986 Forum - The Community for Porsche Boxster & Cayman Owners

- Boxster General Discussions (http://986forum.com/forums/forumdisplay.php?f=5)

- - Horn Sounds Under Braking (http://986forum.com/forums/showthread.php?t=83795)

Horn Sounds Under Braking

1999 986 with 21K original miles, owned by me 4.5yr and 12K mi. The horn button has always been sensitive, ie look at it cross eyed and the horn sounds. Recently the horn has begun honking under moderate to hard braking. Happened to my wife first and I thought she was nuts. Happened to me today. Likely a short or a loose connection? Where do I start?

For a quick fix....
Take a business card and fold it in two. Shove it between the horn and the steering wheel. If you do it right, you won't be able see the card. The problem will be solved and your horn will work normally.'

There are some bushing that get weak causing the horn assembly to sag. Braking sounds the horn.

Been there!

I have repaired a few. It can be fixed with some small o-rings or you can replace the whole horn bracket. The second half of this post shows a repair I did a few years ago:

Quote:

Originally Posted by 78F350 (Post 619222)

I've been spending my 'garage time' other cars and just driving Red for a while. A few issues have cropped up that want attention.
Running the Toyo track tires on the street has encouraged me to push the car a little harder. The extra stress finished off any support left in the engine mount. That does not feel good accelerating out of a corner. I'm sure that the center is completely detached now. I only have one good mount left on the shelf, so it's time to buy a couple new ones. Thinking of the Powerflex Polyurethane bushing.

http://986forum.com/forums/uploads02...1592581776.jpg

The fuel gauge is starting to fail. It randomly drops to empty while I am driving. I need to pull the assembly out of the tank and see what the issue is. Not urgent, but important.

Urgent: The horn started going off at random times. Yesterday at a stop light it started honking and would not quit. There I was in the middle of town at a traffic light in my little red Porsche honking at 'everyone'. Finally, I grabbed the airbag and held it just right and the horn quit. It is not an uncommon problem on the old 4-spoke wheels. I fixed it last night.

The rubber bushings that mount the horn bracket wear out. The sagging bracket causes the contacts to meet and honk the horn.
http://986forum.com/forums/uploads02...1592582473.jpg

With the bracket removed I filled the worn bushings with a silicone sealant and put a weight on it to reverse the sag while it dried.
http://986forum.com/forums/uploads02...1592582674.jpg

I just cut a few little pieces of black window/door insulation foam, I bought at Home Depot and slide the pieces into the thin gap between the steering wheel and the floating horn. Stopped the inadvertent horn going off. Easy Peezy!

Happened to me...I was braking for a light on some rough pavement and the horn went off. Scared the hell out of me as I didn't realize it was my car. Got to our destination, sitting by a pool, and hear a car horn sound and stay on. I thought, "that would be me." Had to go out and pull the fuse. I actually replaced the entire assembly which was quite easy.