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1987 Toyota pickup 2wd 22r non turbo - brake pedal has no resistance.


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Suarulez111
New User

Oct 8, 2017, 1:22 PM

Post #1 of 3 (351 views)
1987 Toyota pickup 2wd 22r non turbo - brake pedal has no resistance. Sign In

 One day I was washing my trucks engine bay I started it a day later discovering the engine idling extremely high (pushing the brake pedal adjusted rpm range). I find out the spring to the pedal and the butterflies disconnected; that solved the high idle. NOW BRAKES with about 4pumps you got a sold pedal. Release wait a few and no pressure. Now when the car was warm you pump 4 times and push real hard on the solid pedal and it would slowly sink to the floor. Bleed the brakes and they felt fine till the next day; no brakes whatsoever. With a baster I took out a lot of the (real nasty) fluid from the resivoir and slowly topped it off with new fluid. Now starting from the furthest wheel from resivoir I bled until crystal clear and so on until the driver wheel. Now there I took a hose and ran it from the drain plug into the master cylinder and pumped about 500 times (until no bubbles were coming from the line and still no brakes even worse then ever. And now we’re up to me sitting in my garage staring at my truck while tying this thank you guys so much in advance


Hammer Time
Ultimate Carjunky / Moderator
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Oct 8, 2017, 2:01 PM

Post #2 of 3 (342 views)
Re: 1987 Toyota pickup 2wd 22r non turbo - brake pedal has no resistance. Sign In

Real nasty fluid? Makes me wonder if it got contaminated with an oil based product sometime. That will destroy the system.



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Tom Greenleaf
Ultimate Carjunky / Moderator
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Oct 8, 2017, 2:01 PM

Post #3 of 3 (340 views)
Re: 1987 Toyota pickup 2wd 22r non turbo - brake pedal has no resistance. Sign In

Almost certain master cylinder is toast that's one way they go bad as you said may pump up then you can loose pedal slowly makes it pretty sure.
Just other on it. The seals inside almost never travel to the bottom and it gets crusty. When/if for any reason an older one travels to the bottom it will tear up the seals inside and you toss it.


This seems pretty clear for that. Make sure no water going into master as the fluid will absorb it so quick flush it all out with new BRAKE fluid only,


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