C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

abs trouble

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Old Jan 13, 2014 | 05:27 PM
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From: danvers il
Default abs trouble

any one know how to check the abs unit out it appears when I slam on the brake i get no pulsing affect to help stop wheels can lock up and slid no help from abs will the asr make a difference in this too
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Old Jan 13, 2014 | 07:27 PM
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when you back up in the morning for the first time, do you get a whirring sound in the back? That is the ABS self test.

Also, any warning lights on the DIC?

Finally, what year?
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Old Jan 13, 2014 | 07:42 PM
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From: danvers il
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ok sorry for the problems but the corvette is a 1992 convertible and I don't recall the whine you talk about from behind will check this out again thanks also no lights except under hard braking that resets with keys cycle











Originally Posted by bogus
when you back up in the morning for the first time, do you get a whirring sound in the back? That is the ABS self test.

Also, any warning lights on the DIC?

Finally, what year?
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Old Jan 13, 2014 | 07:58 PM
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Also, if you get any DIC lights or the brake light comes on the IP, then it will throw a code in the EBCM. I am betting you have a failing master cylinder. If it is original, then for sure.
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Old Jan 13, 2014 | 10:31 PM
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From: danvers il
Default abs help

don't quit understand a master cylinder failure if pressure is constant just no pulsing in the brakes like other cars I own I have car in stored till next month but want to get ideas what to do when I get it to the shop
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Old Jan 14, 2014 | 10:48 AM
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In addition, get on some loose gravel, go about 10 mph and step on the brakes in order to lock a wheel up. You should hear a ratcheting sound from behind you and an effect on the brake pedal.

If you don't get this ABS is not working.
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