96 discco,i just install new breaks 800 miles ago.breaks got real spongie coming through the mountain, then loss of breaks as soon as i hit flat land,checked over whole truck, no leaks.let the truck cool down for an hour.pumped breaks 2 times full pedal,any suggestions?

 

Have you flushed your brake fluid lately?? Sounds like you have moisture in the brake lines causing major brake fade.

 

I have been fighting soft pedal since I bought mine 1 1/2 years ago. I think mine is a master cylinder. Just have not fixed it yet.

 

Your BRAKES over heated, you need to shift the transmission into 3rd gear, maybe even 2nd, depending on how fast you are going and how steep the hill is, BEFORE you start down the hill.
Use the BRAKES as little as possible, let the engine do all of the work.

 

Great argument for drilled/slotted rotors and decent pads - I've put them on my little cars and the braking is too confidence inspiring.

They're goin' on the DI when/if it needs rotors.

Colodisco, I bled (3)qts. (not pints) thru mine and the pedal and response is 100% better


luck,greg

 

lmao!!!

 

thanks to all who replied, i've bleed the breaks[all i could do since i'm 800 miles from home] will take all the suggestions on my way home..thanks again.

 

It's not just bleeding, you need to do a complete flush. That's part of routine maintenance.
Moisture in the fluid reduces the boiling point. At a lowered boiling point fluid turns to gas when you use your brakes a lot because overuse heats the fluid.

That may not be your only problem. You may also have internally swollen flex lines. If they've never been replaced, it's a good bet they are.

 

Good advice Spike. I manually shift the crap out of my truck: let that torque help out!