Compression Ignition Addict
Join Date: May 2010
Location: Swampscott, MA
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Really Loud Idle
If you haven't read any of my other threads, I'm still fairly new to the Diesel world.
My truck makes this terrible sound at idle. If you thought a diesel driving down the road was loud, multiply it by 2, and that's where I'm at. Definitely wake the neighbors in the morning loud, but again, only at idle. I'm not sure if it's supposed to sound like this and I'm being paranoid, but the truck just sounds different. I'm not sure how to describe it. If I bring up the RPM's from ~650 where they sit at idle to about ~800, the sound goes away.
The truck runs great, drives great, has plenty of power throughout the powerband, but just sounds terrible at idle. I think of it as if I were chewing on a mouthful of rocks.
It will also make this sound when driving, and then letting off the throttle to coast.
Are my RPM's just going too low, and the truck doesn't like it? I was thinking maybe idler pully? I really haven't the foggiest idea.
It could be what this thing is supposed to sound like, and I'm just not used to it.
Thoughts or suggestions?
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99.5 F250 ECSB
4" ProComp Lift
ProComp Wheels with 35" Terra Grapplers
TGC Dual Steering Stabilizer
PHP Phoenix 80dd - 120race
Last edited by X JBM X; 06-21-2010 at 04:00 AM.
Reason: Title Change