My breaks pedal goes all the way down?

I just changed the master cylinder and break booster on my 1997 Honda Del sol. The breaks still sink all the way down. I still have yet to bleed them. But how big of a difference will bleeding the air out of the system do the my sinking break pedal. Or is there another reason my break pedal would be doing this? Keep in mind I haven't bleed them yet. Any help would greatly be appricated.

I just changed the master cylinder and break booster on my 1997 Honda Del sol. The breaks still sink all the way down. I still have yet to bleed them. But how big of a difference will bleeding the air out of the system do the my sinking break pedal. Or is there another reason my break pedal would be doing this? Keep in mind I haven't bleed them yet. Any help would greatly be appricated. If you haven't bled the system then it won't work, exactly as you describe. There will be air in the brake lines, which simply compresses when you push the brakes. So there's almost no resistance, and the brake don't activate.

Go through the bleeding procedure, get All the air out of the lines, and it will probably work OK after that. Of course you have to bleed them first! Bleed them until the pedal feels right when you press it. It can take a lot of pumping the pedal. Bleeding the brakes makes all the difference. You do understand the reason for doing this, right? Hint: air compresses while liquids don't. It will make all the difference in the world. Did you bench bleed the master cylinder before you installed it? If not you're in for a long process to get all the air out of the system. For the brakes to work properly All the air needs to be removed from the system. Make sure you use the proper brake fluid and check the master cylinder frequently because you will need to refill it a number of times during bleeding. If you let it go dry you have to start all over again. You gotta bleed them, it will make a huge difference Must check to make sure all your brake pads are installed and fairly new before bleeding brakes.

A tiny bit of air anywhere in the system will affect it. Since you didn't bench bleed the master cylinder, you have now introduced more time on your part to get more air out.

I spend 10 hours bleeding air out of a VW, 50 pumps and hold… If you have ABS, then you need an ABS handheld bleeder computer to actuate it and get the air out the right way. Don't drive the car until you get All of the air out of the BRAKE (notice the spelling) lines. Yes it would. Bleed them. Bleeding will make all the difference and is required when ever you open the sealed hydraulic system. You need to get all of the air out of the lines in order to have a firm pedal. Air in brake system… If this does not works then its brake power booster

Of course you have to bleed them first! Bleed them until the pedal feels right when you press it. It can take a lot of pumping the pedal. Bleeding the brakes makes all the difference. You do understand the reason for doing this, right? Hint: air compresses while liquids don't.

It will make all the difference in the world. Did you bench bleed the master cylinder before you installed it? If not you're in for a long process to get all the air out of the system. For the brakes to work properly All the air needs to be removed from the system. Make sure you use the proper brake fluid and check the master cylinder frequently because you will need to refill it a number of times during bleeding. If you let it go dry you have to start all over again.

You gotta bleed them, it will make a huge difference

Must check to make sure all your brake pads are installed and fairly new before bleeding brakes.

A tiny bit of air anywhere in the system will affect it. Since you didn't bench bleed the master cylinder, you have now introduced more time on your part to get more air out.

I spend 10 hours bleeding air out of a VW, 50 pumps and hold… If you have ABS, then you need an ABS handheld bleeder computer to actuate it and get the air out the right way.

Don't drive the car until you get All of the air out of the BRAKE (notice the spelling) lines.

Yes it would. Bleed them.

Bleeding will make all the difference and is required when ever you open the sealed hydraulic system. You need to get all of the air out of the lines in order to have a firm pedal.

Air in brake system… If this does not works then its brake power booster