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Mark___
Bone Stock
Posts:0
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| 03/07/2002 7:39 PM |
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| When I go over things like train tracks or bumpy roads and have to apply brakes, sometimes they make a grinding noise and do not slow me down, I have taken it to chevy and to a brake place and they tell me the brakes are fine. Any suggestions? |
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qballwill___
Bone Stock
Posts:0
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| 03/07/2002 10:28 PM |
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Mark at 3/7/2002 7:39:25 PM
When I go over things like train tracks or bumpy roads and have to apply brakes, sometimes they make a grinding noise and do not slow me down, I have taken it to chevy and to a brake place and they tell me the brakes are fine. Any suggestions?
yeah i had a 99 silverado and my parents have an 00 and they both do that, not just sometimes, but everytime i get into that situation.... so it makes me think that its not necessarily a defect, though i have never had any other vehicle do that..... i have an 02 avalanche now and i dont think that it does it.... but just letting u know that urs isnt the only one....
Will |
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Rick_Karr___
Bone Stock
Posts:0
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| 03/07/2002 11:06 PM |
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Mark at 3/7/2002 7:39:25 PM
When I go over things like train tracks or bumpy roads and have to apply brakes, sometimes they make a grinding noise and do not slow me down, I have taken it to chevy and to a brake place and they tell me the brakes are fine. Any suggestions?
Sound normal to me. Your vehicle had antilock brakes and under some conditions over bumps or railroad tracks, if the wheels bounce off the ground and momentarily stop, it sets off the abs. The noise you here is the bpmv,
(brake pulse modulator valve) which has a electric motor and multiple valves.
I think the owners manual talks about it. |
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jay___
Bone Stock
Posts:0
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| 03/22/2002 12:16 PM |
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I have a 2000 Chevy Silverado Z-71 and it has done the same thing. I took it to the Chevy dealer and had them check for recalls, and they found one on the breaks. It was some kind of spring. They replaced it free of charge. Take your VIN # in and have your dealers service dept. run the numbers. Good Luck. |
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David
Bone Stock
Posts:2
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| 10/27/2006 3:00 PM |
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quote:
Originally posted by Mark___
When I go over things like train tracks or bumpy roads and have to apply brakes, sometimes they make a grinding noise and do not slow me down, I have taken it to chevy and to a brake place and they tell me the brakes are fine. Any suggestions?
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David
Bone Stock
Posts:2
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| 10/27/2006 3:02 PM |
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quote:
Originally posted by Mark___
When I go over things like train tracks or bumpy roads and have to apply brakes, sometimes they make a grinding noise and do not slow me down, I have taken it to chevy and to a brake place and they tell me the brakes are fine. Any suggestions?
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ChevyMan0784
Lift & Lockers
Posts:699
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| 10/29/2006 12:37 AM |
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| That would be your ABS (anti-lock breaks) working "wonderfully". In slippery situations e.i. slamming on the breaks and slidding, ice, snow, rain.....the ABS computer sends a message to the BPMV mentioned above. This in turn provides better traction in some instances by not allowing the tires to fully lock up. What you are experiencing should be fairly normal. You may even feel the vibration (or grinding) in the brake pedal. If you cannot stop on dry pavement that is one thing...but it sounds like it is just on offroad conditions, or in extreme weather. This is why ABS isnt always great offroad. Sometimes you want the tires to lockup on demand. |
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