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Unread 04-28-2009, 10:29 PM   #1
bczolone
Registered User
 
Join Date: Apr 2009
Location: Mexifornia
Posts: 3
Help! Brakes gone...pedal goes to floor

My dad has an 87 that has 215k+ miles...I know I've told him to send it to the scrap heap, but anyways...as the title says the brake pedal started going to the floor and thus- no brakes.

I have been all over the net and he has talked to everyone we know...we are out of ideas. Of course everyone says "master cylinder"...well we just did number 5 today.

Here's what's been done :

New shoes and wheel cylinders
New pads and calipers (bleeder on top-checked them before replacing)
New flexible brakes lines all the way around.
New Booster
5 Master cylinders...

Only thing we think is left is the proportion valve or the hard lines...but I can't image that has anything to do with it...like I said the pedal goes to the floor, but there's no fluid loss.


any help would be greatly appreciated.

Thanks in advance!

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Unread 04-28-2009, 11:10 PM   #2
brand0nlp
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1996 XJ Cherokee 
 
Join Date: Aug 2008
Location: lancaster SC
Posts: 170
i know on some cars/trucks you have to bleed the master cylinder before you install it, if you dont the air wont come out of the lines thus the feeling of havin no brakes. i dont know how the jeeps are done never had to do a master cyl on a jeep but i have on a few other vehicles that required it be bleed before install
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Unread 04-28-2009, 11:38 PM   #3
bczolone
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Join Date: Apr 2009
Location: Mexifornia
Posts: 3
Yeah we bled the master. Bench bled then again when we bled the brakes...argh 5 times!

I'm ready to sell it for scrap!...lol, bad thing is it runs like a top and is really in great shape...until now.
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Unread 04-29-2009, 12:24 AM   #4
Jeep_siihb
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2000 XJ Cherokee 
 
Join Date: Nov 2008
Location: Milford, Ohio
Posts: 117
if it runs like a top then it doesnt deserve to go to a scrap yard. your gonna get those brakes fixed for a lot cheaper than another jeep/car.

If you can take it to a brake shop they can typically give you a quote at what it is that needs to be fixed. get the whole bs list that they will give you and take it home and narrow down your problems
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Unread 04-29-2009, 12:28 AM   #5
RedWind
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1994 YJ Wrangler 
 
Join Date: Sep 2008
Location: Bethlehem, PA
Posts: 221
is the fluid levels in check to make sure there is no hole in the line some where and just check them over to be sure
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