As the title says, when im driving... i must turn near half turn to the left for going straight, and if i let go, the car just when to jump outside of the word. At first i though itjust about an alignment but my wife told me it smell fussy in that Wheel (i lost the sense of odor ...  ) so i think is because the brake is always braking. What can cause this, a bad Master ? i dont think so beacause the other Wheel look good... can it be bad hose ? or it,s just a bad adjustement of brake ? i'm asking you for clue please...And second hint i need, is those front drum need the puller i saw in other trhead? the one BIG M put in photo ?

(hope my English is enough understandable...Grrr !)

could be a bad wheel cylinder, i dont think a master cylinder would cause that. better wait for another opinion from another member

You should not need any type of drum puller to pull the front drums. Back off on the adjuster a little and see if that stops it. If not pull the drum and check the brake shoes on that side. If she pulls to the right the right front brake shoes may be too tight or contaminated with brake fluid from a wheel cylinder leak.

Ok, i will start by that... Thanks arnie

I have updates, the light problem solved, I have an issue with brake lights, ... More brake issue, my stop light is always on, when I remove the sensor from the master, it goes off, then, if I put it back and push the brake again, it's stay on,... Why do I have pressure in my lines when I release the brake pedals? From my view, the problem is in the master... But you are the pros here...

And when I press the pedal with the master cover removed, it spray brake fluid out side the reserve

I just got off of the brake problems roller coaster. I hope you find a good solution. If the stop light switch doesn't work give it a whack with the end of a wrench. worked for me. just a bubble or something I think

A brake puller is needed for rear brakes only. Sounds like it's time...to take the front brake drums off and inspect inside to see whats going on. First though...once car is up in the air spin the wheels by hand...and I'm thinking the right wheel should not "free wheel" at all.

It is kind of strange though, that WITHOUT braking, the car pulls to the right. I would expect it to be a brake related problem if the car pulls to the right AFTER you hit the brakes. If it is a brake related problem, it should be very obvious once you get in there...leaking wheels cylinders...fluid all over the shoes etc...

Bob

I would rebuild the wheel cylinder or replace it at a minimum.  The hoses can have internal defects keeping pressure in that wheel cylinder, change it.  Cheap insurance to keeping ALIVE!. Marc.