|Originally posted by SeperatedSoul:|
so i can not figure out why know i have the brake light on when before i did the brakes it was not. any clues what it might be??? and also when i drained out the caliper and the line to the back driver side one the resivior did get quite low on fluid. would air in the master cyl. cause the light to go on? or air possibly in other brakes?
Did you not bleed the entire system? You're going to have to if the fluid got low in the master reservior. Look next to the brake master cylinder reservior. You see that little black plug on the top of the line block? That is a switch that makes the brake light come on and off. It's designed so that when the fluid gets low, the brake light comes on. There is a likelihood that a good amount of air is in the system and is causing the light to come on as the air is around where the sensor is.
You need to properly bleed the entire system. First fill the master reservior full. You start from the corner furthest away from the master cylinder (passenger rear), bleed that caliper, then driver's rear, passsenger front, then driver's front. Jack all four corners up, spray the bleeder screws with PB Blaster, have a helper help out by depressing the brake pedal, pop the bleeder 'till fluid comes out, then tighten it back up. Each time, check the master reservior so that it does not get air again or you'll have to do it all over.