need help desperately
Thread Starter
Intermediate
Joined: Sep 2008
Posts: 43
Likes: 0
From: charlton NY
need help desperately
so last week my brakes locked up in traffic. to make a long story short i rode it home and basically destroyed everything, the brakes overheated and locked on both sides. i replaced both calipers, rotors, pads, and hoses. after that i couldnt get it to bleed, and eventually traced it to the master cylinder, after replacing that i bled the brakes and everything seemed fine. i smelt some burning as i did when they locked up, but it soon went away and i assumed it was grease or something burning off. well now my right front brakes are locking up again, but this time not so bad, i cant feel it, but they get really hot. the left side is right as rain though, and im confused. i re bled the brakes, and noticed that with my foot on the pedal depressing it, i could have the right front bleeder wide open with no fluid coming out. anybody have advice or experience with this? this is my daily driver and if i dont fix it, i cant work to make money to fix it. im hoping its not abs related, because i think that module is expensive
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
so last week my brakes locked up in traffic. to make a long story short i rode it home and basically destroyed everything, the brakes overheated and locked on both sides. i replaced both calipers, rotors, pads, and hoses. after that i couldnt get it to bleed, and eventually traced it to the master cylinder, after replacing that i bled the brakes and everything seemed fine. i smelt some burning as i did when they locked up, but it soon went away and i assumed it was grease or something burning off. well now my right front brakes are locking up again, but this time not so bad, i cant feel it, but they get really hot. the left side is right as rain though, and im confused. i re bled the brakes, and noticed that with my foot on the pedal depressing it, i could have the right front bleeder wide open with no fluid coming out. anybody have advice or experience with this? this is my daily driver and if i dont fix it, i cant work to make money to fix it. im hoping its not abs related, because i think that module is expensive
Could be either a bad flex line or a bad ABS unit. You may have to pull the flex line off to find out. Probbly not a caliper. Did you ever check the clearance on the booster actuator rod.
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
Which brakes do you have JL9 or J55?
Did you inspect the caliper brackets and make sure everything was clean and smooth when you put them back together?
If J55 did you use new pins? Use any lube on them?
Something is binding somewhere, or your hard brake lines are corroded on the inside and blocking fluid movement. Brakes are pretty basic
Did you inspect the caliper brackets and make sure everything was clean and smooth when you put them back together?
If J55 did you use new pins? Use any lube on them?
Something is binding somewhere, or your hard brake lines are corroded on the inside and blocking fluid movement. Brakes are pretty basic
Le Mans Master
Joined: Jan 2006
Posts: 5,620
Likes: 206
From: Orlando FL
I hate to say but on that vintage car, many of those problems were a clogged ABS unit. If the flex lines are new you're probably going to end up at the ABS unit.
Only the hard line is between the flex line and ABS. Keep up the troubleshooting to make sure. Pull the hard line off the ABS for that wheel and see if any fluid comes out when you step on the brake.
Only the hard line is between the flex line and ABS. Keep up the troubleshooting to make sure. Pull the hard line off the ABS for that wheel and see if any fluid comes out when you step on the brake.
Melting Slicks
Joined: Sep 2008
Posts: 2,376
Likes: 110
From: Cherokee National Forest TN
I have run into rusted closed bleeder screws on old cars, maybe remove it & check that it is clear.
It may be the ABS pump if only one front caliper is dragging.
It may be the ABS pump if only one front caliper is dragging.
Last edited by Churchkey; Jun 22, 2011 at 12:41 AM.
Le Mans Master
Joined: Mar 2001
Posts: 7,999
Likes: 14
From: Life is just one big track event. Everything before and after is prep and warm-up and cool-down laps
Cruise-In III Veteran
Cruise-In IV Veteran
St. Jude Donor '12
I hate to say but on that vintage car, many of those problems were a clogged ABS unit. If the flex lines are new you're probably going to end up at the ABS unit.
Only the hard line is between the flex line and ABS. Keep up the troubleshooting to make sure. Pull the hard line off the ABS for that wheel and see if any fluid comes out when you step on the brake.
Only the hard line is between the flex line and ABS. Keep up the troubleshooting to make sure. Pull the hard line off the ABS for that wheel and see if any fluid comes out when you step on the brake.
Hard lines or ABS has a corrosion issue. Fluid makes it past the obstruction but then the pressure doesn't release.[SoapBox] one of the problems is people do NOT change their brake fluid. Brake fluid attracts moisture from the air, turns acidic and starts corroding brake lines and parts from the INSIDE. When bits of corrosion break off they can casue one way check valves in the ABS unit or the lines themselves. Please for the love of your car replace ALL the brake fluid every two (2) years![/SoapBox]
