brakes/booster

[kvn4]

95 jimmy 4.3 4x4 4walb .having problem with brakes and need advice as to where to start first. past couple days brake pedal would seem normal but if pressed hard i would get a hard pedal, now have hard pedal. vaccum at booster good .with car off i pushed down hard and popped rear left line.start car and still hard petal. am i looking at replacing booster or does it seem like master. thanks k

[MT-2500]

If the same with engine off and engine running the booster is bad.
But if you popped rear line you will need to replace it and bleed brakes.

[kvn4]

thank you for the info ,it was the booster. i replaced the rear line but bleeder screws are not moving (stripped them) .gona try the lines themselves,i can loosen rear left but not the right side. do i have to replace the cylinders if its a no go? thanks k

[MT-2500]

Originally Posted by kvn4

thank you for the info ,it was the booster. i replaced the rear line but bleeder screws are not moving (stripped them) .gona try the lines themselves,i can loosen rear left but not the right side. do i have to replace the cylinders if its a no go? thanks k

Depending on where and what line you replaced.
If you can crack a line between repair and rear cylinder it may bleed.
Good luck

[kvn4]

all set thanks again. k

[MT-2500]

Your are welcome.
Good Luck