Just had front rotors replaced break pedal still feels spongy it stops and has pressure to it but my pedal is going down a little too far( when car comes to a complete stop my free foot just barely fits underneath pedal, and pedal comes back up with no problem) did a master cylinder test to see if when brakes are pressed if there was any bubbles in reservoir and there wasn‘t any, I‘m not losing any fluid so what else can it be ? I have a 97 lumina with ABSbrake lines are new as well as a caliper(driver side)
You need to get both front calipers bled properly, some with ABS need to be pressure bled to remove all air from system. If work done by a shop take back and have them pressure bleed, takes a special adapter that mounts on master cylinder.
Sound very much like air in the braking system. But there are other possibilities. Do the rear brakes need adjusting properly? They should be adjusted on the shoes, NOT the handbrake cable. Or a front wheel bearing? Get them checked at a reputable garage.
it sounds like you have air in the braking SYSTEM, also make sure no water has got on to the system. if you pump the pedal, does the foot brake go hard, if so it is air the system, I would have the fluid flushed through with new brake fluid. the other way you can tell if it is air, hold Your foot on the brake pedal, if the pedal slowly finds it way going down to the floor, its air in the SYSTEM.
