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A wheel hub assembly is a sealed unit that holds the wheel bearing, the wheel studs and, on many cars, the ABS wheel speed sensor. When it wears, you hear a hum or growl that climbs with speed. Route 66 Auto Repair in Upland pinpoints which corner is failing, replaces the hub after written approval, and checks the ABS signal before returning the car. On vehicles with separate press-in bearings, see our wheel bearing replacement page.
How do we tell which hub is failing?
Hub noise is hard to place from the driver's seat. On the road test, a technician notes whether the noise changes when the car sways left or right on a gentle curve. Loading a hub usually makes it louder, which points to a side.
On the lift, we spin each wheel by hand and feel for roughness, and rock it for play. A chassis listening device can help separate front from rear. We also rule out tire noise, since cupped tires can hum just like a bearing.
Why can a bad hub trigger the ABS light?
On many cars, the wheel speed sensor reads a tone ring built into the hub. When the bearing wears, the ring can wobble, and the sensor signal becomes erratic. The ABS or traction control light comes on. Replacing the hub usually fixes it, but we check the sensor and wiring as well. See ABS wheel speed sensor repair if the sensor itself is at fault.
Our wheel hub repair process
Step 1: Road test
We listen for the hum and note how it changes in curves.
Step 2: Lift check
Each wheel is spun and rocked, and tire noise is ruled out.
Step 3: Replace
After approval, the hub is installed and the axle nut and mounting bolts are torqued to spec.
Step 4: Scan and road test
We confirm the ABS signal and road-test for a quiet drive.
What's included in wheel hub assembly repair
Included on the work order
- 01Road test with left and right loading
- 02Spin and play check at each corner
- 03Tire noise ruled out
- 04ABS sensor and wiring check
- 05Torque to spec on the axle nut and bolts
- 06Post-repair scan for warning lights
Need-now or need-later?
Need now: call
- Grinding noise or play at the wheel
- A hub that is hot after driving
Need later: book
- A faint hum with no play
How pricing and timing work
Hubs are priced by vehicle and by front or rear position. Four-wheel-drive hubs can take longer. AAA members get 10% off parts and labor, up to $75. Hub replacements are often same-day when the board allows. If you want a documented check first, our wheel bearing inspection is an option.
Aftercare
The hum should be gone immediately. If you hear noise from another corner, it may be a second hub that was masked. Check your tires for cupping, which can make noise on its own.
Frequently asked questions
Can I drive with a bad wheel hub?
A light hum can last a while, but a grinding hub can seize or lose the wheel. Have it checked soon.
Should I replace both hubs?
Not always. Hubs fail independently. We test each one and replace only what is worn.
Does a new hub need an alignment?
Usually not, since it does not change wheel angles. We will tell you if your vehicle needs one.