'89 XJ buzzing when brake not depressed?
06-09-2012, 11:39 PM
#1
Newbie
Thread Starter
Join Date: May 2012
Location: Santa Clarita, CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Renix 4.0L Inline Six
'89 XJ buzzing when brake not depressed?
Hello, this is my first post here. I'm glad I found this place!
I've searched for an answer on the site to no avail, so here it goes.
My '89 Laredo makes a weird electronic, muted buzzing noise only when
my brake pedal is not depressed. If I press down the brake pedal it stops.
It appears to emanate from beneath the driver's side dash by my feet.
The noise is barely audible while driving down the street, but it is there all
the same... mocking me, taunting me.... What is it and how do I kill it?
I've searched for an answer on the site to no avail, so here it goes.
My '89 Laredo makes a weird electronic, muted buzzing noise only when
my brake pedal is not depressed. If I press down the brake pedal it stops.
It appears to emanate from beneath the driver's side dash by my feet.
The noise is barely audible while driving down the street, but it is there all
the same... mocking me, taunting me.... What is it and how do I kill it?
Last edited by MERK; 06-09-2012 at 11:42 PM. Reason: added more information
06-09-2012, 11:46 PM
#3
Newbie
Thread Starter
Join Date: May 2012
Location: Santa Clarita, CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Renix 4.0L Inline Six
Yes, as I put my head by where my feet go on the driver's side I can hear it loudly, but the acoustics are such that it sounds like it comes from everywhere under there.
06-09-2012, 11:48 PM
#4
CF Veteran
Join Date: Mar 2010
Location: Broward County Fl.
Posts: 47,923
Likes: 0
Received 22 Likes
on
22 Posts
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
have you removed the buzzer yet , like key in ignition,seat belt and lights on buzzer think it plugs into side of fuse box by left foo
06-09-2012, 11:56 PM
#6
Newbie
Thread Starter
Join Date: May 2012
Location: Santa Clarita, CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Renix 4.0L Inline Six
Ok I'll try it tomorrow and report back what happens. Thanks for the info! I think mine is big and blue.
06-14-2012, 11:37 AM
#7
Newbie
Thread Starter
Join Date: May 2012
Location: Santa Clarita, CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Renix 4.0L Inline Six
I removed that buzzer on the fuse panel and the sound didn't stop.
I then located the source of the high-pitched electronic buzzing/whining sound. It comes from this thing by my feet. I know it has to do with the brakes, but I'm at a loss as to what it is and why it's making that annoying sound.
I then located the source of the high-pitched electronic buzzing/whining sound. It comes from this thing by my feet. I know it has to do with the brakes, but I'm at a loss as to what it is and why it's making that annoying sound.
Trending Topics
06-14-2012, 06:52 PM
#8
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,875
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
What happens if you unplug the wires?
That wiring doesn't look factory and I don't ever remember seeing anything like that up under the dash.
That wiring doesn't look factory and I don't ever remember seeing anything like that up under the dash.
06-14-2012, 11:10 PM
#9
CF Veteran
Originally Posted by cruiser54
What happens if you unplug the wires?
That wiring doesn't look factory and I don't ever remember seeing anything like that up under the dash.
That wiring doesn't look factory and I don't ever remember seeing anything like that up under the dash.
06-15-2012, 06:48 AM
#12
::CF Moderator::
Join Date: Aug 2011
Location: Prescott, Az
Posts: 43,875
Received 1,526 Likes
on
1,238 Posts
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
It might be an aftermarket cruise control. I parted out an 88 or 89 and it's cruise sensor was totally different from that one in the photo.
04-01-2013, 06:35 PM
#13
Newbie
Thread Starter
Join Date: May 2012
Location: Santa Clarita, CA
Posts: 8
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1989
Model: Cherokee
Engine: Renix 4.0L Inline Six
Sorry about the long delay between replies (I moved and had to rehab the "new" house which took forever). I discovered later that this particular piece wiring was introduced during a cruise control recall. I unplugged the unit, turned the car on, turned the car off, plugged it back in, the noise went away and I haven't heard it since.
Thread
Thread Starter
Forum
Replies
Last Post
Fubar92627
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
10
09-18-2015 09:54 AM
Girlski
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
11
09-15-2015 03:31 PM
nrwphoto
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
0
09-09-2015 10:41 PM
BrownXJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
9
09-04-2015 04:20 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)