Yes, bleeding the brakes removes air bubbles that might be left in the system, especially in the brake lines!
If not done every time the brake system is worked on the brakes will be unreliable and unsafe!
Anytime you open the hydraulic system of the brakes you have introduced air into the system and you need to bleed the system when you are done. If you keep the brake fluid reservoir full while you make repairs it will be easier for you to bleed the system.
No, as long as your pedal seemed good before the brake job, and you do not loosen the bleeder at all, you do not have to bleed the brakes.
Open brake fluid reservoir for the brakes - make sure it is full of brake fluid - put lid back on reservoir then pump the brakes then hold the brakes on - have someone open the bleed screw on the brakes and let the air and oil out and close it again quickly and repeat until the air bubbles stop in the brake fluid, also checking to make sure you do not run out of brake fluid before you finish bleeding the brakes.
YOU ONLY BLEED BRAKES WHEN YOU DISCONECT ANY BRAKE LINES OR HOSES OR IF YOU CHANGING YOUR ENTIRE FLUID. IF YOU JUST CHANGE PADS AND OR SHOES YOU DO NOT NEED TO BLEED IT. JUST MAKE SURE THAT WHEN YOU PUSH THE PISTON BACK ON YOUR CALIPERS, THE RESERVOIR CAP MUST BE OFF TO AVOID DAMAGING ANY COMPONENTS.
Yes, the brake fluid reservoir should never be let to go empty during the bleeding process.
Does this Blazer have four wheel disc Brakes? NEW ANSWER: There's no reason to bleed brakes if you did not open the system.( where brake fluid came out )
You bleed the rear brakes the same way you bleed the front brakes. If you can't get brake fluid to come out the rear bleeders you may have a faulty master cylinder or the master was allowed to empty out the reservoir that feeds the rear and now it is air bound. Removing the master cylinder and bench bleeding the master may be what you need to do and don't let the reservoir go dry!
put brake fluid in reservoir and loosen the bleeder screws. step on the brake with the motor running and tighten bleeders before releasing brake pedal. repeat as needed
You need to bleed the entire brake system. Bleed in this sequence, RR, LR, RF, LF. If you do not know how to do this, do a search online for "bleeding brakes" THE REAR WHEEL CYLINDERS MAY BE LEAKING SHOULD ALWAYS CHANGE WHEN DOING BRAKES AND BLEED REAR BRAKES
Always best to bleed both sides if you change a brake line. EG: Both front or both rear.
it all runs off of your brake fluid, gotta bleed the slave too like brakes ray
adjust isn't really the right word here. if the pedal is soft and the brakes suck, and you have to push it real hard to get any reaction out of the thing, pushing harder may not be the solution. Check the brake fluid reservoir , make sure its full. regardless if it is or not you should bleed the brakes , and you may need new pads. if the brake fluid is real empty you must bleed the brakes.