I did the front brakes on this truck, new rotors and wheel bearings, and the pedal is very spongy. With the engine off I can get a pretty stiff pedal, maybe with enough pressure it can be spongy but the real sponginess is with the engine on. The master cylinder/brake booster is very squeaky and also I can see the fluid inside the reservoir slush and bubble.
I've bled all four wheels in the proper sequence, and even bled the ABS unit looking thing. I'm almost convinced it's a weak master cylinder, it's original. Also the seals at the reservoir are seeping, just not pushing fluid out but they are looking a little wet.
And, when bleeding the brakes, as I crack the bleeder valve the brake fluid doesn't rush out, it just flows nice and smooth out of the tube.
have the same problem?
Friday, May 22nd, 2020 AT 5:02 PM