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ASR, ABS, Brake probs, please help.

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Old Apr 24, 2009 | 07:53 PM
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Default ASR, ABS, Brake probs, please help.

Hey guys,

I'm new to the forum, but I was referred here by a bunch of friends of mine who raved about this site.

Anyway, I have an 02 Z28 camaro, and I am having issues with it. I was driving it the other day and all of a sudden the Brake, ASR off, and ABS inop light came on. So I pulled over and took a look under the hood. Everything looked ok, so I started it and all the lights were off. I was told by the guy I got it from that about 9 months ago that the wheel speed sensors were replaced because of the same problem, but I wouldn't think that the problem, would come back this quick. I took the rear tires off and pulled the rear speed sensors and cleaned them as they had a big chia pet of metal on the ends of them, put it back together and took it on a test drive. Everything worked perfectly until I made a stop off at the store and as soon as I started the car they all came back on again. The car has about 92k on it if that makes a difference.


Has anyone ever seen this prob before, and if so is it easily fixable? Any help would be greatly appreciated, as it is driving me nutz lol.



Andy
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Old Apr 25, 2009 | 02:54 AM
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I hear a like chattering noise under the dash in the passenger side footwell, it sounds like a relay, could this cause the problem. Basicially are there any relays under the dash on that side?
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Old Apr 25, 2009 | 05:07 PM
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Moving to general repair & maintenance.

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Old Apr 26, 2009 | 01:31 PM
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I don't know if this makes a diff or not, but I noticed that if I turn the ASR off using the switch and drive the car, the ABS Inop, and brake warning light dont come on, only the ASR off light stays on. Could this mean that the problem is with one of the rear wheel speed sensors because the ASR isnt looking for them?
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Old Apr 26, 2009 | 03:45 PM
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did you read wires out? check the harness and sensors for resistance. abs inop might be a air in your system maybe try bleeding them?
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Old Apr 26, 2009 | 05:58 PM
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if I do a resistance test on the sensors, what should the value be?? for the rear.
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