How to fix light bar whistle

I have a 50" Radius Bar from OKLEDLIGHTBARS and Relentless Fab mounts. As soon as I drove with the light bar, I notice that God awful whistle sound! So after researching I tried this. I used Edge Trim which can be found in any auto parts store and I put the Edge Trim on the bottom four slits of the heatsink. I eliminated the loud whistle.

Here is a video of some of the information and how to.
https://www.youtube.com/watch?v=GT-DZ9Uy7W4&list=UUswQCLWkCcsrbMb1u1UkPAw

 

Going to try this NOW!.......Stand by.

 

Did the same to mine a while back. I only had to put it on one slit, of my specific bar anyways. What I did first was use electrical tape to cover the bottom of the light bar. A few strips. Then took off one at a time driving a short distance each time until the noise came back. Then once I knew where the noise was coming from, from that one specific slit/fin, I put the trim strip on and done. Another thing to note, is that my trim piece was coming off during the summer here in az. I need to get some kind of sealant in there when I redo it so it doesn't melt off. Ha. But yeah it was so fucking annoying I couldn't take it. Not a peep since then!

 

Oh hell yes. I thought I was going crazy

 

Ha this needs to be stickied

 

Let me know if this works for you!

Glad you got it fixed! Also how do you get a thread stickied?

Hahahah nah. Hope this helps you a little.

 

Ha Idk. Ask the mods maybe? Idk how that works yet. I was kinda kidding Probly won't as this isn't an info bloated thread, but it's such a common problem and an awesome fix that it should be To prevent fellow members from going insane until they find this. lol.

 

thanks OP. Glad someone finally posted a fix. Rigid just release some dense rubber blocks with fingers that slide in he fins of the lightbar to combat this same problem

 

Thanks Bryan. Fantastic idea +1.

Note - Before buying the trim, I would suggest covering the 4 or so fins with a strip of duct tape to insure this is where your whistle is coming from. Take it for a quick drive to confirm. Especially those with roof racks as the whistle may be from another location.

 

Thank you! This is a good idea as well!

 

HAHA!!! Thanks!

Thanks! Yea I've seen a few light bar companies sell something. This is just an easy way you can do on your own which is probably much cheaper too.

 

Just got back from testing it out. Put a door guard on the lowest fin and got it up to 90 mph..... no whistle!

 

Good to hear ......or should I say not to hear

 

I did a similar fix with mine..

cut some thin high density foam pieces at work.. and shoved them in between the top 3 fins.. and 3 points of the bar.. worked like a charm on the first try..

 

Does anyone know if you have to keep your light bar covered with a tinted lens or cover if it's mounted on the roof in PA, while on road?

 

Rigid released these back in 2013. Not sure why they are not to be found on their website and/or little to no information anywhere. I just emailed them and will post back results.

 

Used edge trim, lol it's that easy to fix. Did the tape method first

 

Received email back to call Rigid Warranty Dept. and Boom, foam isolators shipped same day.
Excellent service

 

sub'd, just installed my 50 radius and got the same crazy whistle..going to try the masking tape the lower fins and go for a spin to auto zone for some trimming pieces...Whoooot, hope this does it! Thanks TW

 

put test strips on and noise is gone!! Going to get some fillers and put them in the heat sinks to break up the hug open gaps all the way across.

and yes, I have a tree that poops on my truck everyday.....