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Brakes 93 foxbody - brake lights stay on

  • Thread starter Thread starter Nightstang00
  • Start date Start date Jun 17, 2018

Nightstang00

Active Member
Mar 20, 2017
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Jun 17, 2018
#1
  • Jun 17, 2018
  • #1
I’m finishing up (hopefully) a 5 lug rear disk swap. I got everything bolted up and brakes bled, I was checking to see if the brake lights worked, and they were already on. At first I thought maybe I hooked the switch up wrong, but I am not sure. I started searching online and saw people talk about adjusting the booster rod , I’ve never done this before nor do I know if it’s causing my issue. I have a 93 cobra master cylinder and brake booster , 03 cobra calipers rotors and pads. The brake lights didn’t stay on with the old brake setup. I still have the intake manifold off, so I don’t know if it will correct itself when I start the car for the first time with the new brakes. Hopefully. If not, where should I start??
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
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polk county florida
Jun 17, 2018
#2
  • Jun 17, 2018
  • #2
Pull up on the brake peddle, if the lights go out your rod is too short. I don't think the rod is adjustable, can't remember if the switch is either, I'll look in my book, someone may chime in before I get back.
 
Reactions: Nightstang00
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Kent Hall

Member
Jun 17, 2018
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Jun 18, 2018
#3
  • Jun 18, 2018
  • #3
take the switch off the brake pedal assy. Does the light go away? If so maybe your pedel does not come all the way back out?
 
Reactions: Nightstang00

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
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Jun 19, 2018
#4
  • Jun 19, 2018
  • #4
The brake lights are activated by the switch on the pedal. Staying on usually means the switch is either bad, or bound up on the road from incorrect installation.

Did you install a new booster? Was is the correct booster with a curved arm, or a booster with the straight arm out of an 96-98 V6 Mustang?
 
Reactions: RangerJoe

Nightstang00

Active Member
Mar 20, 2017
133
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Jun 24, 2018
#5
  • Jun 24, 2018
  • #5
Very upsetting to say... I just had the black bushing in wrong, which pressed the rod from the booster in to much. Sorry for the delay and I appreciate all the responses. All good now !!
 
Reactions: General karthief
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bluenblack87

New Member
Mar 3, 2024
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Canada
Apr 21, 2024
#6
  • Apr 21, 2024
  • #6
Nightstang00 said:
Very upsetting to say... I just had the black bushing in wrong, which pressed the rod from the booster in to much. Sorry for the delay and I appreciate all the responses. All good now !!
Click to expand...
I just ran into this problem today! I had issues reassembling and tossed the black bushing. I might have to go digging in the garbage lol. After the install the lights stayed on so I'm hoping it's only a simple tweak and it's good to go
 
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