Ford Powerstroke Diesel Forum banner

Annoying Feedback sound/buzzing at 60+mph

3156 Views 5 Replies 5 Participants Last post by  RJC2
Alright folks I noticed this starting about a week ago and it seems to be getting worse.

It only happens really above 60mph occasionally but above 70mph it's frequent and will stay constant at times for 30 seconds or more. It's wind related for sure. Doesn't change pitch/tone with varying throttle position, isn't coming from the speakers, and sounds like it's coming right from the middle of the dash near the windshield.

Anyone else experienced this and if so how do I fix it? Going to get out there and try and track it down this weekend with the leaf blower aimed at the front of the truck to see if I can duplicate the buzzing.

FWIW truck has about 48k miles on her.

2011 F-250 annoying buzzing sound - YouTube
1 - 1 of 6 Posts
I learned that the radio antenna will whistle and vibrate at times. I was riding down a country road, with rolling hills with areas of high humidity in the low spots. Finally the light bulb came on... I realized that it would whistle when I was going through the thicker air.
Take notice if you hit fog, it really does it. I poked a Styrofoam ball on top of the antenna temporarily to see if it was actually what was causing it. It was.

The bad thing was that the noise sounded like it was coming from inside the truck. It made it very hard to figure out.
1 - 1 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.