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I have a 2005 Chevy trailblazer ls 4 wheel drive that we just replaced the wheel bearing/hub assembly and put new brakes and rotors on now the abs light came on and won't go off. How do we reset it?

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  • Cars & Trucks Master
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You would need to check the computer for trouble codes, fix the problem, then erase the codes. If the codes do not return, the warning light should stay off.

Posted on Jul 14, 2013

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Posted on Jan 02, 2017

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SOURCE: 2005 impala

All the hubs on the car have the abs sensor built into the hub. The abs system has to be re set to read the sensor . The rear hub bearing if noisy should be replaced. There are wiring harnesses that connect to the abs sensor. The harnesses to each of the abs sensor should be replaced.

Posted on Mar 18, 2009

  • 177 Answers

SOURCE: 1992 Honda Accord EX Replacing the Rear Wheel Assembly

It won't make any difference, seeing that the car is older and you don't have the ABS functionable it won't change anything. You already have the ABS light on so nothing new will happen.
Regards
Sam

Posted on May 12, 2009

  • 206 Answers

SOURCE: ABS Light is on, and TRAC off Light on. MIDAS

Either someone damaged a sensor for the ABS/TRAC control, or the replacement parts are not compatible with the ABS system.

Posted on Sep 16, 2009

  • 184 Answers

SOURCE: abs light on after replacing hub bearing

Sounds like the ABS sensor has failed, or is unplugged. If someone did the work for you, take it back. Otherwise check the sensor on the right front. Replace as necessary. Also ask the Q at MyFordFreestyle.com

Posted on Feb 11, 2010

  • 14 Answers

SOURCE: shimmy in wheel when braking lightly

Check what sensor type is fitted - i.e. can run off hub magnet ring, or may be older type peak/trough driveshaft ring that runs next to wheel abs sensor. If you've changed the hub parts then the sensor or sensor wiring is the best place to start with. You may need use of a diagnostic tool to check the wheel sensor works when spinning the wheel.

Posted on May 08, 2010

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1 Answer

2002 Trailblazer 4wd - Brand new brake pads, rotors, and hub assembly that contains the bearings. When I soft brake a grinding/slipping sounds occurs but the brakes are not slipping. Hard/fast brake no...


Sounds like over active ABS. is it possible that one of the bearings you installed is defective? Where the axle nuts tightened to the proper spec. Have you checked for play on the new front bearings? Otherwise you will need a high end scan tool to monitor wheel speed data from the abs module. It will be fairly easy to see what speed sensor is dropping out and causing the aver active abs to occurs.

Sep 08, 2013 | 2002 Chevrolet TrailBlazer

1 Answer

Where are the speed sensors on a 2004 chevy trailblazer?


Assuming that you're talking about the front wheel speed sensors...
Your best bet is to replace both from wheel hub/bearing assemblies.

They'll cost about $100-$150 each.
When the wheel speed sensors are setting ABS codes it usually means that the bearings are bad.
When you replace the whole hub assembly, a new sensor is already installed in that hub. If it just the sensor (unlikely that just the front sensors alone are going bad) the sensor itself is usually 3/4 of the price of a new hub anyway.

Apr 24, 2012 | 2004 Chevrolet TrailBlazer

1 Answer

Replace Front Wheel Hub Bearing 2002 Jeep Grand Cherokee 2 wheel drive


Removal
  1. Raise and support the vehicle.
  2. Remove the wheel and tire assembly.
  3. Remove the brake caliper, caliper anchor, rotor and ABS wheel speed sensor.
  4. Remove the cotter pin, nut retainer and axle hub nut.
  5. Remove the hub/bearing mounting bolts from the back of the steering knuckle. Remove hub/bearing from the steering knuckle and off the axle shaft.
Installation
  1. Install the hub/bearing to the knuckle.
  2. Install the hub/bearing-to-knuckle bolts and tighten to specification.
  3. Install the hub washer and nut. Tighten the hub nut to specification. Install the nut retainer and a new cotter pin.
  4. Install the brake rotor, caliper anchor, caliper and ABS wheel speed sensor.
  5. Install the wheel and tire assembly.
  6. Remove the support and lower the vehicle.

Apr 22, 2012 | 2002 Jeep Grand Cherokee

2 Answers

Front passenger brake is pulsing and there is no abs light on in my 1997 pontiac grand prix.I believe it might be abs sensor but don't know where to find it in wheel assembly.


A front brake pulsing with no ABS light is a rotor that is no longer true i.e warped. Pull off the tire and rotate the rotor. Hold a straight edge (ruler) across the outside of the rotor as your rotating the rotor. You will note that it changes distance on the straight edge / ruler as it rotates. (in out wobble) A good way to test for an out of true rotor is to drive at about 45 miles and hour and really stand on the brakes (do not lock them up) If the steering wheel and or brake pedal pulsate... you most likely have a rotor problem. If your rotor has never been "turned" it is probably time to do so.

The ABS sensor is behind the rotor on the lower control arm pointed outward toward the rotor with a flat button face. You can not see the button face with the rotor installed. If the sensor is bad you will have an ABS light. I think your troubleshooting the wrong problem. i.e rotor vs your current focus of the ABS sensor.

I would like some feed back on the running dynamic on the road brake test.

Thanks for choosing FixYa,
Kelly

Jun 06, 2011 | 1997 Pontiac Grand Prix

1 Answer

How do you change the front passenger side wheel bearing on a 1997 Chevy Blazer 4 wheel drive? Need detailed instructions.


Once the truck is on jack stands remove the brake caliper and rotor. The hub assembly should slide right off at that point. The wheel bearings are actually sealed in the hub assembly which is kind of nice because then you don't have to deal with grease packing the bearings. Just slide the new hub assembly back on. Put the rotor and caliper back together and you should be good to go. Hope this helps you.

Feb 12, 2011 | 1997 Chevrolet Blazer

1 Answer

Left front wheel bearing replacement diagram


Removal & Installation Front To Remove:
The front wheel bearings are not serviced separately. If the front wheel bearings are defective, the hub and bearing assembly must be replaced.
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Lubricate the threads on the halfshaft with clean engine oil.
  3. Remove or disconnect the following:
    • Front wheels
    • Halfshaft hub nut
    • Caliper from the steering knuckle WARNING
      DO NOT allow the brake hose to support the weight of the caliper.
    • Brake rotor
    • Anti-lock Brake System (ABS) sensor from the backing plate
    • Hub and bearing assembly from the backing plate
    • Hub and bearing assembly from the halfshaft
    • Hub and bearing assembly
To Install:
Exploded view of the front hub mounting and related components 7922xg36.gif

  1. Install or connect the following:
    • Hub and bearing assembly onto the halfshaft
    • Hub and bearing assembly to the backing plate. Torque the 3 bolts alternately and evenly to 70 ft. lbs. (95 Nm).
    • ABS sensor
    • Brake rotor
    • Caliper on the steering knuckle.
    • Halfshaft nut. Torque it to 118 ft. lbs. (160 Nm).
    • Front wheel. Torque the nuts to 100 ft. lbs. (140 Nm).

Oct 18, 2010 | 2001 Oldsmobile Aurora

1 Answer

REMOVAL OF FRONT WHEEL BEARINGS


Front (4 Wheel Drive) To Remove:
  1. Raise and support the vehicle
  2. Remove or disconnect the following:
    • Tire and wheel assembly
    • Rotor (See: Disc Brake Rotor)
    • Wheel speed sensor and brake hose mounting bracket bolt from the steering knuckle
    • Electrical connection for the wheel speed sensor
    • Front drive halfshaft assembly (See: Halfshaft)
    • Hub and bearing assembly mounting bolts 4WD front hub 9308kg35.gif

    • Hub and bearing assembly
To Install:
  1. Clean all corrosion or contaminates from the steering knuckle bore and the hub and bearing assembly
  2. Lubricate the steering knuckle bore with wheel bearing grease or the equivalent
  3. Install or connect the following:
    • Hub and bearing assembly
    • Hub and bearing assembly mounting bolts and tighten the hub to knuckle bolts; Torque to: 133 ft. lbs. (180 Nm)
    • Front drive halfshaft assembly (See: Halfshaft)
    • Electrical connection for the wheel speed sensor
    • Wheel speed sensor and brake hose mounting bracket bolt to the steering knuckle and tighten the bolt; Torque to: 106 inch. lbs. (12 Nm)
    • Rotor (See: Disc Brake Rotor
    • Tire and wheel assembly
    Wheel lug nut tightening sequence gm_trk_sub15_wheel_lug_nut_tight_seq.gif

  4. Torque the lug nuts to specification
  5. Test drive the vehicle to confirm the repairs
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Aug 03, 2010 | 2001 Chevrolet Silverado 1500

1 Answer

I need a diagram on front hub and brake assembly for 1999 dodge 1 ton dually 2 wheel drive. the front brake rotor is warped i need to replace it


8–Stud Rotor
  1. Raise and support the vehicle.
  2. Remove the wheel.
  3. Remove the hub extension.
  4. Remove the brake caliper assembly.
  5. Remove the axle nut cotter pin. Remove the axle nut.
  6. Disconnect the ABS wheel speed sensor wire from under the hood. Remove the sensor wire from the frame and steering knuckle, if equipped.
  7. Back off the hub/bearing mounting bolts 1/4 inch each. Then tap the bolts with a hammer to loosen the hub/bearing mounting bolts.
  8. Remove the bolts and remove the hub/bearing assembly.

Sep 16, 2009 | 2000 Dodge Ram 3500

3 Answers

Replace front wheel bearing is it hard to do on 2002 alero


its actually pretty easy if you have the basic tools needed and a little mechanical knowledge, because i dont think you can buy just the bearing at a auto parts store. they sell you the whole hub assembly which is great for the DIYer.

lift the car off the ground and block it from rolling and place a jack stand under it so it cant fall on anyone.


Wheel Bearings printpage_icon.gif

Removal & Installation

These vehicles are equipped with sealed hub and bearing assemblies. The hub and bearing assemblies are non-serviceable. If the assembly is damaged, the complete unit must be replaced.
  1. Before servicing the vehicle, refer to the precautions section.
  2. Remove or disconnect the following:
    WARNING DO NOT allow the caliper to hang unsupported from the brake hose.


    Front wheel Halfshaft nut and washer Caliper from the steering knuckle and support it aside


    Brake rotor Anti-lock Brake System (ABS) connector, if equipped 3 hub/bearing assembly bolts Halfshaft from the hub/bearing assembly Hub/bearing assembly

    0900c1528023b277.jpg enlarge_icon.gifenlarge_tooltip.gif Fig. Exploded view of the front hub/bearing assembly


To install:
Install or connect the following:

Hub/bearing assembly onto the halfshaft, making sure the splines engage smoothly Hub/bearing assembly to the steering knuckle. Torque the bolts to 70 ft. lbs. (95 Nm). Anti-lock Brake System (ABS) connector, if equipped Brake rotor Caliper onto the steering knuckle. Torque the bolts to 38 ft. lbs. (51 Nm). Halfshaft nut. Torque the hub nut to 284 ft. lbs. (385 Nm) on nuts colored black, or 173 ft. lbs. (235 Nm) on gray colored nuts. Front wheel. Torque the nuts to 100 ft. lbs. (140 Nm).

Jul 27, 2009 | 2004 Oldsmobile Alero

1 Answer

2005 impala


All the hubs on the car have the abs sensor built into the hub. The abs system has to be re set to read the sensor . The rear hub bearing if noisy should be replaced. There are wiring harnesses that connect to the abs sensor. The harnesses to each of the abs sensor should be replaced.

Mar 18, 2009 | 2005 Chevrolet Impala

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