jackdog1
New Member
This isn't something I need solved, I'm just posting this in case anyone else has the same problem.
I had replaced my front rotors and pads a month ago, but had accidentally undone the driver's side brake line connector bolt, spilling a bit of brake fluid and apparently letting some bubbles in to the line. I bled the affected line, pumping the brakes several times, and several bubbles came out, but the brakes never felt quite as tight as before.
Earlier today, I was driving when the brakes suddenly became very spongy and the brake pedal had to be pushed almost all the way to stop the car. I bled the same brake again, and an air bubble immediately came out. Afterwards, the brakes were as tight as when I first bought it. What I figured out later was that the last bubble was trapped in the piston, and worked its way into the line while I was driving, causing the sudden pressure drop.
So if anyone has a similar issue with the pressure dropping in the middle of driving, instead of assuming something like a cracked piston or ruptured break line, just try simply bleeding the brake again (pump it at least 4 times, topping of the fluid in between).
Sent from my XT1064 using Tapatalk
I had replaced my front rotors and pads a month ago, but had accidentally undone the driver's side brake line connector bolt, spilling a bit of brake fluid and apparently letting some bubbles in to the line. I bled the affected line, pumping the brakes several times, and several bubbles came out, but the brakes never felt quite as tight as before.
Earlier today, I was driving when the brakes suddenly became very spongy and the brake pedal had to be pushed almost all the way to stop the car. I bled the same brake again, and an air bubble immediately came out. Afterwards, the brakes were as tight as when I first bought it. What I figured out later was that the last bubble was trapped in the piston, and worked its way into the line while I was driving, causing the sudden pressure drop.
So if anyone has a similar issue with the pressure dropping in the middle of driving, instead of assuming something like a cracked piston or ruptured break line, just try simply bleeding the brake again (pump it at least 4 times, topping of the fluid in between).
Sent from my XT1064 using Tapatalk
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