I had the same problem with my 05 Chevy Duramax. The dealership fixed the issue under my extended warranty that I purchased when buying the used truck. I can’t remember how much they charged but it was definitely a lot more than what you paid. I didn’t have the knowledge of knowing which injector was bad or even how to find it! Thanks for sharing this video. My truck runs great now. It’s been two months now and counting. I only had 128K miles on it when the harness went bad & only had the truck for two weeks.
Yep. Sounds bad. Bad power loss. Keps happening to me a couple times today. Im about to change the connector too. It's been going on for about 2 years intermittently. I kept it snug with two zipties in an X pattern, and one zip tie around the middle of the connector to keep the other two from slipping off from heat.
My 04 gmc duramax 2400hd just left me stranded again with knocking sound. This time it would barely run 10 or 15 mph. Twice before it would run a little better and the problem was the injector harness for #2 and 7. This time it was the injector control module. It's just passed 300,000 miles now. We bought the truck in '08 with 107,000 miles. It's the newest vehicle I've ever bought. It's awesome for towing on the road, but I miss the straight front axle for off road.
My truck is doing the exact same thing right now. 05 LLY, Cylinder number 1. P0301 and P01223 codes. It comes and goes and makes me want to punch someone in the throat. It starts on the highway between like 50 and 65. Runs like shit and starts coughing. Thanks for the info. I have some work to do. I don't think Cylinder 1 comes out at a 90 but the last month has been frustrating as hell.
Duder this just happen to me on the Interstate last night, not fun. I'm doing both Injectors can't be having that again. Imagine if you were towing when this happens..
im having crank no start. 2004.5 lly banks air box, ecotune carb approved, dynoflow cat back. 210000 mi. west coast original owner. not fuel filter, not prime issue. ficm test pass. possible wireing issue? any thoughts would be appriciated. Thanks brothers
hello i have 04.5 Duramax sounds the same and when i started it back up next day did the same ran good for 30 seconds ran a test on it came up fuel injector # 2 control circuit malfunction auto zone printed out paper it said replace fuel injection module (FIMC) i am currently in pickle on disability and i must try to fix myself for as little as possible do you recommend doing the same thing you did because i read where someone replaced the FIMC and it went bad with in a month because the wires on the injector were wore threw and causing a grounding issue . thank you for any advice you have for me i have 219,000 miles always took care of it no mods . i can send you my # it's easier since i don't have social media and can barely use computer haha , love your video and thankful for guys like yourself that do this to help others .
Right on the money! Mine went out in Baja. Not many, if any, Duramax specialists down here. This is my exact problem and you saved me a ton of hassle, time and money. Now i just have to figure out how to get these cheap harnesses down here in mehicooooo 😂🤣. Least of my problems. Muchos gracias!
Is it possible for the connector to go out after you change it. I have a truck I purchased. It looks like the connector was changed ones already. Looks like it might have been done at the dealer But it’s doing this same thing again.
@@JWMontoya I found out it was done 4 years and only about 10k miles. Done at the dealer. I am about 90% it’s the connector. I can get it to act up by moving the wires on it.
My lly gave me more than 30 codes for sure.. I just stopped going after I saw so many... I was wondering if yours did. I recently changed my ficm, injector harness. But as the harness is OG. Could it be injector 2 or 7? Because it sounds exactly like yours
My LLY is doing this, however it’s reading codes p0202, p0203, p0205, p0208, p2149. Would this even be related to harness 2 or 7? Or possibly the ficm? Wiring harness to ficm?
@@JWMontoya My FICM harness by the alternator looked fine, so I tried the “ice pick” fix on injector 2s harness. Fixed the issue, and I ordered the new harness. I read online that injectors 2,3,5,8 are linked together and if one has an issue it’ll throw out the others? Let me know if you figure out why it’s throwing these codes incase mine does it again.
Thanks for that bit of info. Never knew about that issue on LLYs. I am yet to have that problem on my LLY and I am over 200. Ty sir. You should look into the FASS lift pump. I love mine. I even by passed the OEM filter. Great looking truck brother.
I should have done this 2 months ago (when I watched this the first time). I even ordered the connector, and it's been in the truck since then. But I found a shorted wire, and thought I'd fixed it. Tomorrow, I'm putting it in. Nice video, and the music is great. One question, though- was that a pain in the ass to crimp those fittings down in that hole? tomorrow I guess I'll know. Thanks for the help, man.
What code did it run mines says 87 mines number 2 and 7 but mine is thumping not ticking and I don't have power loss just cuts out under heavy throttle
Buy your replacement AC delco harness here: amzn.to/3vNzkXq
Thanks, will do, ill check back and report on results.
I had the same problem with my 05 Chevy Duramax. The dealership fixed the issue under my extended warranty that I purchased when buying the used truck. I can’t remember how much they charged but it was definitely a lot more than what you paid. I didn’t have the knowledge of knowing which injector was bad or even how to find it! Thanks for sharing this video. My truck runs great now. It’s been two months now and counting. I only had 128K miles on it when the harness went bad & only had the truck for two weeks.
Yep. Sounds bad. Bad power loss. Keps happening to me a couple times today. Im about to change the connector too.
It's been going on for about 2 years intermittently. I kept it snug with two zipties in an X pattern, and one zip tie around the middle of the connector to keep the other two from slipping off from heat.
I'm getting ready to install a LLY 2005-6 in place of a LMM 2009. Thank You for sharing and You're really doing a fantastic Job..
Great Job 👍
Truck Master thanks bud!
i have not obd2 yet, im working on that so im throwing darts at this point. will test as soon as i can. will report then. by bad
That knock on your duramax reminds me of Fords. They sound pretty similar to that.
that proves that Fords are always broken!
DreamK sweet sounds of v8s not like a farm tractor i6s
You’re a god send. On the side of the Nevada desert highway in 100 degree heat thinking I blew my motor. This was it!
Glad it helped!
My 04 gmc duramax 2400hd just left me stranded again with knocking sound. This time it would barely run 10 or 15 mph. Twice before it would run a little better and the problem was the injector harness for #2 and 7. This time it was the injector control module. It's just passed 300,000 miles now. We bought the truck in '08 with 107,000 miles. It's the newest vehicle I've ever bought. It's awesome for towing on the road, but I miss the straight front axle for off road.
My 2004 LLY did that to me about 2 years ago. Bought all 8 plugs on amazon but just did the “ice pick” method and it’s worked great so far.😂
Paul Wolfe I just went ahead and replaced mine bc I'm paranoid lol
What’s the ice pick method?
My truck is doing the exact same thing right now. 05 LLY, Cylinder number 1. P0301 and P01223 codes. It comes and goes and makes me want to punch someone in the throat. It starts on the highway between like 50 and 65. Runs like shit and starts coughing. Thanks for the info. I have some work to do. I don't think Cylinder 1 comes out at a 90 but the last month has been frustrating as hell.
Stupid question but what color wire is what I can't find it anywhere online and I cut plug off without making
What is part number for the pigtail
Duder this just happen to me on the Interstate last night, not fun. I'm doing both Injectors can't be having that again. Imagine if you were towing when this happens..
just checked out, looks like a plug, ill try, my concern is a 20 year old wire loom failing. your thoughts sir?
It’s good to use oe brands especially acdelco
Get your interior reupholstered! Truck deserves it !!! 🍄
Puchito puchito I will eventually!
Is this the same part number for a 2010 lmm?
im having crank no start. 2004.5 lly banks air box, ecotune carb approved, dynoflow cat back. 210000 mi. west coast original owner. not fuel filter, not prime issue. ficm test pass. possible wireing issue? any thoughts would be appriciated. Thanks brothers
i have something like that....mine has no power knocking BAD....but no codes. any ideas or heard of anything?
Pick on the pigtail with something sharp, it’ll get you by for now
hello i have 04.5 Duramax sounds the same and when i started it back up next day did the same ran good for 30 seconds ran a test on it came up fuel injector # 2 control circuit malfunction auto zone printed out paper it said replace fuel injection module (FIMC) i am currently in pickle on disability and i must try to fix myself for as little as possible do you recommend doing the same thing you did because i read where someone replaced the FIMC and it went bad with in a month because the wires on the injector were wore threw and causing a grounding issue . thank you for any advice you have for me i have 219,000 miles always took care of it no mods . i can send you my # it's easier since i don't have social media and can barely use computer haha , love your video and thankful for guys like yourself that do this to help others .
Did this happen to you out of nowhere or did you have a warning my truck sounds just like that but happed out of nowhere and had a lack of power
Right on the money! Mine went out in Baja. Not many, if any, Duramax specialists down here. This is my exact problem and you saved me a ton of hassle, time and money. Now i just have to figure out how to get these cheap harnesses down here in mehicooooo 😂🤣. Least of my problems. Muchos gracias!
sometimes autozone or orileys have them in stock! I'm glad it helped
Good fix. Glad it was easy. Get that seat cover replaced. 108$ off eBay or amazon, leather exact fit and color.
Mile High DURAMAX link??
Where did you get your white out grill?
Plasti dip
Is it possible for the connector to go out after you change it. I have a truck I purchased. It looks like the connector was changed ones already. Looks like it might have been done at the dealer But it’s doing this same thing again.
Yeah it can. It also could’ve been a cheap connector
@@JWMontoya thanks.
@@JWMontoya I found out it was done 4 years and only about 10k miles. Done at the dealer. I am about 90% it’s the connector. I can get it to act up by moving the wires on it.
My lly gave me more than 30 codes for sure.. I just stopped going after I saw so many... I was wondering if yours did. I recently changed my ficm, injector harness. But as the harness is OG. Could it be injector 2 or 7? Because it sounds exactly like yours
Just ordered a 4 pack of connectors for 14 dollars. We’ll see if it’s any good
You should get a BlackVue front and rear dash cam for proof and protection.And you should reupholster those torn seats.
Much oblige for info .... Try using the KISS method, hope U get it
What is the first song name?
Mines doing the same thing right now and its had #2 and #7 just replaced and still doing it. Not sure where to go from here
Try replacing number one cylinder
What was it? Mine #2 #7 have been replaced too
Ice pic them all
My LLY is doing this, however it’s reading codes p0202, p0203, p0205, p0208, p2149. Would this even be related to harness 2 or 7? Or possibly the ficm? Wiring harness to ficm?
This is my video from 3 years ago. My new LLY actually threw all those codes as well. Trouble shooting it rn
@@JWMontoya My FICM harness by the alternator looked fine, so I tried the “ice pick” fix on injector 2s harness. Fixed the issue, and I ordered the new harness. I read online that injectors 2,3,5,8 are linked together and if one has an issue it’ll throw out the others? Let me know if you figure out why it’s throwing these codes incase mine does it again.
hey man... thanks for the vid... also, love the forearm tat..
Thanks for that bit of info. Never knew about that issue on LLYs. I am yet to have that problem on my LLY and I am over 200. Ty sir. You should look into the FASS lift pump. I love mine. I even by passed the OEM filter. Great looking truck brother.
Lance Williams no problem! Looking into getting a lift pump now
Glad you got it fix always nice when you can do it yourself
How do I know if I have an LLY Duramax? My truck is a 2005 2500 HD
Yours is LLY. 04.5- 05 is LLY
Always good when you can fix yourself and don’t have to go to the stealership. Have to do a lift pump and protect your injectors!
James Batdorf oh I plan on it!
How did you figure out which connector it was?
Typically it’s 2 and 7. I unplugged #2 and saw where the connection was loose
My truck did that exact same thing. It cost me 750 at the shop to have it fixed.
How many miles are on the truck
Carson Becker I think I said it in the video. Around 160k
JW Montoya okay thanks sorry I must have missed it
I should have done this 2 months ago (when I watched this the first time). I even ordered the connector, and it's been in the truck since then. But I found a shorted wire, and thought I'd fixed it. Tomorrow, I'm putting it in. Nice video, and the music is great. One question, though- was that a pain in the ass to crimp those fittings down in that hole? tomorrow I guess I'll know. Thanks for the help, man.
Sorry for the late response! It was kinda pain in the butt but just be patient
Crimp?? Don’t crimp. Solder them if you want it to last and not get moisture in them.
I would have pooped my pants when I heard that
Whats up buddy another great vid
Manny M appreciate it!
Keep up the awesome vids
Hunter Cseledy thanks bud!
What code did it run mines says 87 mines number 2 and 7 but mine is thumping not ticking and I don't have power loss just cuts out under heavy throttle
One Man With A Tractor check out the video before their one and I believe it's in there
Good job
Yep, Duck tapes works just fine. Lol
CAT fuel filter Adapter!!!!!!!!!!!!!! DO IT!!!
No don't..delete it..
Do the fass 150 and delete stock filter head
Dont make 150's anymore...i thought mine was,cause that is what I bought..talking to Fass guys...the 150's are actually putting out 165 gph
Save the Cat filter for the fuel side of the Fass!!
Sounds like my old kubota tractor
You just saved me money I thought I had to replace the whole ac or something else was wrong lol
Jesus dude. Invest some money into the performance of your truck instead of the “looks” of your truck. Lol
What do you suggest?!