brake pedal is hard but works

[jam1231]

Here is what's goin on when i first start the car up the brakes works fine. then the pedal gets stiff and it feels like the brakes are not releasing all the way the way i can tell is when i am on a hill the car doesn't roll back when i push the clutch in. i did notice some dust on one of the rims. i already bleed the wheel with the dust on it i did see another thread on this topic but i think mine is somewhat different


Modified by jam1231 at 3:50 PM 7/4/2007

[dickie]

seized caliper, maybe. im guessing this is on a 240sx, which means it needs to be in the 240sx section.

i recommend you check your pads and rotors and bleed your brakes.

[engineperson]

what do you mean by "dosnt work"? if it just doesnt work very well. i could be your pads or rotors . make shure averything looks ok visualy first b/c it might be something obvious. if the pedal feals spongy then try to bleed the breaks. but on my 240, the brakes dont work too well as a resalt of hard stopping, what this will do glaze the rotor and make it so that the pads cant grab as good. if this so. try scuffing the surface w/ 100 grit sand paper and make it really dull looking.

[nateb]

if by hard u mean its hard to press the brake when the car is running just like it is when its off.and when u do press it sounds like a leak of air. then my guess is u need a to replace your brake booster.

[bone_stock_240]

Maybe the vac line popped off the booster

[jam1231]

check the line on the booster my friend said to change the line for that brake he said it happen to him before, the line had collapes on him i change it but it got worst the wheel started squealing when it got hot what i don't get is if the caliber is sieze up wouldn't it be frozen all the time instead of when you use the brakes a couple of times after you start the car?