1992 C1500 brake problem..

[littlemlittle]

I noticed after my engine rebuild, I was getting a very spongy pedal, with little braking. I decided to bleed all the brakes, starting at Passenger Rear. I bled all of the brakes and it would still seem like it would want to fall to the floor even with the truck off. I'm not sure what to do..

I took this video last night of the master cylinder. This is with the truck off, but I started it this morning and it would still seem to go the floor.. I checked to make sure all bleeder screws were tight!

Anyone else have this, or know what to do?

https://youtu.be/qP1W1iR6mFs

 

[littlemlittle]

Here's another one from last night.

Took the cap off, and pushed the pedal slowly.

I know I need to clean it out.


https://youtu.be/hfOGWa2Q0LE

 

[arrg]

A brand new (not reman) master cylinder is $30-40 on Amazon depending on which one you chose.

 

[littlemlittle]

Yes, I will try and find a new master cylinder, I do believe that's my problem. Especially with the corrosion under the master cylinder container.

 

[Donald Mitchell]

There`s also a thread on here about removing the ABS and having much improved brake pedal feel. But I agree theres something going on with that master cyl.