I have a 2004 Dodge Grand Caravan with brake problems. I have recently installed new front rotors and pads as well as rear shoes and cylinders. My brakes still will not firm up. When I initially press on the brake pedal I get resistance but when I slightly lighten on the pressure on the pedal and push repeating the previous process the pedal goes clear to the floor with no brakes whatsoever. Can the ABS system cause this or is my Master Cylinder at fault?
2007-03-03 08:05:37 · 12 answers · asked by Kevin B 1 in Cars & Transportation ➔ Maintenance & Repairs
the brake lines may be bad or maybe just need to be bled
2007-03-03 08:10:02 · answer #1 · answered by aarika 4 · 0⤊ 1⤋
If the pedal was firm prior having brakes done, I would say air got into the system replacing the rear wheel cylinders. If the pedal problem was existing before the front & rear brake work, it could be a master cylinder problem or ABS module problem; hope it is master cylinder because an ABS module is usually not cheap. Being a 2004 model, could the vehicle be still under waranty?
2007-03-03 18:42:59 · answer #2 · answered by 08montanasv6 3 · 0⤊ 0⤋
you possibly have air in the brake line, contaminants (like moisture) in the line, or your master cylinder is bad. It's possible one of the slave cylinders is bad, even though your replaced them, but that should show up as a leak. Your ABS system won't cause that to happen.
You said you replaced the rear slave cylinders. I'm betting you have air in the lines. Pay to have them pressure bled. It's worth it.
Having them pressure bled and that will eliminate air and contaminants. If that doesn't eliminate the problem you know where to look next. Don't buy rebuilt brake parts, like the master cylinder or wheel cylinders. If you have to replace the MS, you need to pressure bleed the system again.
2007-03-03 16:14:28 · answer #3 · answered by Sarge1572 5 · 0⤊ 0⤋
Did you bleed the brakes when you replaced the cylinders? you should have.
If not you probably have air in the system. Brake fluid doesn't compress but air does, thus your pedal goes all the way to the floor. You could also have left somthing loose. check for leaks are the cylinders you replaced.
2007-03-03 16:36:11 · answer #4 · answered by Answer 2 · 0⤊ 0⤋
If you have an ABS system chances are it has gotten air in the lines especially if you changed the cylinders and didn't bleed them brakes. although you need a special tool in the abs systems. If you don't have an abs system just bleed the brakes if that doesn't help take it in
2007-03-03 16:10:11 · answer #5 · answered by ja man 5 · 0⤊ 0⤋
If you arent seeing a loss of brake fluid, the master cylinder is bad if you bled the brakes properly..
2007-03-03 16:16:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Try Bleeding them,that should fix the problem...if not...then have someone check out the master cylinder it may be leaking also.....good luck.
2007-03-03 16:24:47 · answer #7 · answered by PT 1 · 0⤊ 0⤋
sounds like you got air in the lines when you changed parts. happens. just bleed the brakes until only fluid comes out and no air bubbles.
2007-03-03 16:08:24 · answer #8 · answered by Anonymous · 2⤊ 0⤋
You may have gotten air in the system when you did the change.
2007-03-03 16:14:06 · answer #9 · answered by Beau R 7 · 0⤊ 0⤋
the computer controlling the abs is at probably at fault.........a diagnostic check at a dealer can identify the problem.....trading it for a Ford or GM product is the best solution!......
2007-03-03 16:13:29 · answer #10 · answered by Wayne S 1 · 0⤊ 1⤋