jeeptec1 Posted March 14, 2020 Share Posted March 14, 2020 88 Comanche, I did the power booster upgrade today. I drilled out the hole on the booster rod as instructed on all the forums. I ground the booster rod end flat. As i push the brake pedal it doesn’t move the brake switch. It’s supposed to rotate slightly to turn on the brake lights. I saw in another forum someone used a painless 4 terminal universal switch as they had the same issue. Sent from my iPad using Tapatalk Link to comment Share on other sites More sharing options...
Big Dan Posted March 15, 2020 Share Posted March 15, 2020 Check to ensure the fuse is good.I thought I hadn't machined the rod correctly and went to a standard push type brake switch... Still didn't work.Turns out I blew the fuse whole messing around with everything.Sent from my Pixel 2 XL using Tapatalk Link to comment Share on other sites More sharing options...
jeeptec1 Posted March 15, 2020 Author Share Posted March 15, 2020 If you rotate the switch on the rod end the lights come on. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 15, 2020 Share Posted March 15, 2020 I went through several OEM style switches, get it set to function then a month later it stopped working. Got tired of it and went to the standard and simple switch. Link to comment Share on other sites More sharing options...
Big Dan Posted March 15, 2020 Share Posted March 15, 2020 I went through several OEM style switches, get it set to function then a month later it stopped working. Got tired of it and went to the standard and simple switch. It's the way to go. Sent from my Pixel 2 XL using Tapatalk Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 15, 2020 Share Posted March 15, 2020 Bracket came from a '92 XJ ....IIRC. Screws right on. Link to comment Share on other sites More sharing options...
jeeptec1 Posted March 15, 2020 Author Share Posted March 15, 2020 Well a painless 4 terminal switch will be ordered Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Big Dan Posted March 15, 2020 Share Posted March 15, 2020 What size screws did you use? Sent from my Pixel 2 XL using Tapatalk Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 15, 2020 Share Posted March 15, 2020 5mm because I have plenty and a tap. Link to comment Share on other sites More sharing options...
cruiser54 Posted March 15, 2020 Share Posted March 15, 2020 You likely ground too much off the switch, or have the bolts and nuts in wrong. Link to comment Share on other sites More sharing options...
jeeptec1 Posted March 15, 2020 Author Share Posted March 15, 2020 Bracket came from a '92 XJ ....IIRC. Screws right on. What year is your MJ?Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 15, 2020 Share Posted March 15, 2020 1 minute ago, jeeptec1 said: What year is your MJ? Sent from my iPhone using Tapatalk '88 Link to comment Share on other sites More sharing options...
jeeptec1 Posted March 15, 2020 Author Share Posted March 15, 2020 '88 Ok same year as mine. I will go junkyard checking as soon as the rain stops. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
cruiser54 Posted March 15, 2020 Share Posted March 15, 2020 I used this on one of the swaps I did. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now