Was sitting at idle in the parking lot before shutting off the engine. I noticed a squeak under the hood, I know my serpentine belt was squealing a week ago after hitting a big puddle and thought that was the case, so I popped the hood and had a listen and it's not coming from the belt. It's loudest on the driver's side around the valve cover. Is there anything under the valve cover that would make a squeaking noise, injectors, valve springs, could it possibly be the vp44? I don't notice anymore smoke than usual, loss of power, and there's no blow by

Edited September 6, 20177 yr by Cronus577

Fan pulley bearing? Pull the belt and check all your pulleys for bearing looseness. There is nothing under that valve cover that would squeak. Maybe the vacuum pump or power steering pump that is the only things that rotate on the driver side outside the block.

4 minutes ago, Mopar1973Man said:

Fan pulley bearing? Pull the belt and check all your pulleys for bearing looseness. There is nothing under that valve cover that would squeak. Maybe the vacuum pump or power steering pump that is the only things that rotate on the driver side outside the block.

The noise is coming from about cyl 3 to 6. Its not towards the front of the engine. Looks like this might be some bad news

Got a video, also went under the truck and listened but I can't hear it from underneath. It sounds like metal on metal screeching. Will be putting a Velair DD clutch and a built NV4500 in the truck this weekend so that would tell me if it's clutch or flywheel related. 

Video

From the video it's hard to tell but sounds like a dry throw out bearing/clutch noise. I would venture a guess as it's coming from that area. Not the engine.

32 minutes ago, CumminsTech said:

From the video it's hard to tell but sounds like a dry throw out bearing/clutch noise. I would venture a guess as it's coming from that area. Not the engine.

 I thought it could have been something along that nature but now that i'm watching the video i'm tracking where the sound is coming from and when it transfer from one ear to another. I think it might be #5 and #6 high pressure lines. Considering I also see that one of the clamps is missing right at where the sound is transferring ears. 

That's an important clamp!! Make sure you don't have deep wear grooves in the lines.

54 minutes ago, TFaoro said:

That's an important clamp!! Make sure you don't have deep wear grooves in the lines.

Thanks I'll check to see if I have them somewhere. I did my injector change when upgrading to DAP 50hp injectors and made sure all those were on. But I took it to a company in town that "specializes" in diesels for the 50 to 100hp injector upgrade and I found 2 of the clamps in the back of my truck, I kept them thinking they were important for something. I just have to figure out where I put them because all of my stuff is in a storage unit. I'll check the lines and make sure they're all good to go, when I felt the lines for #5 & #6 I could feel a hard pulse going through them while #1-4 were pretty smooth. Hopefully these clamps fix the issue, would be crazy to me that such high pressure fuel could cause a metal squealing noise. I'll keep y'all updated.