HELP WITH A BRAKE ISSUE

hey guys i have an 86 4x4 and my pedal goes to the floor and doesnt stop. i was thinkin brake booster.....any ideas?

thanks

 

you probably have a leak, a bad booster would stop but have a firm pedal

 

Or just good old fashioned air in the lines.

 

also pull the drums and check the wheel cylanders, they tend to leak from there, and make sure all bleeder screws are tight

 

thanks for the input and i will bleed em and see if that works.

 

sounds like something is leaking, that is a sealed system a soft pedal is onething but to the floor sounds like trouble.

 

no trouble! haha
i was thinking a leak but the reservoir is full.......

 

did you bleed any air out of it yet?

 

also just thinking, it could be a internal leak within the master cylander

 

havnt bled them yet but i will tonite. i'll let ya know if that works or not

 

so i bled the brakes and that didnt help. guess i'll replace the master cylinder and see if that works

 

make sure to bench bleed the master cylander before installing it

 

ok and thanks for the heads up

 

master cylinder