Chevy Duramax Diesel stalling? Most likely cause for intermittent stalling or non-starting problems.
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- เผยแพร่เมื่อ 16 ต.ค. 2020
- Does your Chevy truck start up and then stall out or stop running spontaneously? Here's a probable solution to your Chevy Duramax diesel 2500HD stalling and having to be re-primed. This is usually a known issue with the fuel primer pump and or filter. Normally, it will get progressively worse as the problem persists. It's an easy repair and it's cheap, so its a good starting point if you are trying to figure out an engine stalling or intermittently not starting up while cranking over.
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This guy is spot on. If you own a Duramax then you already know it by far the best of the three. I have an 2002 LB7, and we all know about the faulty injectors, I upgraded mine in 2012, and up till last weekend (Jan. 2024) this truck never ever faulted, but it did start and stall once, I popped the hood and the filter head was wet, it was still the original filter head and never been rebuilt. Like this guy says there many on Amazon and I got a new filter head, it came with a new filter and water separator and heater...everything for about $100. If you do not have a lift pump on you LB7 then get one!!!!! What a huge difference!!! It has a particulate-air fuel separator and a water separator plus feeds the engine pump under pressure. The injectors get pure fuel with no air in it which is a main cause for eroded injector nozzles. Mine is Air dog brand and was worth every penny.
Glad it helps ya. Good luck with the d-max
Best video I ever seen on the filter situation
Thanks 👍
I agree completely! 😢Wish I could find a reliable mechanic whose goals don't include my bankruptcy! Priced lift pumps, but vary from $170 to $900! May not need one after seeing this!😊
Thanks man, I got whole assembly from Dmax store 2 months ago and not a peep from my truck, Awesome! Cheers from canada
Great explanation and helped me find the issue. It was the filter housing.
Quick question did your truck have a hard time to start like if was surging for fuel
This video really helped me .was just having the same problem today.
Great video. So informative covering a lot of common issues.
Reading through comments i cant fathom why people feel the need to be cricitcal (unless you ask for feedback). You didn't need to do a video. It's free help. People are pathetic. I think this was so helpful so THANK YOU.
I called the dealer and they only wanted $150 for the whole assembly including the filter. So I just bought it and bolted it on, I don’t feel like dealing with it later on a job site. Thanks .
I just want to say thank you this is an awesome video and extremely helpful
I doing exactly what you said today and my truck is running today
Top shelf video man. A good way to check fuel lines is to pressurize the tank ( a few psi ) considering it’s a vacuum system it helps to see the leak.
Excellent video... thank you!
Thank you!...this was extremely helpful. I'm so glad I watched your video cause I found a very small leak where the wire connects to the filter head (yep the wire). This saved me from having to take it to the diesel mechanic and saved me money.
How did you repair that leak? Mine is leaking at the same place. Thanks
The BEST fuel air/filter/pump video on the entire internet. You’re awesome! Keep up the good work. The other guys suck.
Thanks 👍
Great video ! Just did mine watched this after and agree with all the facts
Thank you! So much great information. Saved me so much money.
Glad it helped!
Amazing knowledge detail video. Thanks. 🙏🏻🙏🏻🙏🏻
Great video! It definitely has helped me!
Great video
Good Video. I changed my fuel filter about a month ago even though it wasn’t time to do so. It had about 50% life left in it. But after I did it said zero life left in fuel filter. I checked everything. Couldn’t see a problem. So I put on another one. A different brand this time. And it told me the same thing that I needed to change the fuel filter. But there was no problem so I just continued driving the truck.
Last week I was idling for a long time and Truck went into reduced engine power and shut off. I waited a couple minutes and I Turned the key back on and it wasn’t in reduced engine power mode anymore. But it wouldn’t start until I got some starter fluid. Then it ran the rest of the day just fine. The next day the same thing it went into reduced engine power but it didn’t die. Had to shut it off for a minute to reset it. but then it won’t restart, I had to prime it like crazy and use starter fluid then it’s up and going and everything‘s fine. Also it’s getting hard to start in the morning you have to prime it. There’s another thing that might make it easy to figure out the problem is. It did it almost every day last week and every day it was over 95°. It won’t do it if it’s cooler. Do you have any ideas what you think I should focus on? Thanks . She you make great videos
Also I want to get one of those new doorman’s that you have. Do you have the part number. I’m sure I can find it but you never know. Thanks
Sounds like your truck might be a bit newer, I'd suggest putting a OBD reader on it and see what codes it's throwing. Probably best place to start in your situation
Excelent information. Thank you!!
Fuel problem happened today. Bottom of fuse box replacement fixed electrical ghosts. Was around $800 installed.
Nice video thanks
I love the tips
My duramax did the same as ours but still runs without priming it, I just keep cranking it till it engine starts to run. I did recently change the fuel filter so I’m going to check if there’s a leak. Thanks for the useful information brother
Yea, if it's small leak it might work, but eventually the problem will show itself if air is getting in the system. Good luck!
Great video! Would like to see how you prime it for use once you've done all this work. Oh nevermind. I just saw the date on the video but if you get a chance it would be another informative video.
My lift pump primed mine automatically.
Install a fass lift pump every Duramax should have one it solves a lot of problems
Hey man. Thanks for the video. I have a similar issue where I've gotta prime the system to get the truck started. It will randomly go into limp mode. Gas light drops to E. I can clear the codes. Reprime the system and the truck usually runs fine for an hour or so drive. Problem seems to be getting worse. I've checked over my harness. Wiggled and pulled all the injector wires. Checked the obvious spots grounded. And I can't replicate the problem.
Those can be tough until the problem is more consistent. When tracking down electrical I usually start with the ground connections at block and frame.
Hello! Thanks for showing the video about duramax not getting prime! I have a 2008 gmc Sierra 3500hd duramax. We've had this problem before and changed the fuel filter and that took care of the problem, for awhile. Now for about 2 weeks we have encountered the same problem with losing prime. So, we changed the fuel filter and the fuel filter prime assembly. Pushed the primer button to pressure it then started and drove around the block running it fast hoping it would get the air out. It still didn't work without priming it and starting. So, my question is what do you think the problem might be? The fuel line from tank to the fuel filter? Thanks!!!
It's probably the file filter housing as described in this video.
A Klassen
0 seconds ago
Good video. I have an 03 2500hd. Does not stall while running but periodically will not start again once stopped. I then have to prime it and it goes again. I checked all the issues you cited but did you miss one air entry point?? Could I have a bad schrader valve (bleeder valve)??
Thanks
Impressive... he said "um" or "uh" an amazing 124 times in 17 minutes. That's about seven ums per minute.
Spot on causes for losing prime and surprisingly common on older duramaxes.
Now to track down a random/unpredictable stall issue that most definitely isn't a prime issue...
Um .. uh. .... Non- prime stall issue. - check Cam and crank sensor or wiring issue. Probably and electronic issue. 😉
He’s not a professional actor!! He’s trying to help us!!
thanks hoss
I've started getting a problem on these cold mornings with my 2007 corolla verso 2.2 Diesel will start the first time without a problem and idle normally. After about one minute or so warning light will show up on the dash than fter another 30 seconds the engine cuts out.
When the engine dies, I can restart again without a problem and the whole scenario starts over this happen until the engine warms up. once the temperature reaches 60 and the blue light goes off the car works fine the rest of the day.
I cleaned the EGR, polished the glow plugs and tested them, put a new fuel filter, tried a working SCV from my mate's car, and did a full tank with fuel treatments.
None of the above-mentioned worked however the car performance is much better.
I tried to warm up the fuel rail line with a hot cloth soaked in hot water and will top it with hot water every now and then and the car did not cut off but won't drive as normal unless the engine itself is warmed up.
Once it is warmed up it runs fine. Any idea what else could it be? Thank you
Well, that's definitely a completely different engine and scenario. But if it's throwing a warning light. You should get your OBD2 code reader out and see what code it's throwing. It might be the computer shutting the engine down for a specific sensor issue.
@@notoriousJPG Thank you so much for responding, the code I keep getting P0093
Hi your video is making sense. Dose this occur in the LML Duramax
Yes it can, d-max use the same filter head for years.
My truck only does this stalling in warm weather- never a problem in cold. I usually unplug the battery cables and let it sit for 24 hours then it will start again. Any suggestions yo help me narrow down the issue?
I know it's been awhile but try unplugging and then reconnecting the wires harness. Located on top of engine of driver's side. There are two large connectors there. This will reset the computers and may help to isolate the problem.
Right here under the hood is where this is at.. uhh, it's basically on the passenger side, behind the driver side wheel... @ 6:32 :D Cool video, notoriousJPG. From the looks of that coolant tank and 280k on this one, it's probably time for head gaskets.
🤗 they were done at 200k. All new heads.
Likely the fuel filter prime pump oring or bleed screw oring
I have an 06 lbz and my problem is
Truck cranks a lot to start, losses primer built the filter head and changed the filter 2 times with 2 different brands and still no luck,replaced the hoses and just installed the whole filter head from extreme diesel and still doing the same thing. When I un screw the diesel cap to fuel up air gets sucked in like a vacuum I bought a new diesel cap for it and dose the same. The truck fills up with only 16 gallons so I'm guessing the tank has collapse, what do u recommend it could be
Yeah, if your truck only holds 16 gallons there's definitely an issue there. I'd start by looking at the tank or see if somehow a lot of water got in there. The fuel cap issue you mentioned could be related to that or fuel tank ventilation issue, possibly a blockage in the return line back to the tank.
For the water separator on the filter, i tried to open it to see if water came out, instead it seemed like DSL ran out (it was clean, no metal or water). Should DSL by in that trap if water is not present?
Yes, you'll have that, it's a diesel filter. But water will settle to the bottom. Water can be tough to see when it's draining since you'll inevitably drain some fuel too.
@@notoriousJPG thank you sir. Great video. Mine died yesterday so I'll be tackling the filter head today
We bought a duramax with 03 body and 05 duramax, truck ran good at first but it randomly shut off on the road and it would turn on after a few seconds until one day it shut off and didn’t start anymore, took it to a shop and they said the reluctor wheel was bad and they change but still no start. Another told us it was the ficm. What do you recommend?
Hey did you fix your problem i have the same thing happen to my shut off and starded with fluid and it was runing fin now it cranks but no start my primer pump wont prime
It's common issue good chance this is it.
Mine has been doing the start and run for a minute and then stall. Had to prime and it would start. Now it did it this morning and won’t build pressure at prime. Any ideas? Thanks in advance.
Sounds like the primer pump seal.
Every once in a while my truck won’t start without priming it. When I fill the truck up with fuel it’s fine until about 1/2 a tank. I’m thinking my actually fuel pump in the tank is weak
There's no pump in the tank on a d-max, just a sending unit. It's possible you could have a problem with the pickup line though.
Hello! I have a 2001 Chevrolet Duramax 2500hd. After hooking up my utility trailer onto my truck I pulled towards and my truck stalled on a full tank of fuel! I turned it back on and drive it down the road 1 mile it shut down on me. What could this problem be! My truck has 356,489 miles. Could it be the whole prime and filter issue! No codes are on my dashboard. I need help.
If it re-started without repressurizing the fuel system then I'd start by looking at other options. It could be the very first sign of a fuel filter head problem or could just be the filter is clogged too.
I noticed when I prime mine, diesel fuel leaks from the black plug in attached to the top of the fuel filter housing. Think that’s probably the issue?
If the black plug you're talking about is plastic and shaped like the head of a bolt and has a screw slot, then that's the bleeder screw there's a gasket on that that's probably bad. You can also get aftermarket ones made of aluminum. Otherwise if it's the black cover that goes over the wiring that goes to the diesel fuel heater. If it's a leaking from there then it's an internal gasket in the filter head area have to be rebuilt.
@@notoriousJPG I have an aluminum bleeder screw. It’s the black housing over the wiring that’s leaking.
@@michaelnoneya4833 Yeah that’s your issue, rebuild the filter head
there actually a little over 1k now on the dealer
Jeez. How common is this problem? Doesn’t anything work anymore?
Use Archoil 6200 and 9100
Mine runs but don’t go more than 45 miles and looks like the injectors don’t get enough disel and now the fule gage show empty and its full
Sounds like several different issues. Probably sending unit in tank for the fuel gauge. The injectors could be a range of issues. Fuel lines, injectors, pump or others. First ... Check to be sure your oil level isn't increasing from diesel getting into the oil, so your engine does not get trashes from contamination. Then you'll have to do some Targeted diagnosis. Good luck.
My problem is it is surging / idling rough at a light I am wondering if this is it….
Well, that's a really tough one. Could be many issues including fuel filter. But most likely if there's air getting in the system you'd probably have stalling and a no start or hard starting issues also. I think about looking into the injectors and fuel rail pressure. it's possibly gonna need some testing there. It takes a sophisticated scanner to see balance rates etc. A cheaper solution I've used in the past is an app called torque pro you can buy and use it in conjunction with a Bluetooth OBD2 connector. This may or may not tell you something useful information. Good luck!
This becomes more of an issue when you're less than 1/4 tank parked on an incline
Ty that was helpful! Mine just cuts off at a stop light but cranks rite back up! Going down the road it’ll die like it wants to cut off but don’t not yet anyway!
Mine does the same thing but blows smoke. I changed the injectors and cp3 pump so I don't think it would be that again
Did u figure out the problem? Appreciate any info..
If the water separator wires have connection issues,can that cause the motor stalling?
That's not usually the case. They are for the fuel heater.
My truck has the same problem. Randomly stops running. I replaced the filter head and the short lines to the motor. When it stops running I can prime the fuel system and it starts up but the check engine light is on and the fuel gauge stop working. I disconnect the battery,hook it up and the check engine light is not on,fuel gauge works. Runs for about 30 minutes then stops. Any suggestions? Thanks!
Try unplugging and then reconnecting the wire harness. Located on top of engine of driver's side. There are two large connectors there. This will reset the computers and may help to isolate the problem. May be electrical.
@@notoriousJPG thanks for the help! Great video also!
Okay I need help I can’t figure out the problem, I have a 2006 2500 lbz it starts with no problem but as it warms up it gets a low fuel pressure code then shuts off, I’m stumped and I can not figure it out
Sorry, not really sure on that one but it's most likely an issue after the injector pump. Possibly the pump, fuel rail, fuel supply lines etc. Definitely need some pressure testing equipment to figure that one out. Be careful, leaks on the high pressure side can be dangerous. Probably time for a diesel shop diagnosis. Good luck with it!
Had that happen on my 2005 LLY duramax. It had a fass lift pump on it and everything was primed up all the time, air free, water free, no leaks etc… tuned and egr deleted. kept getting that low fuel rail pressure code and shut off. Turns out I had to install that aftermarket PPE race fuel valve on the backside of the fuel rail to replace the stock GM spring loaded one. Had so much trouble getting the old one out I took it took a shoo and they had to pull the fuel rail to get the damn plug out but they charged around 250 for labor I just brought them the aftermarket fuel rail plug.
It’s been 35k miles later now and I haven’t had an issue.
My truck will run but it won't run over forty or fifty miles an hour is like something has got the fuel restricted or
I have these problem right now whit my 2009 GMC Sierra 😢
What year of truck is this and do you know the part vin
That truck is a 2004. Would be the same until at least 07. Switches slightly around 2011. The only difference is the angle of the fuel line hookups I think.
My truck is having an issue where it’s sucking down the primer it sucks it shut and then I have to unscrew and let air enter the system and then I can prime it. Can’t down an issue
Never saw that before, but there should be no air in a diesel system or will cause sputtering and stalling. Have you changed the filter? It could be clogged and not letting fuel flow through quickly enough.
If you just put in a lift pump like the Airdog 2, you will never have this problem, never have to change the stock fuel filter, and it will make your truck run better, save your CP3 pump, and your injectors last way longer.
Would it make your truck take a long start
Probably not, would most likely cause a no start situation.
Has anyone ever installed one of these and had the pump not budge? I can't push the damn thing and now it's raining. Maybe I'm missing something. I hope....
Rebuild the head...It's simple and about 11 Dollars...
How about buying a FASS or Air Dog.........
Engine light.. reduce Engine power.
Merika Brother
"passenger side wheel".
Duramax are JUNK! I have been down that road. JUNK!!!!!!!
The truck being worked on is an LB7. you can tell by the filter/primer housing. inlet and outlet connections come out at a different angle than the newer models. newer models wont line up with hose connections. the new filter /housing you have in this vdeo is the wrong one for the LB7 you are working on.
True, I made it work by switching out the factory molded fuel line with the longer fuel line. It's been working now for quite a while.👍 Thanks for watching and commenting!
I do not trust the dorman product.
Great video