draining all brake fluid

[Goya20]

Taking all the fluid out the the car and replacing it will new will it build more pressure in the brake pedal? planning of doing that today. any suggestions i changed my calipers and master cylinder and it has some sink at the bottom of the pedal.

[evil_twin]

It will if you have air in the lines. You should replace your brake fluid every 2years I believe, but not many people do anyways. Flushing your fluid gets the moisture out of the brake system.

[SkinnyVT]

Taking all the fluid out the the car and replacing it will new will it build more pressure in the brake pedal? planning of doing that today. any suggestions i changed my calipers and master cylinder and it has some sink at the bottom of the pedal.

You have air in your lines, did you not bleed your brakes when you changed calipers and MC? Just to be clear you flush the old fluid out with the new fluid, there is no draining of the system.

[MR 325]

Easiest way it to open up all 4 bleeder screws, keep filling with new fluid, close bleeder screws when fluid draining becomes clean.

[Mike325]

Did you bench bleed your new master?

[Goya20]

the mechanic jsut put it in and then we did the 2 man bleeding process. he said that will bleed the mc but i dnt believe him

[evil_twin]

You don't have to bench bleed the master cylinder if you bleed the entire system. Bench bleeding will help get the air bubbles out quicker since you're priming the master cylinder, but you're doing a complete flush anyways.

Why take your car to a mechanic and have him do the work if you're not going to believe him? If anything happens, say your pedal goes to the floor because there is still air bubbles in it, it is his name that is on the ticket, his shop and he will be liable.

[flyboyx]

doesn't the abs get in the way of bleeding the brakes properly?