LBZ: Whine after Duel Fuelers?

ScreaminDuramax

ScreaminDuramax

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Sep 19, 2013
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I installed my PPE kit over the weekend, and now under load i'm getting a whining noise. Last night while test driving it happened at 3k rpm, this morning when I took it to work it happened around 2k under load. I cant replicate in neutral. Its very similar to the noise a stereo makes when improperly grounded. Im going to post a video from my phone, try to weed out the turbo and listed to the whine.
 
TROJAN366

TROJAN366

Gold Rush
Jan 13, 2012
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MASS
ScreaminDuramax said:
I installed my PPE kit over the weekend, and now under load i'm getting a whining noise. Last night while test driving it happened at 3k rpm, this morning when I took it to work it happened around 2k under load. I cant replicate in neutral. Its very similar to the noise a stereo makes when improperly grounded. Im going to post a video from my phone, try to weed out the turbo and listed to the whine.
Click to expand...

My truck does the same thing and it irritates the hell out of me. I think there is interference in the wiring somewhere but no mater what I move I can not get rid of the whirring sound. Mine is 100% coming through the stereo
 
ScreaminDuramax

ScreaminDuramax

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TROJAN366 said:
My truck does the same thing and it irritates the hell out of me. I think there is interference in the wiring somewhere but no mater what I move I can not get rid of the whirring sound. Mine is 100% coming through the stereo
Click to expand...


Mine isn't coming through the stereo, mine is in the engine bay
 
ScreaminDuramax

ScreaminDuramax

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The noise wasn't there before I put the fuelers on. I guess it could be a coincidence. I replaced them when I built my motor.
only thing still factory is the tensioner
 
Slowmax

Slowmax

Build what others' won't
Aug 3, 2013
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Is it possible the Dual pumps' added more load to the pulley system and now a weak link is showing itself, since Trojan find's his noise through the stereo?
 
Chevy1925

Chevy1925

don't know sh!t about IFS
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Oct 21, 2009
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ScreaminDuramax said:
I lined it up by sight, is there a better way to do it?
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a 1 foot metal ruler works well. put the end so ruler crosses the dual fueler pulley wheel at two points and see where it lands against the a/c compressor as well as the power steering. the ruler wont land perfectly on the a/c pulley if your going off the outer face of the fueler pulley but you just want the line the ruler creates to be parallel to the edge of the a/c pulley edge face. same with the power steering pulley. two rulers help a bit more for a visual.

that noise sounds like a pump whine though. if you unplug the regulator at idle, can you get the noise?
 
ScreaminDuramax

ScreaminDuramax

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Chevy1925 said:
a 1 foot metal ruler works well. put the end so ruler crosses the dual fueler pulley wheel at two points and see where it lands against the a/c compressor as well as the power steering. the ruler wont land perfectly on the a/c pulley if your going off the outer face of the fueler pulley but you just want the line the ruler creates to be parallel to the edge of the a/c pulley edge face. same with the power steering pulley. two rulers help a bit more for a visual.

that noise sounds like a pump whine though. if you unplug the regulator at idle, can you get the noise?
Click to expand...

Got it, that's what I was planning on doing, hopefully its off, that's an easy fix ...
 
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