Weak/no horn fix - Jeep Garage - Jeep Forum

Go Back   Jeep Garage - Jeep Forum > Jeep Platform Discussion > Grand Cherokee - ZJ

Join Jeep Garage Today
Thread Tools Display Modes
Old 06-19-2014, 09:10 PM
sanjuro77's Avatar
My Jeep: 1996 4.0L ZJ
Join Date: Dec 2013
Location: NE Ohio
Posts: 220
Thanks: 3
Thanked 19 Times in 17 Posts
Rep Power: 1624
sanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond reputesanjuro77 has a reputation beyond repute
Weak/no horn fix

I can't say this will work for everyone, and I suppose it isn't really ZJ specific, but that's what I did it on, and that's where I'll post it. :-)

Anyway, I was getting only a very weak noise when I pressed on the horn, if any noise at all.
I figured on having to replace them after checking fuses and relays, so I removed them from behind the bumper and tested them with a battery and small jumper wires. One was completely dead, the other only gave a quiet crackling noise when powered.
I had planned on going to the pull a part yard for replacements, but as it has been raining a lot here, I wasn't too keen on lying on my back in the oily mud in the parts yard to get them, so I decided that maybe they were just gummed up inside, and sprayed the hell out of them with PB Blaster. There was also a little star-drive screw on top of the horns that I didn't know what it did, so I took it out and sprayed Blaster in the hole, too, and screwed them back in. I shook the hell out of them and poured the excess Blaster out, wiped them off, and tested them again with the battery.

Success! My horns are reinstalled and sound like new, with both low and high tones working!

Best part is, this fix didn't cost a dime!

Reply With Quote
Sponsored Links

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
2010 Jeep GC Ltd - Horn is Really Weak DustyOne Grand Cherokee - WK 4 05-04-2014 09:07 PM
weak airflow from heater and A/C chuck33 Troubleshooting/Problems 15 05-14-2013 04:17 PM
VisualGarage FM reception weak? J13ntv Grand Cherokee - WK2 - 4 03-30-2011 10:28 PM
Weak Power Steering MJohnson92 Troubleshooting/Problems 2 03-22-2011 02:34 PM
Weak Heated Ventilated Seats in new GC justin1569 Grand Cherokee - WK2 - 13 11-10-2010 12:37 PM

» Premium Vendor Showcase
Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 04:12 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community

JeepGarage.org is in no way associated with or endorsed by FCA US LLC. Chrysler, Dodge, Jeep, Ram, Mopar and SRT are registered trademarks of FCA US LLC.