lml no start. Jump to Latest Follow 3K ... Got it to start it ran good drove it for a little bit and shut it off now it wont start at all now just cranks. So i installed the air dog to help find leaks i found one in the valley on the feed line fixed that and rebuild ...2011 Duramax LML no start. Jump to Latest Follow. 14K views 28 replies 17 participants last post by lubricity Apr 21, 2021. 3. 358Mustang Discussion starter. 656 posts · Joined 2013. #1 · Mar 18, 2016. Truck just died while driving, now it wont start. It came in with some theft deterent codes.3.0L Duramax Reliability. The crank no start issue is the major problem that has ravaged the 3.0L Duramax. Sometimes, the dealership may have to attempt several possible causes before detecting the problem, meaning your truck may stay longer at the dealership. ... The Duramax LML got a few new emissions systems that the LMM didn't have, most ...OkDually. 24260 posts · Joined 2013. #2 · Jan 6, 2023. Welcome. First, check for any trouble codes and post the exact codes here if any are found. Try installing the original FPR back in. Inspect the fuel lines to/from the CP4 and make sure they are not dry rotted/cracked or kinked in any way. Inspect all fuses.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. 5257 posts · Joined 2009. #3 · Oct 19, 2020. P0340 is Camshaft Position Sensor Circuit. It will not set the same code for camshaft sensor error, that has its own set of codes for crankshaft errors. Basically it is not seeing a signal from the camshaft because its not seeing the completed circuit. Sensor or wiring issue most likely.Won't start. Took the factory fuel filter off (was band new 2500 miles ago last week) and it didn't appear to be gelled. (I've never seen what gelled diesel looks like but it acted like normal fuel and poured out) warmed up the factory filter inside, put a little 911 in it, installed it, let the lift pump run while cracking the filter so fuel ...Bought a one month subscription to Mitchell. Their spec indicates a minimum fuel rail pressure of 1450 psi @ cranking speed. Mine actually barely started today with a rail pressure of 1228 psi cranking @ approx 150 RPM. Engine idling rail pressure is 4K to 5K @ temp (180F) with a fuel temp of less than 135F. Did a balance rate test (in neutral ...It's now a "Crank no Start" situation. I am replacing the injector return lines and regulator with new but am not sure that will fix the issue. ANY IDEAS? 2012 LML CP3 (proactively before CP4 failure) No-EGR, No-9th Inj CTS2 SOTF tunes ATI Damper 4" full exhaust and DP Titan tank/Beans Sump Fuel Filter Delete FASS150 with new filtersThis 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. 1.2011 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. ...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 ...Sep 12, 2017 · LML No Start (Has Rail Pressure) I have a LML that will not start. Several days ago the truck died on me. I checked my Air Dog and found that the motor was locked up and not moving any fuel. After replacing the Air Dog motor I now have plenty of fuel flow to the engine. I confirmed this by putting the supply line in a bucket and watching the ... Quncy, Fl. Sep 28, 2010. #3. A bad injector that white smokes will not show up on the balance rates. One way to rule it out would be to use the DVT and control pressure. Ramp it up 1 kpa at a time until it goes away. Then turn off controls and watch it come back in about ten seconds.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.0. Oct 17, 2014. #1. I have a 2011 LML with a 4" MBRP straight pipe and H&S tuner. Runs awesome but it wont start without giving it a shot of starting fluid. Had the CP4 and fuel pressure regulator replaced and that did not change a thing. It throws the P0087 code and every time I reset the fuel filter life in about 10 mins it goes back to 0%.Replaced both batteries on my 2016 HD 2500. Install seemed to go well considering the designed to be a PITA design. After both new batteries were connected, everything seemed fine but the truck wouldn't start -click only. Rechecked all the connections - same thing. Disconnected the batteries - waited - reconnected and tried again with no change.What's up I'm back to help anyone out there that's having no start no crank issues with their Chevrolet or GMC Duramax truck. I chased my problem for about 4...2013 Silverado no crank no start. short version, the F harness had about 15 wires chewed up. I repaired the wiring but the truck would not crank. I replaced the f harness, tested fuses and relays in both fuse boxes. still have the same problem, the power comes on at the turn of the key. it still will not crank. no codes on the scanner.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. Mechanic's Assistant: Have you noticed …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 ...Jan 1, 2021 · Ron Nielson. 10664 posts · Joined 2009. #2 · Jan 1, 2021. Double-check your ECM and TCM connections. Something happened during the trans removal and replacement. Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different. 2008 Silverado LT, Crew Cab, 2WD,LB. Bentonville, Arkansas. Feb 28, 2009. #1. New motor is in. It cranks over and only trys to fire a time or two after cranking over for a few seconds but it never starts. Rail pressure goes up to around 7000psi while cranking but injectors don't ever seem to fire. Each time I get DTC code p0336 (Crankshaft Position Sensor A) - status MH.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 ...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 ...Now it just cranks, between 1500 and 1800psi. I bought a brand new filter head/filter, still no change. Bought MA rebuild kit. Found a crushed o-ring in the brand new filter head. Replaced all seals, still no change. Bought driver side fuel rail with new sensors, no change. Primer gets hard about 5-8 pumps, still no start.1. Ignition OFF, disconnect the FRP sensor connector. 2. Turn ON the ignition, with the engine OFF. 3. Observe the Fuel Rail Pressure Sensor parameter with a scan tool The fuel pressure should be 200 MPa (29,000 psi). If the fuel pressure is 0 MPa (0 psi), test the FRP sensor signal circuit for a short to ground.Alright guys so I’m kinda stuck I have a 2014 lml duramax the truck has a lot of motor work done to it. Air dog lift pump cp3 conversion kit hot side and cold side piping kit aftermarket cold air intake Schmedding turbo Wagler pistons, Wagler pushrods wagler cam Wagler flywheel arp studs Etc…. the truck in the beginning what happen was the rear main seal blew out spun the main bearing ...18259 posts · Joined 2008. #3 · Jan 7, 2019. If you do not have fuel in the CP3 pump- only air- it will NOT build rail pressure. Disconnect the fuel line at the CP3 and put a LITTLE pressure in the fuel tank, use a rag around the air line- check for flow out the hose. Possible the in-tank line is cracked- fuel hose at the driver side of the ...Depending on build date, your 2022 would have had it from the factory. If built before then the dealer should have applied the update whenever the truck was in for service -- imo especially if it was a start process complaint. The updated software takes about (iirc) 0.2 seconds longer crank before it injects fuel and starts.Buy Bosch LML or LGH Injectors. Injector Testing Information. a. (No Start) Disconnect the electrical connector and return line from one injector. Plug the fuel return line fitting with a suitable tool (CH-50377-A). Crank the engine for 15 seconds and verify no fuel leaks from the injector. If fuel leaks from the injector, replace it.lmm wont start. my truck has been at the dealership for three weeks and they still cant get it to start. I am starting to question the competncy of this dealership. first they said the fuel filter housing was cracked- replaced and still no start. then they said fuel pressure regulator-replaced they claim good fuel pressure but still no start ...Apr 27, 2017. #1. 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 11-16 LML Forums. 11-16 LML Performance Parts Discussion crank no start duramax ... ihave a 2015 duramax crank no start problem changed fuel filter head and filter and no difrence i can start with starting fluid and runs good stalls a little at full throttle added a electric fuel pump still dont start also i haded deleted ...LML cp3 conversion won't start need HELP! Ok so I have a 2012 LML duramax which I bought a year ago. About 6 months ago I tuned it and installed a wc fab y bridge kit and the truck ran flawlessly. I decided I was going to to a cp3 conversion because of the known cp4 issues. The install went pretty well I feel and I also installed a FASS 165 ...Reduced engine power - No Codes. Last week my wife's LML (disabled EGR, exhaust, Tuned, airdog 4g lift pump) went into reduced power mode. She was below 1/8th tank. she turned the truck off and started back up. no more reduced power. she drove it to a gas station and filled up. I chalked it up to maybe a fuel pickup issue and I should install a ...Feb 14, 2007. 13,597. 627. 113. Texas!!! 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 …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 ...11-16 LML Duramax Powertrain. Follow Forum Create Thread Filters ... 2016 Duramax won't start after fuel filter change. Polymather; Apr 18, 2024; 18 ... FIXED!! No dash lights no crank 2015 LML. NBE1; Dec 22, 2021; 19 11K Apr 14, 2024 ...Ran the tank down and refilled with fresh fuel and haavent had any problems since. 2006 CCLB LLY . 5" Flo-Pro exhaust with 6" tip, s&b intake, EFI live, Transgojr, Allison deep pan, Nicktane cat adapter, 17" wheels with 285's, nerfbars, ventvisors, fronts tinted to match rears with shadeband, and remote start.
Crank no start but will…. 2015 Chevy 2500 with 6.6 duramax. Crank no start but will start on ether and run fine. Hand pump will build pressure but it bleeds off pretty quick. Ran a hose from external tank directly to injection pump and still wouldn’t build enough pressure to start. The injection pump has been replaced.. Gloss nails grandville mi
Duramax Fifth Generation: 2011-2016 (LML) HELP - LML sudden crank but no start. Jump to Latest Follow 392 views ... I'm hoping someone may be able to help me diagnose a crank but no-start condition on my 2011 LML. Zero issues whatsoever up until last Thursday when it wouldn't start for me to leave work.Reduced engine power - No Codes. Last week my wife's LML (disabled EGR, exhaust, Tuned, airdog 4g lift pump) went into reduced power mode. She was below 1/8th tank. she turned the truck off and started back up. no more reduced power. she drove it to a gas station and filled up. I chalked it up to maybe a fuel pickup issue and I should install a ...2012 LML no fuel rail pressure LML Duramax, Diesel, brand new engine, 2012 Chevy 2500 HD 6.6 Duramax, Crankshaft - Answered by a verified Chevy Mechanic. We use cookies to give you the best possible experience on our website. ... I've got a 2016 Duramax 6.6 LML. It's a crank, but no start. I try priming the fuel on the filter head, but it loses ...This duramax was brought in for a cranks no start condition. It's not making any high pressure fuel pressure. Starts and runs with propane. I believe its got...Brought the truck in to get an EAS/EGT probe installed+Turbo timer and now have a couple issues after leaving the shop. 1.Remote start no longer works. 2.truck does not turn over manually 1st try (doesn't even try to crank) and 2nd key turn starts as normal. These 2 issues seem correlated to one another/obviously electrical, I'm just trying to ...Great, i would suggest measuring the low fuel pressure to the fuel filter input and output to the high pressure pump. And then we will start from there. If there is no lift pump or pump at all in the tank there should be a vacuum at the input of the fuel filter. Yes, but the system was made to work with an electric supply pump.GMC Mechanic: JoseV819. Your going to need a quiet environment. But the only way is by cranking the vehicle and spray soapy water on all the lines/fittings. Check for bubbles. So crank for 10 seconds at a time do tht twice then check for leaks. Ask Your Own GMC Question.Scanner shows 1 parameter where the fpr was reading off and the injector balance rates while cranking were fixed at .8 not fluctuating. all the lines were replaced except a few the dealer didnt have. 2015.5 GMC 2500HD Denali. EFI Live Starlite Tunes and Trans tune. Fass 95GPH lift pump. AFE intake, MBRP downpipe and exhaust.101 posts · Joined 2008. #1 · Dec 20, 2016. My 08 Chevy Duramax Is starting slow. Acts like weak batteries, but, Ive checked and both 2 year old batteries have more than 600 cranking amps! Ive cleaned the terminals. At rest the batteries have 12.8 volts, drops to 11.8 during starting. This started about a month ago I noticed it was slower in ...Mar 25, 2022 · 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. Can you turn the engine buy hand? Just to be sure it's not locked up. I have a 2015.5 Chevy 3500 single rear wheels. Emissions compliant.11-16 LML Duramax Powertrain. 2011 gmc sierra LML Denali No crank no Start Service Traction Control. Jump to Latest Follow ... New Batteries ran fine happened all of sudden No crank no start. Please help me. Save Share. Like. Sort by Oldest first1. Jan 12, 2021. #1. 2016 LML will randomly lose almost all of the gauges, does not show what gear it is in and says service stabilitrak, service 4wd, service power steering, and service trailer system. Most of the time this condition lasts 30 seconds while driving, it will not shut off, but it does shift rough when it does it.This hasn't happened before, but here's what went down: Turned the key and heard a single click up near the engine compartment. Starter didn't turn the engine over at all or even try. I tapped the starter a bit hoping it was a stuck solenoid or something, no luck. Tried jumping the battery, no luck.LML No Start (Has Rail Pressure) I have a LML that will not start. Several days ago the truck died on me. I checked my Air Dog and found that the motor was locked up and not moving any fuel. After replacing the Air Dog motor I now have plenty of fuel flow to the engine. I confirmed this by putting the supply line in a bucket and watching the ...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.Dec 24, 2018 · If rail pressure matches desired, diagnose other codes that may be related to starting problems. Unplug the fuel pressure regulator 2 (pressure control valve in left hand rail) electrical connector. Crank the engine for 15 seconds and verify there is a steady flow of fuel from the fitting on the rail. Depending on build date, your 2022 would have had it from the factory. If built before then the dealer should have applied the update whenever the truck was in for service -- imo especially if it was a start process complaint. The updated software takes about (iirc) 0.2 seconds longer crank before it injects fuel and starts.Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Performance Parts Discussion. Lml no start. Jump to Latest Follow 3K ... Got it to start it ran good drove it for a little bit and shut it off now it wont start at all now just cranks. So i installed the air dog to help find leaks i found one in the valley on the feed line fixed that and rebuild ...30 posts · Joined 2019. #1 · Jan 13, 2020. Engine wont crank at all. Batteries are pretty new. Lights and dash all lights up no problem, but nothing at all when turning key. Popped engine driver side fuse box open to poke around. Found issue with the "RUN/CRNK" relay, might be the cause..
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