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

abs problems

Old Oct 12, 2006 | 09:20 AM
  #1  
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Default abs problems

Here is the deal on my 94 vette the brake light came on the one for the low brake pressure then came the abs and asr warning lights. the problem is i have a good firm brake pedal with plenty of brake fluid. when i shut the car off these warning lights go out and stay out for about 20 minutes after restart but it never fails they come back on. i hate asking but i do not have the fsm
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Old Oct 12, 2006 | 09:53 AM
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THere is a pressure switch in the master cylinder, perhaps that could be the problem.

Pull any stored codes and post them.

I'll look at my 1992 FSM and see if I can find a procedure for you.
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Old Oct 12, 2006 | 09:56 AM
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Are you running stock sized tires?

When we put our drag tires on, they are not the same size as stock and it throws the sensors off.
This is one possibility.
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Old Oct 12, 2006 | 12:30 PM
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yes i have stock size tires also i do not know how to pull the abs codes as it is a 94 model but i would like to thank you all for the help that you all can give me

Last edited by byedan; Oct 12, 2006 at 12:34 PM.
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Old Oct 12, 2006 | 11:33 PM
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Make sure that the fluid is real full. The low fluid sensor will cause this condition with low fluid. Just for a test, you can un-plug the top sensor on the master. This will eliminate a low fluid condition. If the lights dont come on any more, you just might be low on fluid. If the light come on, then the problem is elsewhere and has to be addressed differently.

Last edited by pcolt94; Oct 12, 2006 at 11:39 PM.
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Old Oct 13, 2006 | 08:52 AM
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thanks i will check the fluid and top off if needed
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