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  #1  
Old 10-12-2010, 12:23 PM
FordMafia FordMafia is offline
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Default 1989 Ranger Brake issue

Hey guys, Im working on my friends Ranger and it has a very odd issue. I can pump the brake pedal 2 times and have a solid pedal with the engine off, when i'm holding the pedal down while starting the engine, the pedal fades to the floor. I have tried a used Master Cylinder and a used Brake Booster. When I try to bleed the brakes, I am only getting a continuous stream of fluid. 2.3L 4cyl, 5sp Man. 1989 Ranger. Any possible solutions?
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  #2  
Old 10-12-2010, 02:53 PM
EMB1230 EMB1230 is offline
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Default Re: 1989 Ranger Brake issue

I'm probably wrong, but that sounds normal.
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  #3  
Old 10-13-2010, 08:28 AM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

it cant be right, it never builds pressure in the pedal.
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  #4  
Old 10-13-2010, 10:12 AM
mickblock mickblock is offline
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Default Re: 1989 Ranger Brake issue

Unless you bled the master cyl seperately, (bench bleed) it'll be a neverending proccess to bleed it through the whole system.
Your pumping the brakes, shutting the valve before releasing, opening back up and then pumping in order to bleed them right?
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  #5  
Old 10-13-2010, 11:52 AM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

I Pump pedal and hold, Open Bleeder Valve and then close bleeder valve when pedal hits floor, and repeat. just tried another Brake Booster on it, Didnt help. Im running out of ideas and fast.
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  #6  
Old 10-13-2010, 12:43 PM
azgilamonster azgilamonster is offline
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Default Re: 1989 Ranger Brake issue

chk for a vacuum leak at the brake booster at this point.
if you pump up the brakes about 5 times with engine off hold pedal down and bleed the farthest away from brake resivour. (sp) do that on all wheels. you should be golden. all power brakes go down when the motor is running because of the booster is helping but it will not go to the floor if all the air is bleed and there is not an air leak anywhere
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  #7  
Old 10-13-2010, 01:48 PM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

we have tried bleeding the brakes again today and no luck,the pedal goes to the floor, it will stop the wheel, but the pedal is within an about 3/4 inch to bottoming out, I dont know what to do.
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  #8  
Old 10-17-2010, 06:38 PM
mickblock mickblock is offline
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Default Re: 1989 Ranger Brake issue

Check out this old video. It may have some steps that you missed when you installed your master cylinder.

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  #9  
Old 10-20-2010, 07:52 AM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

I don't think that is my problem, I a not putting on new master cylinders on the truck, i am putting on old ones, I am getting a very firm pedal with engine off, it can be the master cylinder. this situation isn't making any sense. Thats a good video by the way
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  #10  
Old 11-10-2010, 02:16 PM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

Hey everyone, just installed a new Power Brake Booster, and NO luck, the exact same situation. I have ran out of things I can try? Can Anyone Help me out!
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  #11  
Old 11-10-2010, 06:21 PM
mickblock mickblock is offline
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Default Re: 1989 Ranger Brake issue

Even if you use a USED master cylinder you can use a rebuild kit, which will have the very necessary NEW seals.
Two things can cause what you're describing; a leak, which would be drip.. drip.. obvious, or worn seals in the master cylinder that allow brake hydrolic fluid to seep back past the piston under braking pressure.

Well three but you don't have an ABS control unit that can trap air so forget that.
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Old 11-11-2010, 09:47 AM
FordMafia FordMafia is offline
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Default Re: 1989 Ranger Brake issue

I understand what your saying, however, I have a very firm pedal with the engine off, doesn't make any sense why that would only show up with the engine on.
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  #13  
Old 11-16-2010, 09:25 AM
bluerang3r bluerang3r is offline
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Default Re: 1989 Ranger Brake issue

hey man i know that inside of a myster cylinder there is a two stage piston one for the back brakes and one for the front... the first pist on is for the back brakes for light braking so it doesn't engage the front brakes.. but i would either say that the seals are blown and leaking fluid inside of the cylinder or check the brake booster line, there is a one way check valve in that line that keeps air flowing in the brake booster.. it could be that if the valve is broken that the pedal will sink to the floor without the proper pressure in the line
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  #14  
Old 02-20-2011, 07:09 PM
trainguy438 trainguy438 is offline
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Default Re: 1989 Ranger Brake issue

Hi was wondering if you ever resolved this issue? I am having the same problem with my 89 ranger...
Steve
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  #15  
Old 02-12-2014, 06:44 AM
Mr Moe Mr Moe is offline
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Default Re: 1989 Ranger Brake issue

I also replaced my power booster and master cylinder on my 89 Ranger and I cant get any break fluid to my rear breaks, non not a drop. I've tried gravity bleeding and vacuum bleeding and the old pump and hold method. Front brakes....no problem. my last method is with a home made power bleeder. I have everything I need for that method except an adaptor for the main brake fluid reservoir cap. I hate to possibly destroy the only one i have by drilling a hole in it for an air hose fitting, but I've reached the end of my patients with a 15 minute brake bleeding job that is on its 3rd day! I think my problem stems from improper bench bleeding the new Maser cylinder. Evedently I bled the front chamber properly but not the chamber for the rear brakes. I want to know if power bleeding would correct the mistake and force the trapped air all the way out of the lines. It would have to right?
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