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bgum
South Louisiana
Senior Member
Joined: 02/22/2006
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Door weather stripping would be my guess.
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hornet28
Muskegon Mi.
Senior Member
Joined: 07/27/2017
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You're wondering if it's the cab lights, I've had more than one truck with cab lights and never experienced any whistling. One thing you could do is take a screwdriver and make sure all screws on those lights are tight
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s1214
Vt
Senior Member
Joined: 05/06/2006
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2019 2500HD with the towing mirrors. At certain speeds and wind direction the mirrors whistle. If I extend the mirrors out a little, it stops.
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BenK
SF BayArea
Senior Member
Joined: 04/18/2002
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With the hose method, have helped ID sources :
2 Windshield. One at the middke bottom. Other upper, pager corner
Several door, door window
One down on the floor where a drain plug wasn't reinstalled correctly
The hose should be about 3-4 foot long
Good luck
-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...
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bucky
Raleigh metro
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Joined: 05/07/2003
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Sorry, misread something.
Puma 30RKSS
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PA12DRVR
Back in God's Country
Senior Member
Joined: 09/17/2003
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"2019 2500HD with the towing mirrors. At certain speeds and wind direction the mirrors whistle. If I extend the mirrors out a little, it stops."
Several years older model with the same issue. Pull the mirrors out just a bit (.5" or so) and it stopped. 13 years later, apparently enough crud has built up that it doesn't happen anymore.
Had the same noise issue on a Toyota Tundra: fixed by putting a strip of black electrical tape over a seam in the mirror housing.
CRL
My RV is a 1946 PA-12
Back in the GWN
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HTElectrical
Las Vegas
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Joined: 02/09/2008
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Check the trim around the front windshield. With my bug deflector on my truck it caused a whistle tapping noise at highway speed. I taped around window and outside, and filled slight gap with black caulk. No more noise.
2007 Duramax, Cognito 7"-9" Lift,
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