Brakes spongy after new parts ... Any ideas?
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Joined: Jul 2010
Posts: 23
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From: Jefferson City, MO
Car: 87 Z28
Engine: 358 SBC
Transmission: 700r4
Axle/Gears: 373 auburn posi 28 spline
Brakes spongy after new parts ... Any ideas?
I recently put new front brake hoses, calipers, rotors and pads on the front of my z28 and filled the master cylinder back up and blead the front brakes and now my brakes are really spongy and won't hardly stop the car. I did have the calipers off for a day while I was busy with other things and the side for the front brakes in the master cylinder drained empty. I don't think I should have to bleed the rears because they shouldn't have gotten air in them. Is there something I need to do because I ran the one side on the resivour empty? Any help would be appreciated.
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 23
Likes: 0
From: Jefferson City, MO
Car: 87 Z28
Engine: 358 SBC
Transmission: 700r4
Axle/Gears: 373 auburn posi 28 spline
Re: Brakes spongy after new parts ... Any ideas?
I was wondering if that would be the case. Can I do that while it's still bolted onto the booster in the car?
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Joined: Aug 2006
Posts: 12,813
Likes: 110
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Brakes spongy after new parts ... Any ideas?
You can bleed it with it bolted in to the car. Power brakes or manual brakes dosen't matter either. You just won't have full pressure with the engine off with power.
In the future when you take off a caliper or line, if you know or think it's going to be off for awhile put a vacuum line cap on the end of the line. Should hold your fluid in for you.
In the future when you take off a caliper or line, if you know or think it's going to be off for awhile put a vacuum line cap on the end of the line. Should hold your fluid in for you.
Thread Starter
Junior Member
Joined: Jul 2010
Posts: 23
Likes: 0
From: Jefferson City, MO
Car: 87 Z28
Engine: 358 SBC
Transmission: 700r4
Axle/Gears: 373 auburn posi 28 spline
Re: Brakes spongy after new parts ... Any ideas?
You can bleed it with it bolted in to the car. Power brakes or manual brakes dosen't matter either. You just won't have full pressure with the engine off with power.
In the future when you take off a caliper or line, if you know or think it's going to be off for awhile put a vacuum line cap on the end of the line. Should hold your fluid in for you.
In the future when you take off a caliper or line, if you know or think it's going to be off for awhile put a vacuum line cap on the end of the line. Should hold your fluid in for you.
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