I just change my front brake pads on both side, but when I step on the brake I feel so sponge and I have to step all the way to the floor to just make the car slow down to a stop, some body tell me I have air in while I changing the brake but I follow all the instrustion so I don't know how to air came in to the brake system, can anybody tell me how to take the air out now ?

 

Did you bleed the front brake lines after you put on the new pads?

If you didn't, you will need to bleed them. Both sides. Try that. If that doesn't work, bleed all 4 corners in the proper order (RR, LF, LR, RF). If that doesn't work, then I'd say your master cylinder has miraculously gone bad.

I think bleeding should work fine.

 

In theory (at least on my 6th gen) you don't need to bleed the brakes after changing pads/rotors because you don't have to open the lines. But if you open the lines, then yes, you need to bleed. And since you are having symptoms, then you bleed them as said above.

 

I didn't bleed the lines, but I only have 1 brake line on each side, and I have to bleed both side of the brake ?

 

just bleed one for each axle/wheel/brake.
thrs only one bleeding screw anyways.

 

Virtually all Hondas use sliding caliper single piston engines, that means that a single hydrolic piston on the inner side will pull both pads into the rotor. There is only one bleeder screw.

Even on other brands with multiple pistons in one caliper, there is typically only one bleeder. Some have two, but one is only used for initial installation and bleeding.

If you got air in the lines while replacing pads, either you did something wrong or something is damaged.

 

you probably don't need to bleed the lines.. you just changed the pads.. a transfer film will need to develop before the full braking power is felt.. so your brakes are going to feel like crapp for a day or two..

find an empty area, drive to 60 down to 15 mph by medium-hard braking.. repeat about 5 times.. then drive around cruising speed trying not to use your brakes.. after 10 min. of driving and letting it cool off, repeat...