power booster test
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
power booster test
M brakes went "squishy" this weekend. Is there a way to test and see if the power booster went belly up? I did replace my front rotors so there just might be air in the system but I thought I'd check the booster anyway.
And also if it is my power booster is it possible to get rid of it and go manual brakes?
Thanks in advance.
And also if it is my power booster is it possible to get rid of it and go manual brakes?
Thanks in advance.
Instructor
Joined: Jul 2003
Posts: 172
Likes: 0
From: Richmond Virginia
Re: power booster test (TTop Tony)
Usually when the power booster fails the brake pedal gets very hard with reduced stopping power just the opposite of what your describing, I think you have air in your lines and need to bleed them out.
Melting Slicks
Joined: Jan 2004
Posts: 2,672
Likes: 1
From: New Cumberland PA
Re: power booster test (TTop Tony)
Sounds like it may be somethong other than the booster. Probably the biggest indication of a bad booster is the lack of assist it provides. The pedal would be firm and a lot more leg would be needed to stop the car. I changed my booster just a couple of weeks ago. If it were leaking as mine was, it should be audible. A quick check is to spray starting fluid by the booster where it attaches with the master cylinder. If the rpms go up, then it's bad. There are probably other ways to check it. You do not want to change this unless you have to and I speak from experience.
Mike
Mike
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
Re: power booster test (mandm1200)
Ok guys thanks. It did start after I replaced the rotors so there must be air in the system. Yeah I looked at removing the booster once to paint it but quickly decided it wasn't worth it.
Thread Starter
Drifting
Joined: Jun 2000
Posts: 1,476
Likes: 1
From: Mt Juliet TN
Re: power booster test (R 73 454)
What really kills me is that I had the dashboard apart at one time and could have easily gotten the booster out but it never dawned on me. :crazy:
Melting Slicks
Joined: Feb 2004
Posts: 2,435
Likes: 0
From: largo florida
Re: power booster test (TTop Tony)
I replaced my booster on my 69 mustang, wasnt bad. Bad is trying to replace the vettes parking brakes and hardware with the spindle on. I made up quite a few new swear words. :cuss
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Melting Slicks
Joined: Jul 2001
Posts: 2,609
Likes: 12
From: Massapequa Park NY
Re: power booster test (TTop Tony)
I learned my leason with the Mustang, the booster failed as I was stopping at an intersection with my 6 year old in the car with me. Luckily no one was comming the other way. The brakes went hard as a rock & stalled the engine :eek: Must have been an :blueangel: watching over us that day.
The dash is currently out of the Vette, as well as the booster. I'll have it rebuilt before it goes back in :yesnod:
The dash is currently out of the Vette, as well as the booster. I'll have it rebuilt before it goes back in :yesnod: