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Brake problem help please!!

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Old Jul 18, 2010 | 05:40 PM
  #1  
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Default Brake problem help please!!

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i have a 92 sc4 and it has a bad problem with the brakes. I purchased the car this way and this is what it does...When you press brakes they are extremely hard then all of a sudden they are super sensitive. I know its the booster be are there any interchangeable boosters i can use my car is also equipped with trac which makes the ones i found 6-900 bucks. If anyone can point me in the right direction i would thank you greatly
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Old Jul 18, 2010 | 06:21 PM
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i also have a sc400 i think booster for a non trac car will this work on mine?? or can i just delete the trac and abs and put the non trac booster and master cylinder on and the car will be a completly non trac/abs car

Last edited by mtm864; Jul 18, 2010 at 06:36 PM.
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Old Jul 18, 2010 | 06:47 PM
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brakes arent bled right, bleed the rear passenger, rear driver, passenger, and then driver caliper
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Old Jul 18, 2010 | 08:00 PM
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Originally Posted by kanukem
brakes arent bled right, bleed the rear passenger, rear driver, passenger, and then driver caliper
ok ill try this tomorrow
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Old Jul 18, 2010 | 10:15 PM
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Yea, you want to rule out all the simple things before dropping a bunch of money on parts you don't need. Bleeding the brakes is a good start; like kanukem said, bleed the brakes starting with the corner furthest away.
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Old Jul 19, 2010 | 10:18 AM
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I tried testing the booster and with the car off i pump brakes until hard and hold foot on brake and start engine and it doesnt change thats why i assumed it was the booster. Any way to confirm it
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Old Jul 19, 2010 | 01:01 PM
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Does our booster have a one-way valve on the vacuum line?

My friends car was acting the same way, it turned out to be a bad valve.
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