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ASEMaster35yrs
ASEMaster35yrs, Chevy Technician
Category: Chevy
Satisfied Customers: 2014
Experience:  ASE Certified since 1972,Master Auto tech,Heavy Truck Tech ,chev dealer tech
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Chevrolet Silverado 2500 HD: I have a 2001 Chevy Silverado

Resolved Question:

I have a 2001 Chevy Silverado 2500 HD,XXXXX automatic, 8.1 Engine with 78000 miles on it. The ABS light and the brake light come on at the same time. They don't stay on all the time though. They come on every few days and stay on for a day or two then go out. Any idea what the problem is and how to fix it?
Submitted: 11 months ago.
Category: Chevy
Expert:  ASEMaster35yrs replied 11 months ago.
Hi, glad to be of help. The first things to check without a scanner is the fluid level in master cylinder reservoir. If the fluid level gets too low, the brake & ABS light will come on. A low fluid level indicates your brake pads are worn or you have a leak. You may just need new brake pads. Have your brakes checked. This is the most common reason for ABS & brake light to come on and go off. A malfunctioning master cylinder reservoir level sensor can also cause this. Check by disconnecting level sensor. Another thing you can check is low or bad battery or alternator output. If voltage gets too low, this will also turn on the ABS & brake light. Also check to make sure the middle rear brake light is working. If the bulb or socket has a malfunction, or bulb is burned out this will also turn on the ABS & brake light. Also check parking brake switch. Other than these, you will need a scanner with ABS function to diagnose problem and retrieve codes.
ASEMaster35yrs, Chevy Technician
Category: Chevy
Satisfied Customers: 2014
Experience: ASE Certified since 1972,Master Auto tech,Heavy Truck Tech ,chev dealer tech
ASEMaster35yrs and 8 other Chevy Specialists are ready to help you
Expert:  ASEMaster35yrs replied 11 months ago.

Thank you for your excellent feedback. Thank you for using just answer.

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