• Welcome Visitor! Please take a few seconds and Register for our forum. Even if you don't want to post, you can still 'Like' and react to posts.

4.0 Bronco II


4.0 Bronco II

New Member
Joined
Jul 1, 2014
Messages
6
Reaction score
0
Points
0
Location
California
Vehicle Year
1984
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
I have 1984 Bronco II with a 1993 4.0 liter out of a explorer. The problem I'm having is that I cannot get the Brake On/Off (BOO Switch) to work. My Bronco is a 5 speed manual with a M/T computer. Does anybody have any ideas.
 


adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Have you replaced the switch?
 

4.0 Bronco II

New Member
Joined
Jul 1, 2014
Messages
6
Reaction score
0
Points
0
Location
California
Vehicle Year
1984
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
yes the I have replaced the switch. The brake lights work and getting power from the switch to the computer. Since I live in California and trying to get the smog referee to pass he keeps telling me that the switch is not working. Not sure if its a computer problem or something else.
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Go kick the referee in the nuts and move out of California, problem solved.

If the brake lights come on then the switch works fine. I know medical marajuna is legal in California, but crack isn't and your referee either needs to provide better info or stop being high at work.
 

4.0 Bronco II

New Member
Joined
Jul 1, 2014
Messages
6
Reaction score
0
Points
0
Location
California
Vehicle Year
1984
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
I agree 100%. Been 4 times and get the same excuses everytime. I guess my next plan of attack is to paint the Bronco his favorite color. LOL
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
I am going to stick with "kick him in the nuts and tell him to stop doing drugs on the job".
 
adsm08

adsm08

Senior Master Grease Monkey
Supporting Member
Article Contributor
Ford Technician
TRS 20th Anniversary
Joined
Sep 20, 2009
Messages
34,623
Reaction score
3,613
Points
113
Location
Dillsburg PA
Vehicle Year
1987
Make / Model
Ford
Engine Type
4.0 V6
Engine Size
4.0
Transmission
Manual
2WD / 4WD
4WD
Tire Size
31X10.50X15
Anyway, I did some looking, and on the Calif emissions system the BOO does provide an input to the PCM.

It runs to pin 2 at the computer, check for voltage there with the brakes applied, and if bad run a wire, if good, probably the wrong computer.
 

4.0 Bronco II

New Member
Joined
Jul 1, 2014
Messages
6
Reaction score
0
Points
0
Location
California
Vehicle Year
1984
Make / Model
Ford
Engine Size
4.0
Transmission
Manual
Thx for the info.
 
You must log in or register to reply here.

Sponsored Ad


Sponsored Ad

Staff online

Members online

Total: 543 (members: 18, guests: 525)

Member & Vendor Upgrades

For a small yearly donation, you can support this forum and receive a 'Supporting Member' banner, or become a 'Supporting Vendor' and promote your products here. Click the banner to find out how.

Latest posts

Truck of The Month


Shran
April Truck of The Month

Recently Featured

Want to see your truck here? Share your photos and details in the forum.

Follow TRS On Instagram

Latest Album Photos

Hunters
20240409_190831.jpg
20240409_190818.jpg
20240409_180824.jpg
20240409_182648.jpg
20240409_181010.jpg
20240408_175026.jpg
99 Ranger
20200706_161414.jpg
20240207_155117.jpg
20240207_155111.jpg
20240207_154537 - Copy.jpg

TRS Events

25th Anniversary Sponsors

Check Out The TRS Store


Sponsored Ad


Sponsored Ad

Sponsored Ad


Amazon Deals

Top