How to repair a rear wheel bearing on a 2003 chevy trailblazer

Wheel Bearings

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Adjustment

2002-05 Models

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Remove or disconnect the following:
   
   Rear wheel Brake drum Hub cover Cotter pin Lock nut cover
3. Adjust the locknut to achieve wheel bearing play of 0.001-0.006 inches (0.025-0.152 mm).

Removal & Installation

2002-05 Models

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Remove or disconnect the following:
   
   Rear wheel Brake drum Hub cap Cotter pin Lock nut cover Lock nut Wheel bearing retainer washer and the outer wheel bearing Hub assembly Grease seal Inner wheel bearing
3. Clean and inspect the wheel bearings and races for unusual wear or damage. Replace parts as necessary.

To install:

1. Pack the wheel bearings with grease for assembly.
2. Install or connect the following:
   
   Inner wheel bearing Grease seal Hub assembly Lock nut. Adjust the locknut to achieve wheel bearing play of 0.001-0.006 inches (0.025-0.152 mm). Lock nut cover Cotter pin Hub cap Brake drum Rear wheel
   

Does the vehicle make any noises while driving? If there is a "growling or roaring " noise associated with the vibration, check the right front hub bearing. If there are no noises and only vibration, check the right front upper ball joint and control arm bushings. The Trailblazer's upper ball joint and control arm bushings become worn and cause the tire and wheel assembly to shimmy while driving. The vibration stops when turning left because of weight transfer to the right side which keeps the wheel steady for a moment. Also, check the tire for irregular wear.

You would be better off replacing the entire hub assembly. Yes, bearings need to be pressed into place and this requires a hydraulic press.

You are looking at spending between $60-$70 per wheel. Thats just for the labor. That doesn't include the cost of the wheel bearing/hub assembly. The cheapest one I found was $102.99 for one wheel hub assembly. Hope this helps.

Go to YOU TUBE and put in replacing wheel bearing hubs for
nissan altima & watch

There is a lot to see even if on a different vehicle

I doubt you have the tools to do the job

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.

I’m happy to help further over the phone at https://www.6ya.com/expert/jason_00b31cc8f593773a

Front wheel bearings are expensive because they come as an entire hub assembly, but the labor isn't too bad, maybe 1 hour. The rear bearings are relatively cheap, but the labor to get to them is long. The axle has to come out, so that means the differential needs to be opened. The brakes have to be disassembled. Depending what kind of deal you can get a front hub assembly for, the rear bearings will probably cost you more.

The wheel bearings in a Ford Taurus are located in the hub/bearing assembly. Replacing the hub/bearing assembly is a straightforward process -- remove the brakes, then the bearing, and reassemble.

Not enough space available for step by step instructions. Try this link:

http://www.ehow.com/how_5488471_change-wheel-bearing-ford-taurus.html

Cheers,

TF

Hub & Bearing Removal & Installation To Remove:
Hub bearing assembly (Typical)

1. Release parking brake.
2. Remove rear wheel assembly.
3. Remove rear wheel speed sensor from carrier.
4. Dismount brake caliper and support with mechanic's wire.
5. Remove brake disc.
6. Remove 4 axle hub mounting bolts. Special tool 09432-11000 (Typical)
   
   
7. Using tool 09432-11000 (or suitable gear puller), remove tone wheel.
8. Remove carrier.
9. Remove stakes and remove flange nut.
10. Support bearing outer race flange and press rear axle hub out.
11. Using tool 09432-11000 (or suitable puller), remove inner race from axle hub.

To Install:
Hub bearing assembly (Typical)

1. Apply thin coat of grease to bearing contact surface and hub.
2. Using and appropriate tool, press bearing into hub. CAUTION
   Do not press against outer race of wheel bearing.
   
3. Install flange nut and stake nut until it meets concave portion of spindle.
4. Install carrier.
5. Use an appropriate tool to press tone wheel.
6. Install hub/bearing assembly with rounded portion of outer race facing up.
7. Install 4 hub/bearing assembly bolts and rotate hub to seat bearing.
8. Measure wheel bearing starting torque with a spring balance or equivalent device.
   • Starting torque should measure 15.9 in lb (1.8 Nm) or less
9. Install brake disc.
10. Mount brake caliper.
11. Install rear wheel speed sensor to carrier.
12. Install rear wheel assembly.

don't have topaz. maybe escort will help guide you.

Section 04-02: Suspension and Wheel Hubs, Rear 1996 Escort, Tracer Workshop Manual
REMOVAL AND INSTALLATION Wheel Bearing and Hub Assembly NOTE: Wheel bearings are not serviceable and should therefore be replaced as an assembly with the wheel hub (1104).

Removal

1. Raise and support the vehicle.
   

1. Remove the wheel and tire assembly.
   

1. Remove the hub grease cap (1131) from the wheel hub.
   

1. If equipped with disc brakes, remove the rear disc brake caliper (2552) and rear disc brake rotor (2C026). Refer to Section 06-04 for the removal procedure.
   

1. If equipped with drum brakes, remove the two brake drum screws and the brake drum (1126).
   

1. Unstake the rear axle wheel hub retainer (4B477) securing the wheel hub to the rear wheel spindle (4A013). Remove and discard the rear axle wheel hub retainer.
   
2. Remove the wheel hub from the rear wheel spindle.