06 lly knock at 1300-1700 rpm
- Thread starter Kansas2500hd
- Start date
spec is 4-6mm nuetral/drive
so it may be out of spec.
Just drive it and make it knock, then shut down 8 if it goes away.
There is your answer
so it may be out of spec.
Just drive it and make it knock, then shut down 8 if it goes away.
There is your answer
x2 Had the same problem. Its really common on the LLY. Injector still may be bad but if you haven't insulated the wires it will eventually rub all the way through on the alternator bracket.
Okay so I put a new injector in today. Went to start the engine and it has a terribly loud knock now. It's throwing 2 codes which are P2149 and P0208. We broke the outside of the electrical connector when plugging it in, but the actual plug part still looks fine. Do I just need a new pigtail or is the new injector I got stuck open? Thanks a ton
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
I thought so at first, but when I unplug the connector and clear the codes it still knocks really loud. I called a local tech and he said that It really sounds like the injector is stuck open. I ordered it from Pensacola injection and he said he wouldn't ever deal with that company. So I have a feeling they sent me a crap injector. Luckily it has a 1 year warranty and I should be able to get my money back as long as it's not the connector issue.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Keep in mind that a high balance rate can also indicate other problems, the high number could mean the injector is trying to compensate for low compression in a cylinder. Are you getting any blowby if you remove the oil filler cap? Take a piece of small rubber hose and try listening for crankcase noise inside the oil fill tube while it's running.
I'll try to after I get the injector to quit knocking. There's no way I could hear with the way it is right bow
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Okay, so I finally got the new pigtail installed tonight. Started up and it had a knock but it went away after like 20 seconds. I took it for a drive and ran really nice with no codes. Only thing is, I still can hear a very small fuel knock. Or what I believe is one. I'll run balance rates soon and see what happens.
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Sometimes after a repair you just get a bit over sensitive.
As in the knock you now hear is just kinda normal noises.
Get a buddy that's into trucks to listen to it.
As in the knock you now hear is just kinda normal noises.
Get a buddy that's into trucks to listen to it.
This is very true with me. When my new motor went in, I was freaking out over every little sound.
I just talked to the company I bought the injector from. He said the reason it's knocking is because I need to enter the new ECM code. I did get one in the box, but my local tech said not to worry about entering it. How and with what do I enter it? Thanks guys
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
Kinda have something similar. But when I opened the engine last month, saw really light white on 2 pistons. I might have 2 leaky injector. Lots of Kms, oem injectors
I'll probably replace those 2 this summer, and report about it
I'll probably replace those 2 this summer, and report about it