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My brakes are shot, need a professional opinion?
1993 Dodge Stealth ES, 4-wheel disc brakes w/abs. Low brake pedal, new master cylinder properly bench bled, brakes bled properly so no air in the lines, no leaks. Need help to understand what could be wrong.
7 Answers
- 1 decade agoFavorite Answer
There's one important detail that you didn't mention when you said that you bled the brakes and or bench bled the Master Cylinder, that is were you using new Brake Fluid or Not? The other is, after putting the Master Cylinder back on, did you do a Full Brake Fluid Flush?
The Reason why I ask these Questions is to make the point that All brake Fluid when introduced to the open Atmosphere (Air), the fluid will absorb the air and become contaminated. On top of that, depending on where you live, will determine how much Moisture and Air is in the System.
The other will depend on what type of ABS you have, such as do you have Traction and Stability Control Assist, because if you do, your HCU (Hydraulic Control Unit) could have air trapped in it.
Hope this Helps out........Good Luck
Source(s): Ford Certified Technician and a UTI Graduate - Anonymous1 decade ago
You said they were properly bled, so I'll take your word for it and not bring up the issue of air in the lines or the master.
If you replaced the master cylinder, did you compare it in all aspects with the one it replaced? It's possible the interface area (whether it's a hole the depression rod goes into or whatever) is lower than the original m/c.
It's also possible that the m/c you bought to replace the oem unit has the inlet/outlet holes further down the length of the hydraulic ram, so the pedal travels further before the juice gets squirted.
Obviously something is different. If it were mine and I didn't like the low position of the brake pedal, I'd do something Mickey Mouse like dropping a ball bearing down the hole in the a&& end of the master cylinder before putting the rod from the brake pedal into it. That would raise the pedal significantly.
I always try to remedy things properly, but sometimes you just end up with stuff that doesn't work without modification. I've been known to break out the welder and build up the end of a pushing-rod with some brass to get the kind of results I'm looking for.
I've also been known to make BIG mistakes! So measure twice and cut once.
- Anonymous1 decade ago
If you have a spongy pedal obviously there is an air pocket in the lines somewhere. I would suggest going to a brake shop that owns a power bleeder. It probably costs around 50 bucks but this is a tank that is pressurized and it attaches to the top of the master cylinder. I guarantee this will fix your problem.
Source(s): ase master certified technician - Anonymous1 decade ago
still air in it...new brake systems r hard to bleed...im really impressed u bench bled master....my brother in law did same and ended having it bled with a mechine.
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- mister ssLv 71 decade ago
either there is still air in the system or you need to adjust the rear calipers, did you pump the emergency brake a few times to set the brakes up on the rear?