Major Fueling Issues On This Duramax! *This Could Leave You Stranded*
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- เผยแพร่เมื่อ 26 มิ.ย. 2023
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This is the video I have been waiting for. Had issues last summer pulling my race setup to Minnesota. Deleted the truck this spring and thought it helped the issue but other day I put the hammer down trying to make it to store before it closed and it went into limp mode. Thank you for this video!
Tip of the day:
Keep a screwdriver or wrench in your truck just in case you run out of fuel and you have to call your wife to bring you a Jerry can.
I have an Airdog lift pump and it's REALLY easy to prime the fuel lines with that when I have something to open the bleeder screw.
Thanks I just have been having this same problem with my heavy loaded 5r during our heat wave in NM using my 2008 LMM
I have a 01 lb7 and noticed when I bought it had new fuel lines . Froze up on winter and I noticed those hard lines someone kinked them on install. I couldn't afford new lines so I bought fuel hose and cut kink out and spliced hose and clamps in were it was bad. Never had my truck gel up or not start again after.
Mine has done that to me also. I reset it while pushing the accelerator and brake simultaneously. I have a FASS pump on mine. I change both fuel filters every other oil change.
I really enjoy these videos. Feels like TruckMaster Garage but on the main channel. Appreciate it, brother. Keep it up!
When I installed my lift pump I replaced all the steel lines from the tank to the engine bay because the braided line to the tank was leaking and the line running to the engine bay was looking rough from many years in minnesota and it's an 06 lbz so it has seen alot of winters.
Sucks that Chevy doesn't go with stainless steel lines to begin with on these. Just did the lines on my 2008. Went with replacement lines from linestogo. Called them up, gave them my VIN and had them the next day. They have a flexible fuel line option for the last part that snakes up to the engine which makes that part of the swap out easier. Really happy with them.
When bleeding fuel on a duramax just crack the bleeder free and pump until fuel comes out of the bleeder consistently and then tighten it and it will start and stay running
Unless you have a plastic nspa filter.
@@dustinmetcalf1141yeah those napa filters are junk lol
Yes, I have run into this exact problem. In fact, it's happened to me 2 different times The first time was laziness and not changing the fuel filter for about twenty thousand miles Change the fuel filter reset the codes problem fixed. Ran probably about 3 or 4000 miles. Decided to go ahead and change the fuel filter again. Just to be safe so I didn't have to worry about it Got about 2800 miles out of the second filter. Then had to change it again. Still going so far. Stay away from Fram filters. And I have a 05 3500 dully
Thanks bud, I have an 07 1/2 3500HD, fuel issues after start up, replaced the primer pump seals, starts well but seems to starve upon acceleration for 5 seconds. Going to go over lines underneath as I’m in the rust belt Canada
My buddys dad has one said same thing happened to him towing to Tennessee fuel lines were collapsing from heat. My lmm always said change fuel filter after it was in tune 5 and I was getting on it
Had the same issue but on a breaking line on rear axle split on a durango. Swollen and imploded line made it impossible for the brakes to go back..
GM has a bulletin about the high pressure fuel line collapsing. One place it collapses on the left side where the fuel line comes up. Also underneath the bed of the truck same thing.
I had to replace the whole primer pump and filter assembly on mine. And you can buy a brass bleeder screw to replace the plastic one.
Very informative, and well done! I'm currently having some hesitation issues at WOT on my rebuilt 2011 LML, and this gave me something else to check. The visuals showing all the other small "checks" you did on the truck was helpful as well. Great job as always!
i found the oil leak on the bellhousing on mine to be the turbo oil feed line not a rear main or anything like that , in the process of doing the cp3 on my 02 lb7
You forget Josh how bad ass these lmm,s are I was looking for a Lbz for 2 yrs couldn't find a nice one so I remembered your red lmm and then I bought one I absolutely love the truck and it hauls ass man and tows extremely good I love my truck thanks for this video I know a lot of people own these lmm,s they're very popular here in socal
And Allison without a shift kit is probably going to hesitate just a little bit especially if the truck has not been put to the floor in the last 50 miles. It takes a little bit to relearn.
my 08's lines are collapsed just ordered in new ones. Been having a weird issue where my injector balances are reading good but each time I have checked them i have between 1 to 3 that are in the 1.5 to 3 range and its never the same ones. Went to do an injector cleaning and noticed the lines. Should probably check my rail pressure vs requested.
Thanks Truck Master great 😃 Job must do same thing looking at lines to go company great product
Earl you should name your channel Duramax, 101. Thanks you very much for sharing your knowledge with us.
Yeah I’ve been needing to do mine just sucks when you don’t have a lift.
I have a 2007.5 chevy 2500hd lmm and I was wondering what diagnostics scanner tool you recomend?
Great videos. Glad I found you I have the same and going to keep it 69K miles and all stock
You mentioned a Lift Pump. Have you a video on this? What do you recommend and what product? I don’t pull alot of heavy loads but maybe in years to come
Thanks
Good thing it didn't have a CP4 pump in it. You do awesome work on these diesel trucks and have an awesome channel!
rail pressure at the top of hills is the problem i am having, have airdog lift pump
How does installing a lift pump would help? What a brand do you
like best.
Had a stage 4 trans done lift pump tap shifter fleece and edge insight cts3 with the extra wires for the turbo truck does have 5pos switch efi live and gets now I got truck back and it doesn’t build over 6psi boost and lags almost 10 secs the goes to 18 psi then back to hardly nothing. Could this be a fuel issues it shifts all over the place too now I checked for boost leaks and all good their new maf sensor too idk im beat also the truck had the head shaved and new gaskets arp head studs
Nice job helping someone
The flex lines coming from the siphon on the tank and around the fuel return cooler both have issues with interior collapsing they behave like when a flexible brake line swells and collapses
The price for those fuel lines made me cringe but nice have a friend that could do the work. Nice video!! I'm waiting on TCM for my 2013 so he's in better shape than me at the moment.
The reason that done it the first time, and not the second time hesitating to shift The Allison knows what the motor needs it’s crazy to think but i’ve run into the same thing with my LMM or newer duramaxs in General if they don’t have the correct air or fuel, they will do crazy stuff
A lift pump would have pressurized that long line instead of holding a vacuum. They aren't magic bullets but they help more than they don't.
I have a 2008 LMM crewcab, long bed dually. What parts store did you get the new lines from. I am finding parts for the 08 have been discontinued. Do you think the lines for multiple years are the same?
very good video and good advice 💯
Josh if he brings the truck back to you check the transmission fluid color or change the filter and put new fluid in
Are you still using the topdon artidiag? Im debating between the one you have or the xtool d8 for my lbz.
How about you do a review of that artidiag 600S diagnostic tool that you use. We'd like to see more about that tool. It seems to do well with duramaxes.
Jake. Where did you get the fuel lines? I like the braded stainless
So.... does someone make a better fuel line?
I'm going to do an in-tank lift pump but wouldn't mind upgrading the lines while I'm at it.
Hey Josh. I have a 2016 lml and my def got stuck at 24%. Gm wants $220 just to look at it any suggestions?
Yes I have replace almost all the fuel lines under the truck I didn't have codes on my truck.
Hey Josh, do you have the part number for the fuel lines ?
Hi buddy, I would like to know where you are located because I have some issues in my Silverado 3500 diesel, and I really like your videos, thanks
This is the best channel out there on diesel trucks
🙏🙏
I had a similar problem on my 2009. Both times this happened I primed the filter and after many tries it started. Both experiences were 3 years apart. Both times I changed the filter and that seemed to work.
I don't know if it has anything to do with it but both times I was parked on a hill.
Yes it does if it's parked nose high fuel will return to tank. Replace the filter housing. Untill then park nose down.
Well done lad 👍🏻
My 2007.5 LMM fuel lines rusted through at about 8 yrs old.
What are the good ranges for the injection rates
I have an 08 LMM and had this same issue with the fuel pressure low and went into limp mode. I was watching your channel and a few others and the kinked fuel line was brought to my attention. Turned out mine had a kink near the driver side inlet on the braided section. I am a cheapo for now and put a hose clamp on the kink to keep it open and it is working for now (till I can replace the fuel lines soon) also might need some help with putting together a parts list for an EGR issue which I am going to be addressing very very soon. Let me know if you can point me in the right direction for making a list of parts for the LMM.
Do you know what code you were getting?
What's with the duel alternators?
Can you recommend a video showing how to change the U-joints on a Duramax?
U know it T M! Need a Air Dog 4G or the new 5G! Totally excellent Job on fuel line's 🛠🏁💨🤘🏻
If you drive different than he does the Alison is constantly learning so it will act differently a few times. I ragged on mine always then drove nice in a Different tune and it down shifted gard twice never did it again. I did research and everyone said they are always learning so don't worry. Also spin off change every 50k on trans run approved allison fluid not just a dex 6 tes 289 if I remember correctly. I have 2 2009 gmc duramaxes and a shitbox 2016 lml that keeps leaving me stranded especially liked leaving me stranded in the woods in the u.p. for days on end and northern Wisconsin. Maybe it was a hint to enjoy the trees while I could again but hey I figured out issues and made it out of the woods. Injector replacements were not fun in the parking lot while it was about 100 deg out though 😂
I have a 2013 Chevy 2500 HD, 6.6 Turbo Diesel, slightly gave it gas to pass a car to make interstate exit, truck bogged and eventually shut off when rolling around the exit ramp,
Primer bulb felt loose, replaced the fuel pump road side and tried to crank a few times but battery died. No check engine light, cuts off once fuel pressure is met as usual with first cutting on the ignition.
My biggest concern is there was a good bit of metal shavings in the fuel filter, some bigger rusted flakes some smaller clean metal shavings but enough to be concerning.
Seeing a lot about injection pumps from my research, definitely going to check all fuel lines while she’s down, I’ll start with bleeding any air out and repriming, don’t want to risk getting any metal in engine fuel components, can I trust the new fuel filter to catch that or should I look into flushing the lines and troubleshooting the pump before attempting to start anymore?
ive did a reroute on my 2008 3500 chevy lmm and installed a catch can. my problem is i get oil coming out of the catch can filter and was wondering if i take the catch can off and let the hoses run down would i get oil on the bottom of the truck. thanks for the knowledge of these trucks.
You might get a little oil over time. But i run my hose to the outside its just easier.
@@jonathoncatterson8901 does it leave oil all over the bottom of the truck if i run them outside
I am looking for a scan tool that I can monitor my engine parameters with. I saw the one that you were using and it looks pretty simple. Does it also do forced regens if you need to?
I don’t believe that one dose regen but a good scan tool is a edge monitor
Good video. How many miles? I have same exact truck plan to keep it long time. I’ll check my lines tomorrow. That shift could have been cause he doesn’t drive it like that. From what I’ve heard they are very adaptive transmissions
Like 150k miles
So I recently took my family 1600 miles round trip to Central Montana and had my fuel filter light come on a couple times and my tuner threw a code at me while passing slower traffic under load and it said fuel rail pressure low. I have a LML, I put a lift pump on it this last weekend and through advice of a local friend, parked it and ordered a Cp3 conversion kit, I did notice that one of the notes after I had placed the order for the cp3 kit said that if I am running a lift pump in tandem with the cp3 kit, I needed to make sure the PSI from the lift pump was no more than 2psi. It's a Fleece cp3 kit and I'm running a Fass titanium 100gph lift pump. Any words of wisdom on that? How do I change the psi if needed? I tried searching all over TH-cam and can't find anyone mentioning this being an issue, so trust and hope are in you for some help brother!!
I'm assuming the initial hesitation to shift was probably cause by the lack of fuel pressure before and then it finally seen full pressure and the taps was like wait hold up a sec here lol
Hey Josh, something simple you may not be thinking about but when it hesitated, it could have been that the owner rarely flatfoots it. You know as well as I do that those trans learn the way you drive
Very valid point I didn’t even think about that
Wow josh this is the same truck I just bought thank you so much same year too I love mine it's in mint condition I'm going to check mine I absolutely love my truck it only has 120,000 on it no rust it's worth saving it
What scan tool is that?
I wonder if you seen way worse fuel lines than that owning you live in Michigan, honestly that frame didn't look to bad since you live in Michigan.
Guys want a cheep lift pump the filter/pump off a Ford 6.0 works mint obviously not for high horse power builds but for every day driving
8:57 a true Earl shower right there! Yee haw!
😂
I learn something from all your video's. Should that Schrader valve be opened and purged every time you change filters or suspect air ?
Thanks! Also no it’s not necessary
That hesitation shifting could have something to do with the glow plug module code. When I had a bad glow plug module in my LLY it would shift funny sometimes. After the new Glow plug module, never had a problem since.
Good to know thanks
Seems odd, I have an LLY as well, and the glow plug module went bad, had a check engine light, and it still shifted fine.
@@2015_Rubicnn mine set a Trans code as well when the glow plug module went bad. Posted on the LLY page about it and someone just said replace the glow plug module 1st and see if it clears the rest of the codes, and sure as shit it did and has been perfectly fine since after 2 years now.
@@2015_Rubicnn if remember correctly it was some sort of TCM communication code that set when the glow plug code was set.
@gvent3080 I'm not saying that didn't happen, but it just seems weird.
Can we get a video on the Cummins
And
Can we get a update video on the your military friend Truck that you built for him
Wish you would come fix my head gaskets
Your lucky to be able jump back!!! Imagine the guy on his back in the driveway and cant move quick
Your not kidding
Hello Josh. Wow major fueling issues on your friends truck where his fuel filter is empty. I know that you'll find the issue and fix it for him.
Josh where did you buy your fuel lines? I have a lly duramax. Thanks Bob.
I wanted to replace my fuel lines for my 2011 Crew Cab Long Bed Dually that run from the fuel tank on the driver side up by the transmission but they have been discontinued by everyone, Doorman , AC Delco ,GM themselves, lines to go , Inline tube . .I was referred to go to the junk yard but the defeats the purpose of going new and to stop collapsing fuel lines while under suction . Can the rubber be cut off my old tubes and new rubber with clamps be added for a new joint? What kind of fittings can be used to replace the old rubber fuel suction lines . Any leads would be help for or what can be done would help me too . Thank You
What have you done about it?
@@j_rainsgoat3929 Nothing just yet , still running stock fuel lines
Let me know what you came up with for a solution. I am having the same issue with discontinued parts for my 08 lmm.
Hesitation to shift... Could that be the Allison tcm relearning to a full throttle? I hear they self relearn all the time as you drive em. Mind you mines an ol 03 lb7 tried and true. 180k ZERO BLOW BY. I check often .... Prananoya
Was thinking the same when i heard this. When i bought my 05 LLY couple years ago, my buddy plugged into it with his knock off snap on scan tool, and set my trans to "relearn" my driving habits from the previous owner. Not sure if the newer gens have it actively learning or not, but that was def my first thought. Giving the motor the fuel it has been screaming for, and then it getting it. probably like chugging a beer too quick when you get off work. get a lil choked up. lmao.
So was the fuel line the main culprit? I’m having the same issue where when I get on it, it goes to reduced engine power, then the fuel filter also goes off when it’s at 100% right back to 0% when I get on it. No blow by, no leaks once so ever just stuck. Any help?
I honestly don’t know after all this I kind of gave up but it’s very possible the fuel issue is the problem as well
@@TruckMaster alrighty appreciate the help
Seventh 👊🏻💪🏻 Cummins to the rescue 🫣
My LBZ was leaking at the cooler. When I put my lift pump on, I put those Dorman stainless lines on it and deleted the cooler. No leaks, runs like a charm - but boy I was baptized in diesel fuel. Not a fan of fuel line replacement
Surprised you got rid of the cooler. My buddy just put one back on his truck and fuel temps drop like 30 Fahrenheit
@@jonathoncatterson8901I’ll probably end up putting a new one on it. Was on a time crunch though and didn’t have the new cooler in hand yet
What code were you getting
I can't believe you would say things about God and country!
All I can say is..........
I'm now a lifetime subscriber!
Oh, and by the way....Darn 6.0s always sound the best and I'm not a Ford guy!
I don't know why GM doesn't use better fuel and brake lines. Those are the first two things I look at when I get a used GM vehicle. Very dangerous to have a brake line blow out that is corroded. Salt just eats them up.
I'm selling my 06 LBZ, just need to get my stuff out, wash, and vacuum it.
Ey Josh,im looking at a 2008 LMM down here Australia,i seen you replacing head gaskets on the LMM on your other video,have these LMM trucks have head gasket problems ?
You shouldn’t have to worry about head gasket problems on the LMM’s just emissions issues
@@TruckMaster Edit: Ok thanks Josh,keep up the good vids mate been enjoying watching them,Cheers Bryan from Downunder..
@@TruckMasteremission problems please do tell me
Where did you order these fuel lines from ???? Everybody has fuel lines for injection stuff but not main fuel lines ? I have the same problem with my truck
Dorman
@@TruckMaster Thank you for the tip, Can those rubber braided fuel lines up by the transmission still collapse even if i have the fuel tank pressurized with 15 psi . Will the walls still collapse and close when the injection pump draws fuel even when the walls of the fuel line are pressurised by a external source ? . I made a fitting from the air compressor to the fuel tank of the truck . Seems to me you are a believer in Christ as I am too.
Update us on this as soon as u can... my lml has collapsed fuel lines right at the connection.... I thought it's supposed to be like that 🤦
Honestly it Probably fixed the problem. Starving an lml of fuel is deadly. Better replace it anyways regardless. Unless you wanna pay for the entire new fuel system when that cp4 blows up..
@timAA205 exactly.... I'm planning on cutting the flex fuel lines out and going with 1/2 steel... just on the flex braided lines. I'm from the south so the salt and rust isn't the issue... mud can be but,not real common down here. Thanks for all that you do. Im a Certified TH-cam mechanic ..lol.
I own an 08 duramax and I have these same issues it has a fuel pump and it is still having this issue the mechanic can not figure it out any ideas on what to check next has new injectors and fass fuel pump
Check your fuel pressure relief valve on the rails
Google fuel pressure relife valve bottle test
I second that. Get a fuel rail valve but one with no spring. Cheap part worth trying before throwing big money at it
Ive already replaced the fuel rail valve also
Man with all that replaced you should be fine, check all your lines for leaks and make sure your filter is newish and has a good seal, i remember something about the filter housings having an issue sometimes, atleast with a fuel pump it will be a leak instead of sucking air so should be easier to find
It’s a shame we even have to figure this stuff out ourselves because the mechanics won’t do their job or know how to solve issues unless a scanner tells them what to do
What brand was the fuel lines
Dorman
600 perfect time for a lift pump
will this problem give you a low fuel pressure limp mode
Yes it would but it could just be your fuel filter is clogged or your fueo rail valve is bad and the spring in it is compromised. Check those areas as well. Very common
Normal coolant temp for a 2014 6.6 Savana,
Duramax usually run 180 to 195 just normal driving when warmed up. Will get hotter on hills but then your fan shoukd kick on
Injectors should be between -4 to +4 anything more or less they need changed
👍
Mine i can't drive it will not start.
🤙🏽🤙🏽🤙🏽
Why why would u ever spend 500 on fuel lines when u can get compression AN on the steel lines and run braided fuel line with AN reusable ends
Work on mine
Where are your glasses😂
Haters 😂
It always leaves you stranded... In the wallet
Throw those stock filter heads in the garbage
Screw stock fuel lines just go buy some reusable an hose ends and braided line why would u ever spend 600 on fuel lines that's stupid