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Old Sep 13, 2005 | 02:55 PM
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brakes feel weak

I replaced my rotors,calipers,pads and slide pins with all new parts.I have noticed that the brakes now feel weak.I used to be able to lock up the brakes,then the ABS would kick in.
Now i cant get the brakes to lock up on a panic stop.
What can this problem be.
 
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Old Sep 13, 2005 | 03:01 PM
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my guess is that you got some pads that don't work as well as the OEM pads. Each manufacturer uses different formulas to make the friction material.
Also there have been numerous posts here on FTE that nothing works as good as OEM pads.
Did you do a complete brake fluid bleed after you did the job? If not I would start there. If that doesn't do it, see above.
 
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Old Sep 13, 2005 | 03:52 PM
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yes i did bleeb the brakes also chage out the fluid.The pads that i installed are OEM eqipment.
 
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Old Sep 13, 2005 | 03:57 PM
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Are you sure you didn't get ANY air in there... If you did, The only way to bleed a 4 wheel ABS system is with a computer that can actuate the ABS module and purge the air. If you don't, well, it usually results in the situation you describe...
 
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Old Sep 13, 2005 | 04:07 PM
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I dont think so but never know.When i bleed them i seen the air come out,then they stoped and i bleed them for about anther 5 minites just to make sure i got all the air out.I used two quarts of brake fluid,just to make sure i got it right.
 
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Old Sep 13, 2005 | 05:10 PM
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Did you have a partner pumping the pedal? Or just let it dribble through?
 
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Old Sep 13, 2005 | 05:12 PM
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I had someone pumping the pedal.Down open up closed etc.etc.etc.
 
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Old Sep 13, 2005 | 06:37 PM
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Originally Posted by blueeyes2478
I had someone pumping the pedal.Down open up closed etc.etc.etc.
Sounds like you did it right. Hmmm, I would be suspicious of the brake pads being an inferiour material then.
 
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Old Sep 13, 2005 | 06:39 PM
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I just thought of something else... With all the bleeding, and new parts, might you have gotten some grease or brake fluid on the pads/rotors? You can try cleaning everything with brake cleaner, but you'll probably have to replace the pads...
 
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Old Sep 13, 2005 | 07:31 PM
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I cleaned the pads and rotors after i did the install,before i drove it.
 
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Old Sep 14, 2005 | 01:03 PM
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Did you bed them or seat them in properly? Multiple slow downs from 60-5 without stopping?
 
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Old Sep 14, 2005 | 01:58 PM
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Yes did that 4 times with out coming to a full stop,then drove around for a bit to let them cool before i parked the truck for the day.
 
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Old Sep 14, 2005 | 03:04 PM
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Originally Posted by blueeyes2478
I cleaned the pads and rotors after i did the install,before i drove it.
What specifically did you use to clean the pads and rotors?
 
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Old Sep 14, 2005 | 03:34 PM
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brake cleaner,i think is was cnc.
 
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Old Sep 14, 2005 | 03:52 PM
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Originally Posted by blueeyes2478
brake cleaner,i think is was cnc.

Sometimes the caliper pistons are a little difficult, and really require you to really step hard on the brake peddle to get them to functioning right. Have you tried that?
 
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