homelessduck
Full Access Member
Man I cannot get these brakes to firm up. Every bleed point has a solid stream of fluid , zero air. But it just won't firm up. New master cylinder.. Any ideas?
Soft brake pedal
- Thread starter homelessduck
- Start date
79jasper
Chickenhawk
Adjusted the rears?
May hit some gravel and lock them up a few times.
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May hit some gravel and lock them up a few times.
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homelessduck
Full Access Member
Yep , adjusted rears. They were a little tight if anything. Abs light is on , fluid isn't low.
homelessduck
Full Access Member
Just bleed everything again , including the rabs. Still soft. I didnt remove the hex plug on the rabs , couldn't get a wrench on it. Think that's my issue? Only other thing I can think of is the new master is bad. Guess I'll exchange it and swap it out.
79jasper
Chickenhawk
That end plug isn't a bleeder. I've heard of taking the piston out, bleeding, put it back in, then bleed again.
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homelessduck
Full Access Member
Ya , thats what i meant lol. I bleed the bleeder on the rabs but didnt pull the piston out first , like everyone seems to do.
IDIBRONCO
IDIBRONCO
Did you bleed the new master cylinder?
homelessduck
Full Access Member
Yep , bench bleed and bleed on the truck .
homelessduck
Full Access Member
When I first put it on the pedal started to get hard then went back to soft after I switched to another bleeder. Figured it was air , but maybe the master failed internally?
IDIBRONCO
IDIBRONCO
I figured that you did, but you know what they say about assuming. It could have failed internally. What do you mean that you switched to another bleeder?
homelessduck
Full Access Member
I was on the rear left wheel when the brake pedal started firming up. When I switched to the front right bleeder the pedal got soft again and never firmed back up.
IDIBRONCO
IDIBRONCO
I thought you meant that you switched to a different type of bleeding tool on your master cylinder. My mistake.
79jasper
Chickenhawk
It's been said that when bleeding, don't let the pedal go all the way down. It can damage the piston or internal seals.
But, since it started to firm up, I would say it could just be trapped air somewhere. Can you do a reverse bleed?
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But, since it started to firm up, I would say it could just be trapped air somewhere. Can you do a reverse bleed?
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homelessduck
Full Access Member
Well I did do it once with my vacuum bleeder , then tried the good old pumping and holding. Didn't make a difference .
79jasper
Chickenhawk
Are the rear wheel cylinders installed right side up?
The bleeder should be above the line.
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The bleeder should be above the line.
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