Soft Brake Pedal
#1
Driver School Candidate
Thread Starter
Soft Brake Pedal
Hello guys, just did a brake fluid flush, and now the brake pedal feels a little different than before.
It feels super soft during the first 1/4 and would become pretty firm after. The car stops just as good as before the flush though, if not better. The brake feels much more responsive, especially during the 1/4, but it's so soft it makes me wonder if there is still air in the system. Does it sound normal?
It feels super soft during the first 1/4 and would become pretty firm after. The car stops just as good as before the flush though, if not better. The brake feels much more responsive, especially during the 1/4, but it's so soft it makes me wonder if there is still air in the system. Does it sound normal?
#2
Instructor
iTrader: (1)
When were your brake pads last changed? Fluid level is good obviously?
I know i have some aftermarkets installed by the previous owner that grab initially and then have a bite to them that takes a bit more pedal. Considering you just did a fluid flush there could be air in the system still though as you've suspected.. Most cars will have a slight mushy feeling to start and then when the brakes fully engage it feels firm though so it doesn't sound too strange imo.
I know i have some aftermarkets installed by the previous owner that grab initially and then have a bite to them that takes a bit more pedal. Considering you just did a fluid flush there could be air in the system still though as you've suspected.. Most cars will have a slight mushy feeling to start and then when the brakes fully engage it feels firm though so it doesn't sound too strange imo.
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spaike97 (02-23-20)
#3
Driver School Candidate
Thread Starter
When were your brake pads last changed? Fluid level is good obviously?
I know i have some aftermarkets installed by the previous owner that grab initially and then have a bite to them that takes a bit more pedal. Considering you just did a fluid flush there could be air in the system still though as you've suspected.. Most cars will have a slight mushy feeling to start and then when the brakes fully engage it feels firm though so it doesn't sound too strange imo.
I know i have some aftermarkets installed by the previous owner that grab initially and then have a bite to them that takes a bit more pedal. Considering you just did a fluid flush there could be air in the system still though as you've suspected.. Most cars will have a slight mushy feeling to start and then when the brakes fully engage it feels firm though so it doesn't sound too strange imo.
Sounds like you're right. Maybe I'm just a little paranoid since it's my first time flushing brakes.
#4
Lexus Test Driver
iTrader: (2)
How did you bleed them? Vacuum bleeding can lead to a spongy pedal. Pressure bleeding is best!
Pressure bleeding starting at RR, LR, RF, LF with a helper by having them build pressure at the MC, you crack bleeder ONLY while they are pressing on brake pedal. Promptly seal bleeder Before they allow the pedal to rise.
When done, press the pedal again, build pressure and tap on the calipers with a hardwood block to free air bubbles, open the bleeder letting the air escape, seal the bleeder. Repeat 3x per brake. PS tap straight up, not in....
The reward is any motion to the pedal and the brakes are active.
Pressure bleeding starting at RR, LR, RF, LF with a helper by having them build pressure at the MC, you crack bleeder ONLY while they are pressing on brake pedal. Promptly seal bleeder Before they allow the pedal to rise.
When done, press the pedal again, build pressure and tap on the calipers with a hardwood block to free air bubbles, open the bleeder letting the air escape, seal the bleeder. Repeat 3x per brake. PS tap straight up, not in....
The reward is any motion to the pedal and the brakes are active.
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