3000 RPM Rattle - 6spd Cam Replaced Already

[Zapper]

Hi,

I recently replaced the passenger side intake cam on my truck. Maybe a week earlier I had the clutch recall done, replacing the clutch.

All was well, but pretty soon I noticed the dreaded 3000-3500 RPM rattle again. Most noticeable in 3rd, going uphill under load. I was fearing it was the cam again, but looking through some old threads, somebody once mentioned they had a rattle that went away with a little light pressure on the clutch. Another poster mentioned with an aftermarket clutch the noise went away.

Anyway, I hopped in the truck and tried putting my foot on the clutch a bit when the rattle occurred, and wouldn't ya know it, the rattle noise went away. So I thought I would post to say that maybe not all cases of the 3000 RPM rattle are due to a cam failure. What's the root cause for this particular rattle? Who knows, but something seems to be resonating at that RPM.

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[Medical_Bartender]

2022 manual here as well and I have heard this noise a handful of times under similar circumstances (2/3 gears usually up a hill under load around 3k rpm). I have a slight exhaust modification so I thought it could be some type of resonance related noise. Will try to play with clutch next time I hear it out of curiosity. Thank you for the heads up.

 

[ncl]

A guess would be noise from the throw out bearing?

 

[ChecksOut]

I've read or posted in one of the older threads. Mine is most noticeable in 2nd and up hill like you mentioned. I had a 2020 JLU with the 6 speed for 15k miles and never heard the rattle. I have 36k on my 21 JTR. I just had rockers and a cam replaced. I still get the clutch rattle. Easing up on the throttle quiets it down and goes away going up in gear.

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