1999 GMC C2500 noise ?

1999 GMC C2500
110,000 MILES • V8 • 4WD • AUTOMATIC
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SPIKELLADNAR
  • MEMBER
  • 1 POST
I recently purchased a 99 gmc p.u. At highway speed there is a sound like a flag flapping in a strong wind, on each side of the truck . It sounds like its coming from the area where the hood hinges are attached. Ive removed weather stripping and secured loose plastic pieces and even stuffed rags into holes in that area . I have not been able to find it, and any of my attempts have made no difference.
thanks
spike
Dec 1, 2008 at 6:22 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi:
By any chance is there a rubber flap under the truck near the radiator that could be making the sound?
Dec 15, 2008 at 10:22 AM
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