I recently changed out my front brake pads and rotors. Now I need to bleed the brakes, do I blled all four, and the master? Someone told me just the front two!? Doesn‘t sound right to me, And how do u bleed the master, On my 95 Dodge Ram.
when i do these i gravity bleed them,its slower but better method of doing this,i just open a bleeder up and start from the farthest wheel from the master cylinder,it is best to bleed all 4 wheels on them,this will also bleed out the master cylinder also on it,or you can have some one help you and pump bleed them,either way works on them,good luck with it.
As long as you didn't touch the rears, they should be fine. I have gotten away with only bleeding one axle. However, it doesn't hurt to bleed all four to make sure there is no air in the line. Whenever I bleed brakes, I do a gravity bleed first, then manually bleed them. To do this: take the cover off your master cylinder, and open all your bleeder screws. Fluid will travel down the lines and force all the air out at the bleeders. Do not let the master cylinder go empty during this process. When no more ait comes out, close the bleeders. Have someone get in the driver's seat and push on the pedal while you open the bleeder screw at one wheel. Have them push the pedal, you open the bleeder, let fluid/air come out, close the bleeder, and have the assistant let off the pedal. Do this until no more air comes out of the bleeder. Repeat this process for each wheel, starting with the wheel farthest from the master cylinder:Right Rear, Left Rear, RIght Front, Left Front. If you do it right, you'll get all the air out of the system and you brakes will work fine. Hope this helps.
The easiest way is to buy some speedy bleed bleeder screws and install in your calipers. this will allow you to do it with one person. Then you would want to remove fluid from master cyl until about 1/4 full, fill with new fluid and bleed wheel farthest from MC first working your way to the closest. usually RR, LR, RF, LF. It's a little more technical with two people, if you don't want to use speedy bleeders. Timing and finesse are usually required, and usually goes like this: Pump pedal to build pressure, hold medium pressure, open bleeder screw, as the person depressing the pedal gets close to the floor they shout and you close the bleeder screw. It's best not to depress the pedal all the way. 3/4 travel is best. keep doing it till you see clean new fluid or if the fluid already looks clean pump a pint through for each rear and a half pint for each front. be sure to keep the reservoir full or you can pump air in. then it turns into a headache. this will bleed the master cyl, lines and calipers, but not the abs system if equipped. The master cylinder only needs to be bench bleed when it has been removed from the vehicle or it is new. And as dodge man said the gravity bleed is good too, almost fool proof, but takes along time. You just open the bleeder screw and let it slowly drip, then close the bleeder. with gravity feed i have done two wheels at once. rears at the same time, and fronts at the same time. be sure to keep an eye on that fluid level. No matter what any one says, you should replace your fluid every time you do your brakes. If you do that, pads and fluid are the only things you will have to replace.
