OMG my stomach has been in knots for a couple days thinking about the cost. As many have commented here, you are our hero. Thank you for making this video, would love to donate to your cause of choice. Thank you again. Jerry R So Cal California 07 Mega Cab 5.9 4x4 smarty Jr, Banks horn, AFE exhaust manifold 5” straight exhaust.
I can't tell you how much I appreciate you making this video. I had no idea it sounded like somebody was inside of my engine hitting it with a hammer really fast. I treated it like a hot soak in the injectors with Lucas main line that in through the fuel filter. You saved my arse brother thank you so much
I've driven commercial trucks for 21 years and followed their rules, fix only whats broken. I know others recommmend replacing all, assuming if one is bad the others are soon to follow. If they were difficult to access then I would replace all, it makes sense. These are easy access and easy to replace, so just one at a time.
I don't blame you there, i don't know if yours cost the same but they're from 2 to 400 around here for oem and your suppose to replace the cup and quill at the same time on my 2012 6.7 cummins the cups are $50 each and haven't got price on quill yet. If it ain't broke don't fix it. And they're easy to get too except number 6 being so far under the firewall.
Joel your my hero I just finished replacing my injectors the knock is gone she runs better, I just finished a 20 mile test run she runs and sounds fantastic. I was just getting ready to pull the hood off and start pulling the engine, but I just couldn't believe it was a blown engine so a got back on the TH-cam and ran across your video went out to test it and it was injector so thanks again and my wallet thanks you. Rick
Good to know! FWIW I started to have an injector issue on my 04 5.9 with 200k miles. I ran a couple tanks of fuel with Stanadyne Injector cleaner through it and the problem seems to be gone and it's running smoother than it has in a long time. Prior to that I ran Power Service in my fuel most of the time at the minimum rate. I had no idea an injector could sound like a rod knock.
Number 1 injector failed. The sound was most likely from deadheading the fuel to an injector the wouldn't open. Replacing the injector solved the issue.
Joel Harrison the lift rod should be tight and snug with the valve push rod arm theres a lock nut unscrew it and lower it til it is flush with the push rod then tighten the living hell out of the lock nut should be fine unless you have other problems such as a bent or warn out push rod then replace those trust me it’s unhealthy for the truck and it will save you alot more in the long run too
You sure as hell got me thinking my injector/s are shot. I thought I may have had a bad bearing but the thing about it is it doesn’t knock all the time, only when the truck warms up. I know a bearing would knock all the time and not some time. Thanks again🫡
this is the best video ever uploaded on to this website. I don't own a truck, but I want to now that I know how to solve this problem. thank you so much, sir.
Just wanted to say thanks my truck has been down for over a month now 06 5.9 and I had the same issue and I used your method and it worked for me and helped me verify witch injector is bad
I don't use a shop for anything unless there is expensive equipment required. I can't recommend anyone. These are not overly complicated engines. You can fix just about anything yourself, with minor help from dealers regarding computer resets and updates.
I never used a shop either but ever since I got hit on my motorcycle by an SUV my body is getting worse. I can't stand very long anymore so unfortunately I had to have a shop pick up my 03 Ram for the same noise as yours. I really hate to think what this is gonna cost me with being on disability the money is thin if ya know what I mean. I'll have to check in on getting one of those truck creepers that you lay on while working in the engine bay. I'll just have to save up for it that way I can do everything myself again. Thanks for the informative video and Thank you for your service!!!
Great diagnosis on her, mine on my 04 are still testing good but have been thinking hard about replacing them before they fail. Close to 200,000 on it with tuner. Been a great truck
Thanks for taking the time to show your diagnostic technique , have a bit different problem but i think is injector related and this helped. Did you only replace the injector on #1 ? or did you decide to replace the entire set .
Great diagnosis brother, my 6.7 is making the exact same sound. Did you happen to take notice if it knocked louder and faster when on the throttle? Mine does knock faster and louder when on the throttle. I have watched a few videos and the guys are not stating whether or on not if it was. I have a feeling mine is a bearing.
Top video, I have a little European diesel which cut out while driving and made an exact same noise. I feared the worse but after watching this i checked my injectors and voila!!! car cured. Really informative video!!!
Thank you so much!! Your video IS appreciated!! I have 2003 5.9 24V longbed 2WD dually 229K miles; yesterday truck was racked and I was underneath with the guy showing me blowby out bottom hose drain and crankshaft endplay!? Mine is knocking but not anything like yours! On acceleration I have sensed what I think is wrist pins but probably isn't knowing what I know now. I was told needed rear main journal bearing & seal; mine is slightly seaping. Months ago my MPG dropped by 10; previously she did 19.1 real MPG. I don't have money and this RAM ordeal is devastating quaqmire because it jeopardizes our lifestyle and survivability (18,500 lbs 5th wheel trailer). If my engine dies about all I can do is junk it. Can't afford to redo motor, front end needs full redo (i redid all front end 4 years ago), dashboard defrost control don't work (that's $1000 dealer job) I can't work on my truck where i live (then there is THAT) new oil, motor starts and runs like a clock, i drive 1800 to 2500 rpm most of time regardless of gear. Apparently my RAM does NOT have knock sensor, am bewildered what to do. I bought mine with 209K miles and it came with new injectors so 30,000 miles i surely could use injector(s) and/or maintenance. I run Lucas in the fuel every other tank or further. Friend told me to drain 2 quarts oil and put 2 quarts Lucas oil treatment in and sell the truck! Jeez the b.s. lives forever! Thank You again for your video. I appreciate You!!
Hey @Joel Harrison my '02 5.9 just threw the first injector as well. Your step by step video was perfect, thank you for your time! Semper Fi Edit: liked the video, hope to see more!
Fantastic video! Really appreciate you taking the time to help the community. By the way, I can tell you are military trained, and given my experience in the aviation community, my thinking is you may be a pilot? Many thanks again, I am doing some in-depth study on my 2003 5.9 and came across your content. All the best.
Thank you for the video Joel. Very informative. Hey I was just curious on how I would go about troubleshooting my injectors? Do I need a special tool, gauge etc? I have a “valve tap” like noise going on with my 6.7 but only under load or heavy acceleration. The gentleman I got it from said he replaced the injectors but not the lines if that makes any sense? It also starts hard and after it’s warmed up if you shut it off and try to start it back up it’s even harder to start. I’m still kind of a noob with these trucks so I’m just searching for a direction to go with it to try and troubleshoot the issue myself (maybe known problems to look for etc). Any help would be greatly appreciated!
Wow, your video is awesome!, I just had this same issue happen today and I will be checking my injectors tomorrow, my truck sounds the exact same so this gives me hope
This same noise happened to my 2003 5.9 was at auto parts came out fired it up and there was my knock so truck has been sitting since April tomorrow I'll do the same test, thank you so much for video will reply back if that was the problem. Rick
Thanks for the video,sounded just like a rod knock,but it was just one bad injector; i thought it was just dumping fuel in,due maybe to a broken spring,inside the injector,but you say it might have been the opposite ? you say the injector was *not* opening? how could it knock like that then,if no fuel was being injected ? don't get it;
I recently purchased my first Cummins...its a 1989 d350..brought it home changed the fuel filter and oil. A few days later noticed the same sound as yours but it goes away after the engine warms up...hope mine is as simple to fix as yours...thanks!!!
Great video. I have a 5.9 as well. Glad I am still able to learn something new each day. On hearing your engine I cringed thinking bearing bottom end. I was wrong..Thank you
beautiful! same problem on a dump truck im working on already doing the injectors because of a miss! Old Mechanic thought it was a rod knock or the crank bearing giving out hopefully it will be as simple as an injector!
I have my recently purchased 2012 6.7 cummins in the shop, just had head gasket done. Previous owner used it as work truck for his business. Radiator had a hole and he kept adding water. A in doing so ran it hot several times. Put radiator and water pump in it but it was to late. Shop sent head off to Napa they shaved .005 of an inch off it. Thursday night the mechanic got it put back together and tried starting the truck. Killed the starter. So Friday gets new starter. Truck fires up and sounds good for about 5 seconds. Next several hours truck won't start. Mechanics cracking fuel lines and getting alot of air and foam. He kept cracking the lines over and over for about 2 hours. He then shot some ether into intake and truck fires up, but is knocking it's ass off. And i mean it was knocking loud, amplify your sound by 100 and that's what i was hearing. The truck wouldn't stay running unless he spritzed it with ether. Which i wasn't happy about. Heard to many horror stories the intense heat melting a cylinder with ether. Anyway the mechanic tells me it's an injector. This mechanic is the go to in our area for diesel engines. He's got a very good reputation that he's built. I just hope he's right with it being the injector. Because the knock was so loud. And i drove the truck the day i had it towed up to his shop. I'll know tomorrow if he's right that's when the new $400 injector from dodge will be in. Oh and my truck has 196k miles on it. Was bone stock, and i wanted it put back that way and he said my egr was shot. So he offered to delete it for free for taking so long working on the truck. I just had to buy a tuner and cold air intake.
Thanks for the video. Mine has been making a similar noise although not as bad and the knock doesn't sound like metal. But it is definitely something associated with that area. I thought maybe valve rockers but this might be something simple to check first. No codes but that doesn't mean there is no issue. I did have to replace one of the injectors recently. Maybe I got another one getting ready to go on me. Thanks for the information.
I had a very mild injector knock, like yours, just barely noticeable though, with a mild bit of white smoke...paid dodge $150 to diagnose, and the said all injectors were good, but needed a valve adjust. Took it home, adjusted the valves, didn't go away. Then I replaced all the injectors (#6 is a bear to change) and that fixed the issue along with a ton of gained power.
Thank you brother that was very helpful very very helpful you don't know how much I appreciate you God bless you bro I thought it was an engine that was done I checked as you said it was fuel injector number thank you so much 👍🏼👏🏼👏🏼👏🏼💪🏼😊
A reasonable assumption the injector is it seems over fueling the cylinder (leaking fuel) or firing too soon. There is also the fact that not hooked up, it is not firing, so combustion pressure is not developing in that cylinder, some rod knocks will go away when the cylinder does not fire.
07 2500 6.7 lost power had knock, had towed to dealer, dealer replaced crankcase filter got power back and knock went away this was in April now power loss and knock is back and doesnt want to idle... Replaced filter again and cleaned EGR system. Now wondering if it injectors. Any other ideas as well??? Oh and no codes coming up help starting to hate this truck
ALSO IN DENVER WHATS THE PLACE CALLLED? I need my injectors tested! Just dropped 12k on an 03. Was driving it home 5 hours away. when i gave her alot of throttle about 70 mph noise lessened let pf just a bit and noise kncoked. On and off on and off. Pulled over immediately heard a misfire on and off not too bad so i just drove it home. The noose is there then goes away definitely an injector going bad
I have the same problem but I got all the injectors rebuild but still having the same problem and the engine is shaking and smoking white smoke what could it mean
Power Motive, in Denver, is a Bosch certified test station. The injectors were manufactured by Bosch for Cummins, so I consider myself lucky to have that resource close to home. The fuel should atomize when the injector fires from six holes per injector. If it doesn't atomize, it won't burn.
I got the same knock.. Except mine smokes with it. Think I might have 2 out i did that disconnect thing on all 6...still happens. Think its BC the rail still dumping fuel
Thank you very much. I have a 06 Cummins that has the same knock and it started doing it after I put injector cleaner in the fuel. Injectors are getting tested. But after this video I believe injectors are my problem
My truck shut down at 70... pulled injectors and it will only turn one maybe two turns than stop. This happens consistently. Doesn’t stop on any certain cylinder or valve. I’ve had people say head job, ecm, pcm, starter ect. Any help is much appreciated
Yes sir.. i believe it i had a bad miss so tried to limp it to a shop then it started banging hard like bent rod i had a buddy pull me with a half ton just a few miles and i put it in gear while being pulled and there wasn't a knock so knew it had to be an injector problem which it was at first then pressured up the fuel pump and that was trashed to. Put all new injectors in and a new injection pump and it runs like new again.
Hi harry i have the same sound after replace my 6 injector and sound come front cyl 1 you can feel on the injector fuel line i gonna try you videos two see if the sound go away i am worry that sonthing is bad on the engine thanks for you video help a lot
I have a 2006 dodge Cummins 5.9 this video really helps me because I had old injectors and my truck didn't make this kind of noise before I just replaced all 6 injectors the truck fired right up however I got the same knock and didn't know where it would be I'm gonna try this and see if it helps thanks
glad yours was an injector....if any of you have that knock with no miss and lots of blowby ,and the knock doesn't go away after kill testing injectors ....probably collapsed ,galled ,scored,piston... fixing 1 like that now .
I had no idea an injector could cause a noise like that. Very good video.
OMG my stomach has been in knots for a couple days thinking about the cost. As many have commented here, you are our hero. Thank you for making this video, would love to donate to your cause of choice. Thank you again. Jerry R
So Cal California
07 Mega Cab 5.9 4x4 smarty Jr, Banks horn, AFE exhaust manifold 5” straight exhaust.
I can't tell you how much I appreciate you making this video. I had no idea it sounded like somebody was inside of my engine hitting it with a hammer really fast. I treated it like a hot soak in the injectors with Lucas main line that in through the fuel filter. You saved my arse brother thank you so much
I've driven commercial trucks for 21 years and followed their rules, fix only whats broken. I know others recommmend replacing all, assuming if one is bad the others are soon to follow. If they were difficult to access then I would replace all, it makes sense. These are easy access and easy to replace, so just one at a time.
I don't blame you there, i don't know if yours cost the same but they're from 2 to 400 around here for oem and your suppose to replace the cup and quill at the same time on my 2012 6.7 cummins the cups are $50 each and haven't got price on quill yet. If it ain't broke don't fix it. And they're easy to get too except number 6 being so far under the firewall.
Joel your my hero I just finished replacing my injectors the knock is gone she runs better, I just finished a 20 mile test run she runs and sounds fantastic. I was just getting ready to pull the hood off and start pulling the engine, but I just couldn't believe it was a blown engine so a got back on the TH-cam and ran across your video went out to test it and it was injector so thanks again and my wallet thanks you. Rick
Good to know! FWIW I started to have an injector issue on my 04 5.9 with 200k miles. I ran a couple tanks of fuel with Stanadyne Injector cleaner through it and the problem seems to be gone and it's running smoother than it has in a long time. Prior to that I ran Power Service in my fuel most of the time at the minimum rate.
I had no idea an injector could sound like a rod knock.
Same knocking noise is on my truck I can’t believe is so simple thank you my friend you save me a lot of money
Highest quality DIY on TH-cam. Thank you.
Far greater men than I have served. I owe it to them and it was an honor to do so.
Thank U 4 your service brother
Thanks for your help I have the same noise & have an injector on the way
Number 1 injector failed. The sound was most likely from deadheading the fuel to an injector the wouldn't open. Replacing the injector solved the issue.
Joel Harrison Great info glad to hear that fixed it. Thanks for the lesson 👍
Does deadheading mean the fuel is getting to the injector but not going through it???
So did you replace it and found it went away? Did you damage anything due to the injector being bad?
Joel Harrison the lift rod should be tight and snug with the valve push rod arm theres a lock nut unscrew it and lower it til it is flush with the push rod then tighten the living hell out of the lock nut should be fine unless you have other problems such as a bent or warn out push rod then replace those trust me it’s unhealthy for the truck and it will save you alot more in the long run too
Joel do you know of a good shop for a 99 Cummins 3500. I'm in Denver.
You sure as hell got me thinking my injector/s are shot.
I thought I may have had a bad bearing but the thing about it is it doesn’t knock all the time, only when the truck warms up. I know a bearing would knock all the time and not some time. Thanks again🫡
this is the best video ever uploaded on to this website. I don't own a truck, but I want to now that I know how to solve this problem. thank you so much, sir.
Just wanted to say thanks my truck has been down for over a month now 06 5.9 and I had the same issue and I used your method and it worked for me and helped me verify witch injector is bad
Odd question. The motor looks great, what oil do you run and how often do you change it? Thank you for your service sir!
I don't use a shop for anything unless there is expensive equipment required. I can't recommend anyone. These are not overly complicated engines. You can fix just about anything yourself, with minor help from dealers regarding computer resets and updates.
I never used a shop either but ever since I got hit on my motorcycle by an SUV my body is getting worse. I can't stand very long anymore so unfortunately I had to have a shop pick up my 03 Ram for the same noise as yours. I really hate to think what this is gonna cost me with being on disability the money is thin if ya know what I mean. I'll have to check in on getting one of those truck creepers that you lay on while working in the engine bay. I'll just have to save up for it that way I can do everything myself again. Thanks for the informative video and Thank you for your service!!!
All information is awesome thanks for you efforts keep going
Great diagnosis on her, mine on my 04 are still testing good but have been thinking hard about replacing them before they fail. Close to 200,000 on it with tuner. Been a great truck
I have a random noise which comes and goes which sounded just like what you encountered. Thanks for taking the time to document.
Thanks for taking the time to show your diagnostic technique , have a bit different problem but i think is injector related and this helped.
Did you only replace the injector on #1 ? or did you decide to replace the entire set .
I'm all in at "if you don't like it, I don't care". Awesome.
Great diagnosis brother, my 6.7 is making the exact same sound. Did you happen to take notice if it knocked louder and faster when on the throttle? Mine does knock faster and louder when on the throttle. I have watched a few videos and the guys are not stating whether or on not if it was.
I have a feeling mine is a bearing.
Great video and big help with troubleshooting... thanks for posted.... The opening felt like I was at Commander’s Call ha..
Top video, I have a little European diesel which cut out while driving and made an exact same noise. I feared the worse but after watching this i checked my injectors and voila!!! car cured. Really informative video!!!
Thank you so much!! Your video IS appreciated!! I have 2003 5.9 24V longbed 2WD dually 229K miles; yesterday truck was racked and I was underneath with the guy showing me blowby out bottom hose drain and crankshaft endplay!? Mine is knocking but not anything like yours! On acceleration I have sensed what I think is wrist pins but probably isn't knowing what I know now. I was told needed rear main journal bearing & seal; mine is slightly seaping. Months ago my MPG dropped by 10; previously she did 19.1 real MPG. I don't have money and this RAM ordeal is devastating quaqmire because it jeopardizes our lifestyle and survivability (18,500 lbs 5th wheel trailer). If my engine dies about all I can do is junk it. Can't afford to redo motor, front end needs full redo (i redid all front end 4 years ago), dashboard defrost control don't work (that's $1000 dealer job) I can't work on my truck where i live (then there is THAT) new oil, motor starts and runs like a clock, i drive 1800 to 2500 rpm most of time regardless of gear. Apparently my RAM does NOT have knock sensor, am bewildered what to do. I bought mine with 209K miles and it came with new injectors so 30,000 miles i surely could use injector(s) and/or maintenance. I run Lucas in the fuel every other tank or further. Friend told me to drain 2 quarts oil and put 2 quarts Lucas oil treatment in and sell the truck! Jeez the b.s. lives forever! Thank You again for your video. I appreciate You!!
Hey @Joel Harrison my '02 5.9 just threw the first injector as well. Your step by step video was perfect, thank you for your time! Semper Fi
Edit: liked the video, hope to see more!
No wonder why I wanted a Cummins out of the Marine Corps, all of my brothers are getting them haha. Semper Fi
Fantastic video! Really appreciate you taking the time to help the community. By the way, I can tell you are military trained, and given my experience in the aviation community, my thinking is you may be a pilot?
Many thanks again, I am doing some in-depth study on my 2003 5.9 and came across your content. All the best.
Thank you for the video Joel. Very informative. Hey I was just curious on how I would go about troubleshooting my injectors? Do I need a special tool, gauge etc? I have a “valve tap” like noise going on with my 6.7 but only under load or heavy acceleration. The gentleman I got it from said he replaced the injectors but not the lines if that makes any sense? It also starts hard and after it’s warmed up if you shut it off and try to start it back up it’s even harder to start. I’m still kind of a noob with these trucks so I’m just searching for a direction to go with it to try and troubleshoot the issue myself (maybe known problems to look for etc). Any help would be greatly appreciated!
Thanks for the sharing this great video. It certainly has led me to resolving my diesel knocking issue with my Mazda BT50 WL engine.
any update brother? im assuming it worked out fine!
I am his son. The truck is still running strong. 330k on the clock currently
Wow thanks for the great tips on trouble shooting going to be very helpful if I run into the same trouble
Very helpful video! thanks, now i know a knock isn't always a bad bearing! injectors shot!
One injector in 280k miles. Seems fair.
If one fails, aren't all the injectors at the end of the line?
Cheers
@Joel Harrison - Were you experiencing smoke out the tailpipe?
Thanks for taking the time to put this on it helped finding something to try before spending $$ at the shop
Was there white smoke coming from the exhaust with this knocking?
Excellent video!!! Waiting for the follow up.
When’s the next video!!???
Thanks for the step by step video. Very well done.
Wow, your video is awesome!, I just had this same issue happen today and I will be checking my injectors tomorrow, my truck sounds the exact same so this gives me hope
Great video I liked how you presented the problem and showed the steps on how to check. 👍
Joel thanks for the video my 05 did the same thing yesterday so have some where I can go from . Thank you again
I liked the video and would definitely watch many more of yours very helpful informative and professional
This same noise happened to my 2003 5.9 was at auto parts came out fired it up and there was my knock so truck has been sitting since April tomorrow I'll do the same test, thank you so much for video will reply back if that was the problem. Rick
Thanks for the video,sounded just like a rod knock,but it was just one bad injector; i thought it was just dumping fuel in,due maybe to a broken spring,inside the injector,but you say it might have been the opposite ? you say the injector was *not* opening? how could it knock like that then,if no fuel was being injected ? don't get it;
I recently purchased my first Cummins...its a 1989 d350..brought it home changed the fuel filter and oil. A few days later noticed the same sound as yours but it goes away after the engine warms up...hope mine is as simple to fix as yours...thanks!!!
Great video. I have a 5.9 as well. Glad I am still able to learn something new each day. On hearing your engine I cringed thinking bearing bottom end. I was wrong..Thank you
When you did the kill test and loosened one nut on each injector did you disconnect the batteries or anything before loosing them?
beautiful! same problem on a dump truck im working on already doing the injectors because of a miss! Old Mechanic thought it was a rod knock or the crank bearing giving out hopefully it will be as simple as an injector!
I have my recently purchased 2012 6.7 cummins in the shop, just had head gasket done. Previous owner used it as work truck for his business. Radiator had a hole and he kept adding water. A in doing so ran it hot several times. Put radiator and water pump in it but it was to late. Shop sent head off to Napa they shaved .005 of an inch off it. Thursday night the mechanic got it put back together and tried starting the truck. Killed the starter. So Friday gets new starter. Truck fires up and sounds good for about 5 seconds. Next several hours truck won't start. Mechanics cracking fuel lines and getting alot of air and foam. He kept cracking the lines over and over for about 2 hours. He then shot some ether into intake and truck fires up, but is knocking it's ass off. And i mean it was knocking loud, amplify your sound by 100 and that's what i was hearing. The truck wouldn't stay running unless he spritzed it with ether. Which i wasn't happy about. Heard to many horror stories the intense heat melting a cylinder with ether. Anyway the mechanic tells me it's an injector. This mechanic is the go to in our area for diesel engines. He's got a very good reputation that he's built. I just hope he's right with it being the injector. Because the knock was so loud. And i drove the truck the day i had it towed up to his shop. I'll know tomorrow if he's right that's when the new $400 injector from dodge will be in. Oh and my truck has 196k miles on it. Was bone stock, and i wanted it put back that way and he said my egr was shot. So he offered to delete it for free for taking so long working on the truck. I just had to buy a tuner and cold air intake.
Thanks for the video. Mine has been making a similar noise although not as bad and the knock doesn't sound like metal. But it is definitely something associated with that area. I thought maybe valve rockers but this might be something simple to check first. No codes but that doesn't mean there is no issue. I did have to replace one of the injectors recently. Maybe I got another one getting ready to go on me. Thanks for the information.
Was there smoke coming out of the breather tube on the bottom side?
May i ask what the ticking noise is when you turn the key, i have that noise on my truck and im really confused
I had a very mild injector knock, like yours, just barely noticeable though, with a mild bit of white smoke...paid dodge $150 to diagnose, and the said all injectors were good, but needed a valve adjust. Took it home, adjusted the valves, didn't go away. Then I replaced all the injectors (#6 is a bear to change) and that fixed the issue along with a ton of gained power.
Did the engine run smooth when you accelerated with the bad injector?
Description says 2nd gen, it's a 3rd gen. Semper Fi!
Thanks for your video. It did help me to know the problem.
Well done Sir, conventional common sense troubleshooting.
Great video in DIY diagnostics
Have this identical rap in my motor on passenger side . Found it with my mechanic stethoscope of all things.
Thank you brother that was very helpful very very helpful you don't know how much I appreciate you God bless you bro I thought it was an engine that was done I checked as you said it was fuel injector number thank you so much 👍🏼👏🏼👏🏼👏🏼💪🏼😊
A reasonable assumption the injector is it seems over fueling the cylinder (leaking fuel) or firing too soon. There is also the fact that not hooked up, it is not firing, so combustion pressure is not developing in that cylinder, some rod knocks will go away when the cylinder does not fire.
Thank you Joel for the video. I never heard a bad injector b4. Now I know
Does it matter which side of the wire you disconnect?
Thank you sir for your time and video and thank you for your service sir.
Great video especially for your first one. Having a similar problem so I’m gonna try this out. Thanks!
Great video big help! Thank you for your service RTLW
What was the problem? Did the injector fix it?
Did you just take one wire off or both ?
07 2500 6.7 lost power had knock, had towed to dealer, dealer replaced crankcase filter got power back and knock went away this was in April now power loss and knock is back and doesnt want to idle... Replaced filter again and cleaned EGR system. Now wondering if it injectors. Any other ideas as well??? Oh and no codes coming up help starting to hate this truck
ALSO IN DENVER WHATS THE PLACE CALLLED? I need my injectors tested! Just dropped 12k on an 03. Was driving it home 5 hours away. when i gave her alot of throttle about 70 mph noise lessened let pf just a bit and noise kncoked. On and off on and off. Pulled over immediately heard a misfire on and off not too bad so i just drove it home. The noose is there then goes away definitely an injector going bad
I have the same problem but I got all the injectors rebuild but still having the same problem and the engine is shaking and smoking white smoke what could it mean
Hey I just saw your video did changing the injector fix the knock
Great informative video! Thanks for sharing...👍
Hey Brother, I just had the exact same thing happen and thanks to your video I'm on top of the issue now 👍
Power Motive, in Denver, is a Bosch certified test station. The injectors were manufactured by Bosch for Cummins, so I consider myself lucky to have that resource close to home. The fuel should atomize when the injector fires from six holes per injector. If it doesn't atomize, it won't burn.
If it didn't atomized it burn with bang, bang, bang. That the noise you hear
Thanks so much. I have same issue on Early 04. Except with a ton of white smoke. So going to narrow things down after Christmas
Jeremy Strain what did you figure out with your truck? I’m on the side of the road rn with the same issue you described
@@Bill-in2fo I have the same problem.
What did you find?
Best video ever, very good and thank you 👍👍
I have a 2005 and it sounds just like your truck with the knocking. I will pull the wires to test it tomorrow. Thanks for the video.
I got the same knock.. Except mine smokes with it. Think I might have 2 out i did that disconnect thing on all 6...still happens. Think its BC the rail still dumping fuel
jays4forces still returning fuel so if u have a leak it will need either to start cuz it don't spin fast enough
Thank you for the video man,helped a lot!
Excellent video thank you
Thank you very much. I have a 06 Cummins that has the same knock and it started doing it after I put injector cleaner in the fuel. Injectors are getting tested. But after this video I believe injectors are my problem
Thanks for the great diagnostic video.
Thanks Joel! I really appreciate this video!
Sounded like money blowing in the wind and me banging my head on my windshield
what shop do you use in town im in Colorado as well
Thanks man you just fixed my problem
My truck shut down at 70... pulled injectors and it will only turn one maybe two turns than stop. This happens consistently. Doesn’t stop on any certain cylinder or valve. I’ve had people say head job, ecm, pcm, starter ect. Any help is much appreciated
Yes sir.. i believe it i had a bad miss so tried to limp it to a shop then it started banging hard like bent rod i had a buddy pull me with a half ton just a few miles and i put it in gear while being pulled and there wasn't a knock so knew it had to be an injector problem which it was at first then pressured up the fuel pump and that was trashed to. Put all new injectors in and a new injection pump and it runs like new again.
I didn't know you could start it with the valves exposed 👀
Why wouldn't it? The valve covers just... cover the valves. Prevents dirt from going in and oil from going out
@@andretsang7337 For some reason I thought it was just bad too
great information! thank you for doing this video!
Hi harry i have the same sound after replace my 6 injector and sound come front cyl 1 you can feel on the injector fuel line i gonna try you videos two see if the sound go away i am worry that sonthing is bad on the engine thanks for you video help a lot
Worse than a spun bearing?
Did it ever throw a code? And if so what code?
Wow, this is really helpful!
I have a 2006 dodge Cummins 5.9 this video really helps me because I had old injectors and my truck didn't make this kind of noise before I just replaced all 6 injectors the truck fired right up however I got the same knock and didn't know where it would be I'm gonna try this and see if it helps thanks
what was issue
glad yours was an injector....if any of you have that knock with no miss and lots of blowby ,and the knock doesn't go away after kill testing injectors ....probably collapsed ,galled ,scored,piston... fixing 1 like that now .
Thank you for video helps a lot .
Great video sir! Thank you!
I have ram trucks 5.9 Cummings code p2146 pcm voltage circuit opened on 146 you help wire horness