Brakes locking up -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep CJ Forum > Brakes locking up

Santa Kolak Announces: Bilstein Holiday Sale! Lowest prici20 percent off Seward LED at JeepHut starts tonightFS: Wranger BRIGHT License Plate LED! Just $3! Great value

Unread 04-27-2013, 08:37 AM   #1
Registered User
1983 CJ7 
Join Date: Feb 2013
Posts: 115
Brakes locking up

We just took it for a drive and the brakes are locking up on all four wheels. We recently replaced the new wheel cylinders and brake shoes on the rear. All four wheels are locking up. I have drum brakes on the back and disc brakes on the front. Any ideas. We've thought maybe kinked lines but then what are the chances of all four being like that, also I've heard people say it might be because I've my old brake fluid in there but I just want to hear some other ideas

larock is offline   Reply With Quote Quick reply to this message
Unread 04-27-2013, 03:24 PM   #2
Registered User
Join Date: Nov 2009
Location: florida
Posts: 623
I'd take a guess at the proportioning valve. Dirt in it. They give us such fits bleeding, why won't they be a pain in the butt like this. Try cracking the lines at the master cylinder to see if fluid will back bleed from the wheel cylinders. If nothing, then try cracking the lines where they go into the prop valve and see if it back bleeds out the valve.
baldfatdad is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.