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Car pulls hard right under braking

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Old Oct 15, 2005 | 07:00 PM
  #1  
scanman717's Avatar
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Joined: Aug 1999
Posts: 195
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From: Palmetto, FL
Car: 92 Z/28 Convertible
Engine: LB9
Transmission: Mad Dog Auto 700R4
Car pulls hard right under braking

So, here's the story. The car pulls really hard right when I step on the brakes. I replaced both rotors, calipers, pads, and rubber lines a month ago, still have the same problem today....

I even went and exchanged the left caliper again and it still has the problem. In fact if you look at the rotor you can still see the original machining marks from when I bought the rotors a month ago. The right caliper looks like normal wear.

When I have the car jacked up and someone in the car, they step on the break and I cannot turn the left tire.

I have bled the brakes several times, both with someone in the car pushing on the pedal and also with my vac bleeder.

Any other ideas??
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Old Oct 16, 2005 | 11:12 AM
  #2  
dankhound's Avatar
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Joined: Jan 2002
Posts: 1,322
Likes: 1
From: Bloomingdale,IL
Car: 91 RS
Engine: 305 Tbi (L03)
Transmission: 700r4
Try replacing the line from the master to the left front. It may be partially plugged or something.
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Old Oct 16, 2005 | 10:45 PM
  #3  
Stekman's Avatar
TGO Supporter
 
Joined: Jul 2003
Posts: 4,803
Likes: 2
From: Grand Rapids, MI
Car: Z28
Engine: Sb2.2 406
Transmission: Jerico 4 speed
Axle/Gears: Ford 9" 3.60
How much fluid did you get out the left front versus the right front when you bled the system?
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Old Oct 17, 2005 | 07:21 AM
  #4  
scanman717's Avatar
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Joined: Aug 1999
Posts: 195
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From: Palmetto, FL
Car: 92 Z/28 Convertible
Engine: LB9
Transmission: Mad Dog Auto 700R4
hmmm... Can't say I noticed a difference. Wasn't really paying attention to the volume at the time, but thinking about it, the bleed I just did Saturday on the left side seemed like it didn't have as much volume as I thought it should...

I am not opposed to a pulling everything and rebuilding, or whatever is necessary, just don't want to if I don't have to.

In the meantime, anyone know of a good tutorial on removing/replacing/rebuilding entire brake system from reservoir down??
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Old Oct 26, 2005 | 10:30 AM
  #5  
scanman717's Avatar
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Joined: Aug 1999
Posts: 195
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From: Palmetto, FL
Car: 92 Z/28 Convertible
Engine: LB9
Transmission: Mad Dog Auto 700R4
Where can I get hard lines?

They don't seem to be available from the local Autozone. Any online places I can order from??

Thanks
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Old Oct 26, 2005 | 02:10 PM
  #6  
ebmiller88's Avatar
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Posts: 6,420
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From: Fort Mill, SC, USA
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
www.finelinesinc.com

www.inlinetube.com

www.classictube.com

Ed
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Old Oct 27, 2005 | 06:59 PM
  #7  
MurcoRS's Avatar
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Joined: Dec 2003
Posts: 690
Likes: 2
From: Minneapolis, MN
Car: 1989 Camaro RS
Engine: ZZ4 350
Transmission: T-5
Axle/Gears: BW 9-bolt w/3.73
If you have "new" calipers, new hoses, no kinked lines and you are still experiencing this symptom, it's your combination valve. Before doing any work on your brakes did you have super dark fluid in the master cylinder? If so that was seal material and it's clogged the combination valve (aka - prop valve) front ports. I'd go ahead and replace the master cylinder (new only) as well, because it's due.
PM me for more info...
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Old Oct 28, 2005 | 09:51 PM
  #8  
scanman717's Avatar
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Joined: Aug 1999
Posts: 195
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From: Palmetto, FL
Car: 92 Z/28 Convertible
Engine: LB9
Transmission: Mad Dog Auto 700R4
Was afraid of that

I was afraid someone was going to tell me that.. The fluid is pretty dark...

So, can someone give me idiot proof directions to bench bleeding the master cylander, and snything else I need to watch out for??

Thanks
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Old Oct 31, 2005 | 07:02 PM
  #9  
camaronewbie's Avatar
Supreme Member
 
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Before you tear into the braking system again - have you had the alignment checked? It's my experience that, while a bad brake can make the car drift one way or the other during braking, it's much less noticable than when the same drift is caused by alignment issues. Before I tore the braking system all down, I'd spend $39.95 on an alignment.
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Old Oct 31, 2005 | 08:07 PM
  #10  
scanman717's Avatar
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Joined: Aug 1999
Posts: 195
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From: Palmetto, FL
Car: 92 Z/28 Convertible
Engine: LB9
Transmission: Mad Dog Auto 700R4
Yep, had that done about 3 weeks ago... Besides, I am sure it is not the alignment, as the new rotor on the left side you can still see the original tool marks from when the rotor was ground.. Definitely the brakes aren;t squeezing on that side.
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Old Oct 31, 2005 | 09:07 PM
  #11  
Jon92TA's Avatar
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Joined: Jul 2001
Posts: 783
Likes: 1
From: OC, CA
Car: 92 Trans Am - Sold
Also have your ball-joints checked. I replaced everything too and it turns out a really wiped out ball joint cause a bad pull.
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Old Nov 3, 2005 | 03:56 PM
  #12  
Th33nforcer's Avatar
Junior Member
 
Joined: Mar 2005
Posts: 67
Likes: 0
From: Somewhere in Paradise
Car: '88 Camaro
Engine: 2.8L - V6
Could be a wheel bearing jamming your caliper too...check that as well.
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