1999 Wrangler: no rear brakes - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today

Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-08-2007, 07:39 PM   #1
Join Date: Feb 2007
Posts: 5
1999 Wrangler: no rear brakes

My 1999 Wrangler, 6 Cyl, automatic, ordinary power brakes (no ABS) has virtually no rear braking force. I have only owned it for about 5,000 miles. Since winter hit, I have found that the rear brakes are completely nonfunctional. I cannot lock up the rear wheels even on the most icy roads, even standing on the pedal. That means that the fronts lock up all the time and the rears keep rolling. No malfunction lights, no leaking fluid. On snow, I can hold the car with the front wheels and even at idle the engine will turn one or another of the rears. REALLY DANGEROUS.

The dealer has: Bled everything, replaced the proportioner valve, replaced the master cylinder, replaced a flex hose that links the body and axle portions of the lines, measured the shoes and drums, and put "different springs" on the shoes, though he did not say which springs, or why stronger ones would make the shoes expand better. The Chrysler telephone tech people told the dealer that that is the way the car is, which I don't believe (tech, not the dealer).The pedal feel is the same as always, just a little spongy, which I think must be normal, given all the fluid bleeding that has gone on. The handbrake works normally. I am up to $700 in dealer chargesand I still cannot drive the car on slick roads... And should not drive it at all. I can't understand what is so complicated. Years ago, I drove a Dodge wrecker with power assist, and the brakes were simplicity itself!

Any Ideas from anyone?

bkaser is offline   Quote
Old 02-08-2007, 07:53 PM   #2
Join Date: Nov 2006
Location: Chicago, IL
Posts: 8,345
Send a message via AIM to Triple88a Send a message via MSN to Triple88a Send a message via Yahoo to Triple88a Send a message via Skype™ to Triple88a
well spongy is the first sign of air inside the brakes but you say they are bled so thats wird. The first thing i would say is adjust the starscrew or whatever its called. I dont know what else to tell you. For 700$ bucks you could have switched to disk brakes though. From memory some1 sold a kit for like 300$

Triple88a is offline   Quote
Old 02-08-2007, 07:57 PM   #3
Join Date: Jan 2007
Posts: 7
I have the exact same problem on my 98. Replaced master cylinder, wheel cylinders, and shoes and still didn't work. Took it back to the shop and they put slightly larger pistons in the wheel cylinders which helped a little but still don't work right. They said it was because I had larger tires on (31s). From all of the info that I've gotten on this and other boards, I think the rear drum brakes on the wranglers just don't work well. I'm putting on an 8.8 rear axle with discs in a couple of weeks, so hopefully that helps. Thankfully, this isn't my DD because I won't drive this thing if the roads are slick.
Scottie is offline   Quote
Old 02-08-2007, 08:54 PM   #4
Drives by Braille

WF Supporting Member
AzTJ's Avatar
Join Date: Dec 2006
Location: For-8-Oh!
Posts: 13,632
might be the proportioning valve... or worn out springs in the drums.
AzTJ is offline   Quote
Old 07-01-2007, 09:04 PM   #5
Join Date: Feb 2007
Location: Newport News, Va
Posts: 9
I have a 99 Sahara and its the same way. I think its just a common. If someone knows where to get a good deal on a disc brake conversion please let me know.
bubthechub is offline   Quote
Old 07-01-2007, 10:30 PM   #6
Mudweiser's Avatar
Join Date: May 2006
Location: Panama City Florida
Posts: 359
Send a message via AIM to Mudweiser Send a message via MSN to Mudweiser Send a message via Yahoo to Mudweiser
If you want to test your rear pads...just pull your ebrake.....its a manual way of engaging just them....if you feel no drag....you either have bad drums or bad pads...or they aint on right. If you have braking with your ebrake then you move onto hydraulic problems. Wheel cyclinders...master cylinder....etc.
01 TJ. Dana 30/44 4:88's, 4.0 5 speed, 38.5x15 Boggers on 15x10 Streetlocks, CAI, B&M short throw, Neoprene Covers, 4" RC, 3" BL, too much to list and building. >..<
Mudweiser is offline   Quote
Old 07-02-2007, 08:53 AM   #7
erickpl's Avatar
Join Date: Jan 2007
Location: Alabama
Posts: 2,341
Send a message via AIM to erickpl
Did you adjust the star thing at the bottom of the drums? Mine had HUGE amounts of pedal travel before I adjusted them, now they brake REALLY well.

-97 TJ with a few mods. PM with questions.
erickpl is offline   Quote
Old 07-02-2007, 06:06 PM   #8
Join Date: Nov 2006
Location: Chicago, IL
Posts: 8,345
Send a message via AIM to Triple88a Send a message via MSN to Triple88a Send a message via Yahoo to Triple88a Send a message via Skype™ to Triple88a
2X.. i agree with ericpl.. wheel star adjuster or whatever you call it seems like a good thing to blame.. drum brakes have springs which make it feel spungy since you step on the brakes.. it uses up the fluid to push the springs out and then the fluid is pressed back by the springs compressing the pistons and forcing all the fluid back into the resvoid..... Dont wranglers have automatic adjusters though?
Triple88a is offline   Quote
Old 07-02-2007, 06:18 PM   #9
George T.'s Avatar
Join Date: Jun 2007
Location: Utica
Posts: 547
Send a message via AIM to George T.
with my yj, i can just drive in reverse and slam on the brakes jsut short of locking up the tires and thats adjusts them fine.
'94 YJ H.O.
Inline-6, 5 speed
3.5 in. lift
upgraded header/exhaust
George T. is offline   Quote
Old 07-02-2007, 07:12 PM   #10
Join Date: Nov 2006
Location: Chicago, IL
Posts: 8,345
Send a message via AIM to Triple88a Send a message via MSN to Triple88a Send a message via Yahoo to Triple88a Send a message via Skype™ to Triple88a
okay here it is right out of my automotive mechanics book..
Automatic brake shoe adjusters normally function when the brakes are applied with the car moving in reverse. If there is too much lining clearance, the brake shoes move outward and rotate with the drum enough to operate the adjusting lever. This lengtens the star wheel assembly. The linings are moved closer to the brake drum, maintaining the correct lining to drum clearance.
Triple88a is offline   Quote
Old 09-24-2008, 05:59 PM   #11
Join Date: Sep 2008
Location: Bellevue Wa
Posts: 1
I have had the same no rear brake problem with my 99 Sport since I bought it. Everything is adjusted and in top shape. I think it is a poor design. I will probably put an adjustable proportioning valve in before the snow falls.
PMorford is offline   Quote
Old 09-24-2008, 08:53 PM   #12
4.0l sahara's Avatar
Join Date: Apr 2007
Location: shelton,ct
Posts: 2,228
They have auto adjusters but they suck your better doing it yourself.
99 sahara
flowmaster40,hpd30 with aussie locker,currie upper joints,4.88's, lca skids,chromo shafts,vanco brakes,d35 with super 35 and arb locker,re 4.5" springs,currie arms,re front uppers,Re shocks in back,walkerevens shocks up front, Re track bars with currie jj joints,anti rock,ss brake lines,re rear sway bar links,jks 1.25" bl and mml,bfg 35x12.5 km2's,craiger soft 8's,ome steering stabilizer,currie hd steering,rockmen front bumper,emp tank skid,lots more too.
4.0l sahara is offline   Quote
Old 09-24-2008, 09:10 PM   #13
Knows a couple things...

WF Supporting Member
Jerry Bransford's Avatar
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 38,496
Better having brake work done by a brake shop, not the dealer that specializes in replacing parts at high cost rather than actually figuring out what the true root cause of your braking problem really is. And rather than go to some nationwide chain of brake shop rip-off artists that have quotas to fill, find a small independent brake shop that belongs to the BBB (Better Business Bureau). They'll figure out what's wrong without ripping you off like the dealer did.

When you have a choice, buy American.

Jerry Bransford is offline   Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Built 00 Wrangler. Red. 87k miles. 15k (KS) MR.CLIFFORD Classifieds Archive 71 07-27-2008 08:33 PM
FS or Trade 1999 Wrangler TJ sport 5sp Tennessee blackbelt Classifieds Archive 5 04-15-2008 10:21 PM
First Wrangler - 3rd Jeep!!! tritonman WF New Member Check In 10 09-28-2007 09:27 AM
Built 00 wrangler sport. Yellow. Excellent condition. MR.CLIFFORD Classifieds Archive 6 01-15-2007 05:44 PM
The 411 on the New 2006 Jeep Wrangler jeeptales TJ General Discussion Forum 16 08-16-2005 12:46 AM

Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:36 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC