Question: wind noise/whistle - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Old 01-21-2019, 07:21 PM   #1 (permalink)
Bonesmech
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wind noise/whistle

Well, coming up on one year with my L5P. It has it's quirks and the one that is driving me nuts the most is the wind/whistle noise from the center(slightly pass side) of the wind shield. This start about 90kph and intensifies as speed increases or strong winds. This has been gradual, new the truck had no such wind noise even with window vent visors. I have pretty much covered the entire front of the truck with tape hunting for the noise. Onstar antenna resealed, radio antenna removed(with molding removed), windshield completely taped off, hood seams, mirror seams, hvac inlet, hood seal to hvac. Search the internet some more and hood latch. dunno what the fix is for that but I taped off the latch area, no luck. The noise is there whether I have the winter front on or not. Even taped over the duramax allison emblems on the hood. For sh*ts n giggles changed out the cabin filter. Why am I doing this, I have no patience waiting on the dealer. I know how it works, being a former GM tech and Journeyman mechanic. I am reaching out to the ol dieselplace forum for any insight?

The only things I did not fiddle with is the CAI and hood scoop.(not yet)

2018 GMC 3500 CB/SB SLE
In service date April 28 2018
34000KM

Thanks in advance

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Last edited by OkDually; 01-21-2019 at 08:00 PM. Reason: lv/prefix
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Old 03-15-2019, 09:15 AM   #2 (permalink)
BlackMax Canada
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Yes, I have had some whistling, and my thoughts were the seal between hood and Intake....I've had mine since July 2017 and only have 10,000km on it when I parked it last October. I havent spent much time worrying about it.

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Old 03-15-2019, 06:55 PM   #3 (permalink)
RINGNEKS
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I found on one of my past trucks the bug shield caused the noise, not sure if you have one or not.
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Old 05-31-2019, 09:54 AM   #4 (permalink)
Bonesmech
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Quick up date, one whistle was the CB antenna. Fixed. Next was the wind shield. I guess there is a TSB about the wind shield being installed to deep and the sill of the cab at the top is proud. Had to install another new windshield from to many rock chips anyways from driving on the ftr.
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03 dmax ally cc/sb, gone
05 dmax ally ec/lb, gone
06 dodge cummins mega, gone
07 dmax ally cc/sb, gone
17 Canyon 2.8 dmax, unforatunately gone.
18 Sierra, 3500HD Dmax CC/SB SLE
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