1987 Brake help please
Thread Starter
Instructor
Joined: Sep 2007
Posts: 129
Likes: 0
From: Ewa Beach Hawaii
1987 Brake help please
Looking at the brakes on my 1987 Corvette, it seemed like the front drivers side was not working and car pulling extremely right upon braking. The passenger side checked out ok, went to the drivers side and was not gettng any fluid out upon bleeding. Disconnected all the lines and was not getting any fluid on the drivers side. I traced the lines to the ABS modulator in the rear of the car. Could the modulator be faulty for the drivers side? Looks to be that way since all brake lines go through that modulator, that is the only thing I can think of. Any thoughts?
BTW a new modulator is $700, I do not want to do that if this would be a somewhat easy fix. Please help.
Thank you.
BTW a new modulator is $700, I do not want to do that if this would be a somewhat easy fix. Please help.
Thank you.
Burning Brakes
Joined: Jun 2007
Posts: 804
Likes: 0
From: Stockton California
Brake problem.
I had a problem like that at one time, the rubber brake hose had closed off inside. Have you tried breaking the connection on the inlet side of the hose and see if there brake fluid to that point? If you have fluid to the right side you should be getting fluid to the drivers side also.
Safety Car
Joined: Jul 2004
Posts: 3,845
Likes: 30
......remove the lines from the master cylinder and verify that you have fluid being pushed out of it....then, remove the line AT THE START of the flex lines at the wheel/corner in question and verify fluid...next, reattach and then detach the flex line as it goes into the caliper and verify fluid......lastly, reattach and verify fluid out of the bleeder.........where the fluid stops you have the problem (such as caliper)........if you have no fluid at all where i have mentioned, you'll need to do the above and follow back to the abs, etc......
Last edited by Da Mail Man; Sep 25, 2007 at 07:47 AM. Reason: spelling
Thread Starter
Instructor
Joined: Sep 2007
Posts: 129
Likes: 0
From: Ewa Beach Hawaii
Took off the rubber hose by the caliber, no fluid. Disconnected the hard line leading up to the rubber hose, no fluid. Looks like the ABS modulator has 3 out lines, one to the rear brakes, one to the LF, and one to the RF. I guess I will take those lines off today and see if any fluid comes out.
Le Mans Master
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Looking at the brakes on my 1987 Corvette, it seemed like the front drivers side was not working and car pulling extremely right upon braking. The passenger side checked out ok, went to the drivers side and was not gettng any fluid out upon bleeding. Disconnected all the lines and was not getting any fluid on the drivers side. I traced the lines to the ABS modulator in the rear of the car. Could the modulator be faulty for the drivers side? Looks to be that way since all brake lines go through that modulator, that is the only thing I can think of. Any thoughts?
BTW a new modulator is $700, I do not want to do that if this would be a somewhat easy fix. Please help.
Thank you.
BTW a new modulator is $700, I do not want to do that if this would be a somewhat easy fix. Please help.
Thank you.
Thread Starter
Instructor
Joined: Sep 2007
Posts: 129
Likes: 0
From: Ewa Beach Hawaii
Bad news. I rechecked the modulator and it indeed does not work to the LF wheel. I took off both the lines going to the front brakes and fluid was only coming out of one of them. The modulator is not servicable. I emailed GM Parts Direct as their prices are usually the best but this thing retails for about $700. I guess I will try the number in the above post.
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Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
Not an uncommon problem for these year model cars. Have read about this same problem many times on the Forum. Most do get a used unit which works out fine.
If you fill your profile out and we knew where you were, some can recommend an local used parts yard to possible find the part easier and more local.
If you fill your profile out and we knew where you were, some can recommend an local used parts yard to possible find the part easier and more local.
Thread Starter
Instructor
Joined: Sep 2007
Posts: 129
Likes: 0
From: Ewa Beach Hawaii
Not an uncommon problem for these year model cars. Have read about this same problem many times on the Forum. Most do get a used unit which works out fine.
If you fill your profile out and we knew where you were, some can recommend an local used parts yard to possible find the part easier and more local.
If you fill your profile out and we knew where you were, some can recommend an local used parts yard to possible find the part easier and more local.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
