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Brake Lines

Tiny
LARRY ARNOLD
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 152,344 MILES
I need a copy of a diagram for the entire braking system from the master cylinder to the wheels
Thursday, April 22nd, 2010 AT 11:36 AM

29 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
I do have a schematic, I can tell you. From the master cylinder, two lines go to the ABS module. From there, you have lines that go to the proportioning valve. Then you have one to each front tire, one to each rear wheel cylinder (or caliper if you have 4 wheel disc). Here is what we have in the diagrams. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Thursday, April 22nd, 2010 AT 1:39 PM
Tiny
STEVEKAZ1974
  • MEMBER
  • 1 POST
  • 1997 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
How do you dissable the antilock braking system?It seems to keep pulsating every time I apply the brakes.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
They are supposed to pulse, but if they do it all the time, then most likely you have a warped rotor on one in the front.

You can remove rotors and lay on flat surface and check for any warpage, generally if they are warped they need to be replaced.

No mechanic would disable the ABS system, if you were to get into an accident after disabling system, they could be held responsible.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
WILL DANNER
  • MEMBER
  • 4 POSTS
  • 1999 PONTIAC GRAND AM
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 67,000 MILES
Abs light will not go out
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Have you had the computer scanned?
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
WILL DANNER
  • MEMBER
  • 4 POSTS
I had a shop scan it and thay told me that the abs pump was froze up! So I took apart and tested every thing. Cleand it real good put it back togeather and the it seems to work just fine. I also did the tests in the book, look at all the wireing.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
I'm glad you got it fixed. That is the nice thing about today's cars. The computer can tell you where the problem is coming from most of the time.

Let us know if you have questions in the future.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
WILL DANNER
  • MEMBER
  • 4 POSTS
Sorry I did all that light still on
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
CHRIS GIFF
  • MEMBER
  • 1 POST
  • 1999 PONTIAC GRAND AM
  • 138,000 MILES
I changed front pads and rotors, car was on jack stands. After finishing I disengaged the ebrake to take it for a spin, when I put it in reverse at idel speed the car would not move. I jacked up the rear to find the passenger sid rear wheel will not move freely
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Is the pump working?
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
Sounds like the parking brake cable is rusted and stuck in the partially applied position. Look at the cable right in front of the right rear wheel where it exits the casing. If about 1/2" of it is shiny, it's pulled out and not retracting freely. By flexing that casing, the cable might release under spring pressure.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
WILL DANNER
  • MEMBER
  • 4 POSTS
Yes the pump is working and I cheacked wheele sensers and all wireing coneters and as much as a ceep manual will take me!

Sorry I need to be more clear.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Don't worry. You have been very clear. I hate to say it, but I need you to have the computer scanned again to see if it has the same code. If it was out and working for a short period of time and came back on, there may be a new code.

I don't know if you paid to have it scanned, but most nationally recognized parts stores will do it for free.
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Monday, October 22nd, 2018 AT 5:07 PM (Merged)
Tiny
JODICONRAD
  • MEMBER
  • 2 POSTS
  • 1999 PONTIAC GRAND AM
  • 14,000 MILES
I just had new brake pads rotors and calipers replaced, three days later the brake pedal was stuck would not move dwn when I pressed pedal almost hit car in front but swerved to avoid it, is there something the mechanic did not check or is this a new issue?
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
If was something he did, it would have been evident immediately.

New issue. Could be a failed booster. Get it checked.

Roy
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
JODICONRAD
  • MEMBER
  • 2 POSTS
Thanks Roy, it was questionable because after all parts were replaced, had to go back and have brakes adjusted. Was a different mechanic and was not pleased with having to return a second time. Now a third time. Was not sure if it was master cylinder or booster and if it was something overlooked. Now I know I do not have to blast this guy who is a relative.
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good luck, be nice
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
KICKIN79GP
  • MEMBER
  • 2 POSTS
  • 1996 PONTIAC GRAND AM
Brakes problem
1996 Pontiac Grand Am 6 cyl Front Wheel Drive Automatic

My son has a '96 Pontiac Grand Am. The problem we are having involves the brakes. The brakes went out last June and the car has been sitting until now. The brake pod was empty so I figured he blew another wheel cylinder or popped a line. My son told me that his brakes went out right away not slowly fading. I just finally tried to find out the problem and filled the pod with new brake fluid and pumped the pedal in hopes that I could see where the leak was. When I inspected all areas of the brake lines, calipers and wheel cylinders I could not see any wet areas. Then I checked the brake pod again and noticed that the fluid level had not decreased, not even after pumping the brakes about a hundred times with the car running and with it off. Does anyone know what might be causing this? I thought that maybe it was the master cylinder, but I do not want to mess with the anti-lock brake set up if I don't have to. I am also frustrated by where the original fluid went and why the new fluid won't flow. Any thoughts or suggestions would be greatly appreciated as we cannot afford to take it any where to have it looked at since I've been laid off for over a year now. Thanks in advance for any help on this issue!
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
MOTORPOOLMAC
  • MEMBER
  • 1 POST
Same problem exactly on a 2000 Grand Am. HELP!
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)
Tiny
THISISAPROMISE
  • MEMBER
  • 1 POST
  • 1995 PONTIAC GRAND AM
Brakes problem
1995 Pontiac Grand Am 4 cyl Front Wheel Drive

My car's Brake light on the dash came on and by the time I was able to check the brake fluid, it was completely empty. There was no tension on the pedal whatsoever.
I have changed the shoes, pads, drums, and rear lines.
Still cannot get ANY pressure or tension in the pedal.
Any ideas?
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Monday, October 22nd, 2018 AT 5:08 PM (Merged)

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