High pitch whining noise with videos - Page 2 - Chevy and GMC Duramax Diesel Forum
Drivetrain Discussion on gearing, CV joints, driveshafts, axles, brakes, etc.

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post #11 of 24 (permalink) Old 07-06-2019, 09:47 AM Thread Starter
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Quote:
Originally Posted by Ron Nielson View Post
Too bad the noise isn't made all the time. You could pull your serpentine belt, go for a (short) drive, and see if there was any change. To me, it sounds like power steering pump.
It happens maybe every couple weeks or so this is just the first time I got it on video.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
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post #12 of 24 (permalink) Old 07-06-2019, 03:34 PM
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Oh man intermittent problems are the worst!!!!!

Id try to note if the noise is RPM or speed relative. (e.g. drop it down a gear when you hear the noise and see if the RPM change makes it worse or kills the noise) That would be a start

2004.5 Silverado CCSB LLY
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post #13 of 24 (permalink) Old 07-06-2019, 04:04 PM Thread Starter
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Quote:
Originally Posted by MarvDmax04.5 View Post
Oh man intermittent problems are the worst!!!!!

Id try to note if the noise is RPM or speed relative. (e.g. drop it down a gear when you hear the noise and see if the RPM change makes it worse or kills the noise) That would be a start
That’s a great idea I will try it and I will let everyone know if I ever figure it out. If anyone else has any other ideas please please let me know.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
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post #14 of 24 (permalink) Old 07-06-2019, 07:11 PM
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Pull the belt and check the idler pulleys.. I had one going out and made some noise on occasion then go away. In the back of my head I was thinking I should take a look and I didn't, next thing you know I was replacing all the idlers and a new belt

2006 SIERRA CC SB 2500HD 6.6 LBZ 179,000 and ticking
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post #15 of 24 (permalink) Old 07-06-2019, 07:31 PM Thread Starter
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Quote:
Originally Posted by rock4xfab View Post
Pull the belt and check the idler pulleys.. I had one going out and made some noise on occasion then go away. In the back of my head I was thinking I should take a look and I didn't, next thing you know I was replacing all the idlers and a new belt
I’m going to go through all of that tomorrow! Thanks. I might just replace all of that anyways can’t be all that expensive.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
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post #16 of 24 (permalink) Old 08-01-2019, 06:27 PM Thread Starter
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Ok so I just started pulling my trailer around and I’m hearing the noice pretty much at ever stop when accelerating. I feel like it’s my transmission. Tranny temp got up to 230 today while making the noise. I can’t be the only one with this noise.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
knightstilepro is offline  
post #17 of 24 (permalink) Old 08-01-2019, 06:28 PM Thread Starter
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Quote:
Originally Posted by knightstilepro View Post

Here is the video once again. And I will say the acceleration while this noise is going seems greatly reduced.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
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post #18 of 24 (permalink) Old 08-02-2019, 04:49 PM Thread Starter
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Bump

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
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post #19 of 24 (permalink) Old 08-03-2019, 10:28 AM
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Is your truck 2WD or 4X4?? If 4X4, were you using that when noise occurs?

Ron Nielson
2008 Silverado LT, CCLB, Edge Insight CTS
2009 Arctic Fox 29-5T, Silver Fox Edition, Onan 3600 LPG generator
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post #20 of 24 (permalink) Old 08-03-2019, 11:58 AM Thread Starter
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Quote:
Originally Posted by Ron Nielson View Post
Is your truck 2WD or 4X4?? If 4X4, were you using that when noise occurs?
4x4 and no I wasn’t using it. It happens every time when I’m hauling a trailer during stop to accelerate. Not as much when I’m not pulling.

2008 Chevy 3500 6.6l lmm
Airdog 4g lift pump
Wcfab ybridge and egr delete.
Edge monitor with egr probe
PPE RACE FUEL VALVE
Efilive by Cory Willis and switch
Flatbed with Hydraulic hayspear
3 inch lift, lifts for less.
PVC re route
65mm upgraded turbo
51 gallon aux tank
knightstilepro is offline  
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