Brake issues: Please help

[meyers2211]

Ok i've spent about an hour searching trying to find and answer
94 vert wit 120k on it AODE to t-5 swap. Since i got it i have bought Cross drilled slotted rotors and new pads all the way around. The drv rear pad was at the metal and i believe it was no sitting properly when installed because the top of the pad was gone but bottom still had 1/8". The pass side was at 3/16" with a perfect wearing pattern. When removing the calipers because they would not depress i noticed that one of the caliper slides on the driver side was rusted in so after some penetrating oil and so brute force i got it out cleaned both slides(the two pins that slide on the outside of the calipers) Oh and both of the calipers didn't depress (they were both completely out and appeared frozen that way) So after getting both calipers to work properly and grinding off the rust off all the slides and regreasing all of them, the rear Duralast Gold pads were put on with brand new cross drilled slotted rotors. Then bleeded brakes. Ok so thats the status of the rear, the front brakes and rotors appear in good condition, pads have about 1/2" worth of life and rotors and clean and straight (or atleast appear)


Symptom #1:Got the car in august, and it seems that when i come to a stop i get a pulsating feel through my brake pedal, it doesn't feel like ABS but more like my brake pedal was being plucked three times with a spring. Its also pretty loud like as if you were striking a spring. Every1 who gets in my loves to ask wat the sound was. There is no pattern for this, and acts the same before and after rear brakes were done.

Symptom #2 Occasionally the ABS light comes on for the DRV Rear ABS sensor but comes and goes with no pattern. (Buddy at Pepboys ran the ABS for me) Possibly Because i let the calipers hang overnite while i painted them? Could of stretched out the sensor cable? Does it no matter what gear i am in.

Symptom #3: When i'm cruising i can hear a clicking noise and it goes away when the brakes are applied. Coming from the front left i think. This would make sense to be a warped rotor causing the rotor on high spots to kiss the rotor rite?

I have new pads and rotors for the front but have yet to install because i wanna make sure i get all the problems worked out. my questions are:

What the hell is the feeling thru the brake pedal?
If my calipers are bad how do you tell?
Anything i should look for with the bad ABS sensor.
and any other help would be really appreciated

thanks in advance Mark
tried to as descriptive and accurate as possible

 

[meyers2211]

ne1?

 

[Car Nut]

If you've got stock calipers on all corners, I'd consider replacing those with some Cobra ones at least. You might want to have a shop with proper measuring tools to figure out what all is wrong, unless you've got the tools and are familiar.

Your best bet is to pick up a front and rear brake kit with some new stainless steel lines and be done with it. Then you'll have better than stock brakes for the next several years.

Otherwise, hopefully someone here has some good ideas on a fix. My stock brakes started having issues and fixes only seemed to work for a while. I'd rather have a properly built brake system that is way better than stock and safer, too. Can't go wrong with a Cobra front and rear kit, becasue the kits come with all the parts you'll need to upgrade for a total cost of about $800. Sounds expensive, but consider that this is the most important part of the car.

 

[95cobradude]

sounds like the rotors are warped, sounds like u should take it all apart again and redo it. to check the calipers jack each wheel up and try to spin the wheel. if it spins freely the caliper is ok, if it doesn't spin the wheel is locked or u left the e brake on.

 

[slytherin]

I have read of guys buyin inferior rotors and having to have them turned right away to get the warpage out of them.

 

[meyers2211]

I have read of guys buyin inferior rotors and having to have them turned right away to get the warpage out of them.

cross drilled slotted rotors can't be turned, but the performance rotors stay so much cooler than stock that as long as u keep up wit the pads u'll never need to replace or turn them.

I'm looking to sell the car come spring so 800 bux on cobra brake's doesn't seem good.

I know that the driver side ABS sensor is intermittent, but how do i check that the ABS sensor is good?

 

[95cobradude]

u need a voltmeter to see if u have any ac voltage coming out of it. u live in lindenhurst, LI?

 

[meyers2211]

yea lindenhurst long island, check the voltage coming from where?

 

[bimmertech]

cross drilled slotted rotors can't be turned

yes they can, the brake lathe bits are fixed, not spring loaded and do not get caught in the holes.

the voltage check being reffered to is the abs wheel speed sensor. by turning the wheel by hand the sensor will create a signal, if it does not then the sensor is most liekly faulty. you never stated if there where any codes stored in the abs system.

 

[95cobradude]

im in smithtown, long island. like bimmertech said, unplug the abs connector, which you'll need to take the wheelwell cover out to get to it, set the voltmeter on ac voltage, and have a buddy spin the wheel. its a 2 pin connector so each lead of the meter will go to a pin on the abs connector. if u have any type of reading i would say the sensor is ok, no reading then sensor is bad.