Be sure not to confuse the lower ball joint looseness with wheel bearing looseness.
Wheel bearings that need replacing may be indicated by a noise that occurs only during turning. Diagnose the wheel bearings as follows:
Road test the vehicle on a smooth road. Make sharp turns to the right and left.
- If the vehicle makes noises on right turns, the left wheel bearing may need to be replaced.
- If the vehicle makes noises on left turns, the right wheel bearing may need to be replaced.
- Apply the parking brake and block the rear wheels, then raise and safely support the front of the vehicle on jackstands.
- Using one hand on top of the tire and one hand on the bottom, rock the wheel assembly to check for wheel bearing looseness.
- Spin the tire quickly by hand and be sure that the tire rotates smoothly and without noise from the wheel bearings.
- Remove the wheel and disc brake caliper.
- Position a dial indicator, such as Ford Position Dial Indicator with Bracketry TOOL-4201-C, against the wheel bearing hub. Push and pull on the hub and read the hub movement range on the dial indicator. The maximum allowable hub play is 0.002 in. (0.05mm). If end -play exceeds the specified value, replace the wheel hubs.
REMOVAL & INSTALLATION
See Figures 1 through 7
The front wheel bearings, hub and anti-lock sensor ring (where applicable) are one unit and cannot be separately serviced or replaced. Therefore, when the wheel bearings are faulty, the entire assembly must be replaced.
- Loosen the front wheel lug nuts 1 / 2 turn only.
- Apply the parking brake, block the rear wheels, then raise and safely support the front of the vehicle on jackstands.
- Using a prytool, remove the plastic hub grease cap and discard it.
- Remove the brake caliper and suspend it with strong cord or wire from the chassis.
- Remove the front disc brake rotor.
- Remove the front axle wheel hub retainer and discard it.
- Pull the wheel hub and bearing assembly off of the spindle. If the assembly cannot be removed by hand, use Ford Front Hub Remover/Replacer T81P-1104-C or equivalent.
- Install the hub/bearing assembly on the wheel spindle.
- Install a new front axle wheel hub retainer and tighten it to the figures given in the torque specifications chart.
- Install the front disc brake rotor and new push-on nuts.
- Install a new front hub grease cap, being cautious to avoid damaging or distorting the grease cap.
- Install the brake caliper.
- Install the wheel and tire assembly, and snug the wheel lug nuts.
- Lower the vehicle and remove the rear wheel blocks.
- Tighten the wheel lug nuts in a crisscross pattern to the figures given in the torque specifications chart.