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Well, i have changed everything but the booster, rear hose, and metal lines. Front brakes were still building too much pressure. When checking and re-checking everything,i re-measured the brake booster push-rod that goes to the master cylinder with a digital caliper (unavailable to me before) and ...

Thanks for the help. I think it may be the master cylinder too. Its about the only thing I haven't replaced new or taken apart and rebuilt myself. Either that or the rear brake hose isn't new.

they should make one of these little smilies holding a gun to it's head. boom

I can't seem to locate a proportioning valve or a pressure differential valve.
Does my 86 B2 even have them? Where the hell is it located? Brakes are killin' me.

Both front caliper hoses replaced and problem still occurs. Gonna replace brake booster check valve and go from there. Didn't do the check valve yet, but I rebuilt my calipers again to be sure they weren't sticking and the brakes ended up grabbing too much again. Put in new rear wheel cylinders and ...

Replaced brake hoses with no luck

Thats the second time I've heard that, so I'll give it a try today.

By the way I am in total agreement with you I want to be sure that when i hit the brakes those bad boy are gonna stop me. I like to bomb it, but not like that.

Well the fluid used to be shit, but i flushed the whole system rebuilt the calipers swapped in a used power booster and master cylinder, which made the brakes function better, but i still have the same problem.

On my 86 B2 I've been having problems with the front brakes grabbing too much. When I start out driving they fell fine, a little spongy, but fine. After driving for a short period (5-10 miles) the brake pedal gets very firm and I can feel them grabbing when i coast to a stop and when i take off, i ...

so i replaced the egr, egr pressure feedback sensor, and the egr vacuum solenoid trying to get rid of a code 33. When i replaced the vacuum solenoid i re-tested and had a code 84, then replaced the pfe sensor and still had the code. tried clearing the code and driving then re-testing still code 84 ...

My 86 b2 4x4 tripped code 33. EGR Valve opening not detected. Was wondering if anyone has had this problem and would like to know what fixed it. Need to smog my B2 and have a feeling I need this fixed to pass.
Damn emissions.

You are correct!! just needed to bleed 'er to death. Thanks 4 your help.

new master cylinder and had to sand down the rubber gasket for the clutch line to slave connection to mate correctly. then i bled the ever lovin' livin' crap out of it! All is well thanks again.

Another guy told me that if you depress the pushrod without having the master connected to the slave you ruin the master. My new wont build any pressure and i have bled the sytem at least 10 times from the slave to the master both. I have also heard this in a number of forums. What gives true or ...

86 b2 4x4

Can you screw up a clutch master cylinder by depressing and releasing the push rod before there is fluid in the system.

So I bled the system about 4 times. When i depress the clutch pedal at first it fills like it's building pressure and then goes to the floor, and the pedal will return very slowly. When the vehicle is running you can start to put it reverse and the gears will start to clash(clutch depressed or not ...