This procedure covers the removal and replacement of the front steering knuckle/spindle assembly on a 2014-2019 Toyota Corolla with 1.8L engine, including disconnecting the brake caliper, rotor, wheel speed sensor, tie rod, ball joint, and strut connections.

Warnings

Tools required

Parts

• Front steering knuckle assembly × 1 — Use OEM specification or aftermarket equivalent
• Front wheel bearing hub assembly (if not included with knuckle) × 1 — Use OEM specification
• Ball joint castle nut × 1 — Replace with new
• Tie rod end castle nut × 1 — Replace with new
• Cotter pins × 2 — Various sizes

Preparation

1. Park vehicle on level surface and engage parking brake
2. Loosen front wheel lug nuts while vehicle is on ground
3. Raise front of vehicle and support securely on jack stands positioned under frame rails
4. Remove front wheel completely
5. Apply rust penetrant to all fasteners to be removed and allow 10-15 minutes soak time
6. Have replacement knuckle assembly and all new fasteners ready

Procedure

1. 1

   Remove brake caliper
   Remove the two brake caliper mounting bolts from the rear of the caliper bracket using a 14mm socket. Slide the caliper off the rotor and secure it to the strut spring or frame using wire or bungee cord. Do not disconnect the brake hose. Ensure caliper is supported and not hanging by the brake line.
   Torque spec

   Mounting Bolts26 Nm (19 lb-ft)
2. 2

   Remove brake rotor and caliper bracket
   Remove the brake rotor from the hub by pulling it straight off. If stuck, use two M8 bolts in the threaded holes to press it off. Remove the two caliper bracket bolts (17mm) to remove the bracket from the knuckle. Set bracket aside with the caliper.
3. 3

   Disconnect wheel speed sensor
   Locate the ABS wheel speed sensor on the back of the knuckle. Remove the 10mm bolt securing the sensor to the knuckle. Carefully pull the sensor straight out of the knuckle bore. Disconnect the electrical connector and secure the harness out of the work area. Avoid bending or damaging the sensor.
4. 4

   Remove tie rod end
   Remove the cotter pin from the tie rod end castle nut. Using a 17mm wrench, loosen and remove the castle nut. Use a tie rod end puller or pickle fork to separate the tie rod end from the knuckle steering arm. Strike the tool sharply but avoid damaging the threads. Once separated, remove the nut completely.
   ⚠Tie rod end can separate suddenly. Control the puller tool to prevent injury.
5. 5

   Disconnect lower ball joint
   Remove the cotter pin from the lower ball joint castle nut located at the bottom of the knuckle. Using a 19mm socket, loosen the ball joint nut but do not remove it completely. Use a ball joint separator tool or pickle fork to break the taper free from the knuckle. Once the taper is broken, remove the nut completely and separate the ball joint from the knuckle.
   ⚠Ball joint can release suddenly under spring tension. Keep the nut partially threaded until taper is broken.
   Torque spec

   Ball Joint Nut84 Nm (62 lb-ft)
6. 6

   Remove strut-to-knuckle bolts
   Locate the two bolts connecting the strut to the knuckle on the side of the strut. These are large 17mm or 19mm bolts with nuts on the backside. Support the knuckle with one hand or use a floor jack underneath. Remove both nuts while holding the bolt heads. Pull the bolts out toward the rear of the vehicle. The knuckle will now be free from the strut.
   ⚠Support the knuckle before removing the second strut bolt to prevent it from falling.
   Torque spec

   Strut Bolts109 Nm (81 lb-ft)
7. 7

   Remove knuckle assembly
   With all connections separated, carefully maneuver the knuckle assembly away from the vehicle. Pull it outward and away from the strut, tilting as needed to clear the CV axle shaft. The hub assembly will come out with the knuckle. Inspect the CV axle shaft for any damage to the boot or splines.
8. 8

   Transfer components to new knuckle
   If the new knuckle does not include the wheel hub bearing assembly, you will need to press or bolt the existing hub into the new knuckle. Inspect the hub bearing for roughness or damage and replace if necessary. Clean all mounting surfaces on the new knuckle with brake cleaner. Apply a thin coat of anti-seize to the CV axle splines and hub bore.
9. 9

   Install new knuckle onto CV axle and strut
   Guide the new knuckle assembly onto the CV axle shaft, ensuring the splines engage properly. Align the knuckle with the strut bracket. Insert both strut-to-knuckle bolts from the front, threading the nuts onto the rear. Do not fully tighten yet. Support the knuckle to keep alignment.
   Torque spec

   Strut Bolts109 Nm (81 lb-ft)
10. 10

    Connect lower ball joint
    Lift the lower control arm ball joint into the knuckle. Install the new castle nut and tighten to specification using a torque wrench. The nut must be tightened enough to allow cotter pin installation through the castle slots. Install a new cotter pin and bend the ends to secure.
    Torque spec

    Ball Joint Nut84 Nm (62 lb-ft)
11. 11

    Connect tie rod end
    Insert the tie rod end stud into the steering arm hole on the knuckle. Install the new castle nut and tighten to manufacturer specification (approximately 50 Nm / 37 lb-ft, though not in provided torque list - follow service manual). Ensure the cotter pin holes align and install a new cotter pin. Bend the cotter pin ends to secure.
12. 12

    Torque strut bolts
    With the knuckle now supported by the ball joint and tie rod, torque both strut-to-knuckle bolts to specification. Hold the nut on the backside while torquing the bolt head. Ensure bolts are fully seated and torque is achieved on both fasteners.
    Torque spec

    Strut Bolts109 Nm (81 lb-ft)
13. 13

    Reinstall wheel speed sensor
    Clean the wheel speed sensor bore in the knuckle with brake cleaner. Apply a thin coat of anti-seize to the sensor body (not the tip). Insert the sensor into the knuckle bore and secure with the 10mm bolt. Reconnect the electrical connector and secure the harness to prevent damage. Ensure proper routing away from moving components.
14. 14

    Reinstall caliper bracket and rotor
    Clean the hub surface and rotor mating surface with brake cleaner. Install the brake rotor onto the hub. Position the caliper bracket onto the knuckle and install the two bracket bolts. Torque the bracket bolts to specification (typically 108 Nm / 80 lb-ft for this vehicle, though not in provided list - follow service manual). Clean any brake cleaner residue.
15. 15

    Reinstall brake caliper and wheel
    Remove the wire or bungee supporting the brake caliper. Slide the caliper over the brake rotor and align the mounting holes. Install the two caliper mounting bolts and torque to specification. Install the wheel onto the hub and thread all lug nuts by hand. Lower the vehicle until the tire just contacts the ground, then torque lug nuts to specification in a star pattern.
    Torque spec

    Mounting Bolts26 Nm (19 lb-ft)

    Wheel Lug Nuts129 Nm (95 lb-ft)

Reassembly

1. Ensure all fasteners are torqued to specification, particularly the ball joint nut, strut bolts, and lug nuts
2. Verify all cotter pins are properly installed and bent to prevent nut loosening
3. Check that wheel speed sensor connector is fully seated and harness is secured
4. Verify brake caliper moves freely and is not binding on the rotor

Verification

• Lower vehicle completely and perform final torque check on wheel lug nuts to 129 Nm (95 lb-ft)
• Pump brake pedal several times to ensure firm pedal feel before moving vehicle
• Test drive vehicle at low speed in a safe area and verify no abnormal noises from the knuckle area
• Check for proper steering feel and no vibrations during test drive
• Schedule immediate wheel alignment as suspension geometry has been disturbed
• After first 50-100 miles, re-check torque on all critical fasteners including ball joint nut, strut bolts, and lug nuts
• Verify ABS warning light does not illuminate, confirming wheel speed sensor is functioning properly

More procedures for this vehicle