Question about 2001 Chevrolet Silverado 1500

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Hard pedal won't stop, 2000 silverado

ABS light activated, grinding/clunking noise from wheel area (believe front right) at low speed (less than 10 mph). Applied brakes, truck slowed to a stop fine and noise disappeared. Started to drive away again and at 10 mph or so noise came back, slowed to a stop again and noise went away. Reversed and decided to return home (300 ft away) and as soon as speed hit 10 mph noise returned, truck slowed again when brakes applied and noise went away but at 5 mph ABS activated and truck would not stop - both feet hard on pedal, pedal did not go to floor but truck would not stop and I hit parked car in driveway.

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  • archw1951 Oct 06, 2009

    Turned out it was a hub bearing on its way to total failure. Local shop replaced the hub and bearing and all braking functions returned to normal. Truck is a 2000 Z71 4x4 - 150,000 km. I was surprised to find that low speed ABS activation completely disabled the braking, even with both feet hard on the pedal at a speed of about 5mph, it would not stop but went at least 15' hitting the front of a car and taking out the grill on the car and the lower valance on the truck. Live and learn.

  • Richard Scordino May 11, 2010

    OUCH!!! Can't tell you exactly what failed but considering it was making noise, it shouldn't be hard to find out what is going on there ...just remove the wheel.Anything you find that you don't understand, just ask and I'll help you out if I can!

  • yadayada
    yadayada May 11, 2010

    suggest you try our live chat option here for a faster answer to this lenghty question.

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6 Suggested Answers

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Posted on Jan 02, 2017

chiquititas
  • 1010 Answers

SOURCE: ABS BRakes

Check the brake light switch at the pedal. However an overheated/melted bulb base means arcing to me. So, BOTH sockets are probably slightly corroded & rusted. You fix that by scraping the terminals inside the socket with a pocket knife or screwdriver. Clean with alcohol or contact cleaner. If the new bulb isn't tight, and can be moved back and forth by hand, bend the contacts inward slightly, but don't snap them, they are spring steel. I was wondering when somebody would ask this question. I fix them at least to once a month - not the same car, but all GM's, and when fixed, they're good. Use logic if centre safety/brake light works.

The remote start sounds normal. There are many different types and they are quirky.

You should scan for codes with an OBD II scanner. If the problem was in the brake light connections or is fixed at the pedal, erase codes. It could be, by coincidence, and in no relation whatsoever to this problem, that a front wheel bearing sensor has gone - they do that, and require a new hub assembly.

Posted on Jun 25, 2008

  • 1 Answer

SOURCE: car steering vibrates when brakes

1. Check the tire to make sure there is not separation, local tire shop can do this. If no problem here, then...

2. Have your mechanic check the run out on the front disk rotors. I believe factory spec is 0.004", check the Honda manual to confirm. Make sure you have him check the replacement rotor run out after installation too. They sometimes get damaged in shippment.

I had this problem with my 1985 prelude. I found both front rotors we out of spec. Replaced the rotors and the problem went away.

Posted on Jul 28, 2008

mas66
  • 104 Answers

SOURCE: ABS BRakes

I recommend checking the gaps against specification (sorry I don't know what the spec is, check with a local dealer) between the tone wheel and the sensors, and making sure that the wheel bearings do not have excess play. The bearing play can mean that the gap changes when turning a corner, either too much gap or not enough, and the sensor gives a different output from the other 3 wheels which the abs computer thinks is wheel slip and the abs is activated. This may only apply to the front sensors, your vehicle will likely just have one sensor in the rear, mounted on the diff head, but if it has 4 sensors then check out the axle endfloat in the rear also.

Hope this helps,
Mark.

Posted on Nov 03, 2008

ewashmidas
  • 362 Answers

SOURCE: antilock brake system engages on low speed stops on dry pavement on my 2004 Silverado

Very loose front wheels bearings can cause this.

Posted on Feb 28, 2009

  • 108 Answers

SOURCE: clunking/vibration/squeling noise under the front end

sounds like u need front brake pads and rotors i would check brakes first if ok then i would check front wheel bearings but cv joints make a clicking sound usauly when turning

Posted on Mar 29, 2009

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