Re: 1992 4Runner Brake Problem



Eagle1957@xxxxxxxxx wrote:
I have recently changed my brake system which included, calibers,
rotors, lines, brakes. Since I did this change, I was losing brake
pressure in the lines so I changed the master cylinder. I have changed
the master cylinder 3 times, and this last time, it lasted a little
longer, but now I have noticed that on 2 ocassions as I was backing
up, I lost my brakes and I also feel the brakes sometimes becomes
spongy. I also feel as I brake, the peddle sometimes goes down then I
feel the peddle pushing back up. What could be causing this problem,
since I have changed everything that I know in the brake system?

Please Help!!

Thanks!!

If you are using after market parts, your supplier could have a bad lot of them. I have run into this before on non OEM masters when pressure would not build to bleed the system. When I took apart the master, it had been assembled incorrectly (a lot of time wasted). I re assembled it correctly and it worked fine. It was one of those instances where a pressure bleeder would not have had a problem (I wasn't using it) and then of course when you completed the job and tried to operate the brakes normally, the brakes would not work. If it's not, I would buy the Toyota part. IMHO.
.



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