• NAXJA is having its 18th annual March Membership Drive!!!
    Everyone who joins or renews during March will be entered into a drawing!
    More Information - Join/Renew
  • Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.

porportioning valve leak

93blackxj

NAXJA Forum User
Location
New Port Richey
My son wore through his front brakes, popping a piston L/F caliper. Replaced all brakes, but couldn't gravity bleed R/F caliper. Tried to force bleed the caliper to no avail. Started Jeep and depressed brake pedal feeling there was a leak to which i thought it was a bad master cylinder. saw that the porportioning valve was leaking through the light switch. Anyone have any info on this or have repaired one? Watched a couple of videos onYoutube that were helpful, but not XJ. '93 Sport
 
It's a damaged o-ring inside of the prop valve. Here's what they look like internally (pic is of an MJ valve). The switch plunger should be isolated from the brake fluid by the o-rings on the slide.
120477978.jpg
 
Back
Top