4doogie

Alright.... so i just did a swap on my 94.... all new rear end.... 4:10's and posi..... everything works great....BUT my petal now goes almost to the foor.... it stops fine just petal goes almost all the way to the floor and my e-brake sucks now... if i set the e-brake half way then they work perfect..... any ideas? maybe i just need to bleed them more...


any ideas would be great.

Tate

I'm going to guess your adjusters are loose. Pop the plugs out of the backing plate, and rotate the star wheels to tighten them up.

wuecker

X2 on adjusting the rear. Makes all the difference in the world!

Stamey

I third the above. You might also look into pulling the drums off to see if the self-adjuster parts are all working properly, and the screw turns free.

Chris

4doogie

yea..... ok so seemed to help out alot.... now if i hit the breaks pretty hard two times in a row the petal gets so stiff my 230lbs 6foot 5 butt needs to get out of the seat to stop it..... what gives with that? booster or vacume pump?

Stamey

You could have a vacuum leak someplace, the booster could be what's leaking, or the vacuum pump may not be able to keep up. Use a vacuum gauge on it to further troubleshoot.
The vacuum gauge will allow you to see total vacuum, and after depressing the brakes, let you see how fast it builds back up. I imagien you also see your brake light in the dash come on also. This happens when there is insufficient vacuum in the system, signaling a braking problem.


Chris

infidel

If it's taking two pumps to get hard there's probably still some air in the system.
Bleed it it some more.

kawi600

Did you purge out all the old fluid (especially if it looked like brown goop)? If youre using a vacuum bleeder maybe try doing it the old way with two people.
check the adjustment on the rears and check for low vacuum and vacuum leaks. I re-sealed my vacuum pump and it shows 28 or 29 inches of vacuum. I dont know what the limit is. Usually the plug at the booster leaks a little and the lines on the CAD and xfer case like to loosen up.

4doogie

i think u guys are all a little right, i have a feeling i have a vacume leak, and i need to bleed the breaks all the way again.... it seems like one thing after another, i cant bleed the breaks untill i get new from calipers cause the bleeds are almost stripped.....


here is something as well.... my e-brake basically SUCKS.... wont hold the truck now in Drive with my foot off the break.... if i put it half way down the petal seems to be back to normal when i press it.... by normal i mean doesnt go to the floor.....like it does now.... any ideas on that?

thanks again for the help, i know my breaks ok....but i hate dealing with them cause somehow it always ends up bee'in $$$$$$ to fix lol

infidel

Main reason for poor e-brake is the rear shoes not adjusted tight enough.
This would also cause your two pump problem.
Jack both rear tires off the ground and turn the adjustment star wheel upwards while spinning the tire. When you first hear the shoes rub stop, you are done, go to the other side.