suspension

Ball Joint - Upper

for 2021 Honda Accord 1.5L I4 Turbo · FWD

Editorial review:Chris Hackleman — Master Technician · 20+ years · Jeff Moore — Master Lexus & Toyota Mechanic · 20+ years

Difficulty

Moderate

Time

1.5 h

Tools

Steps

✓Expert-verified. Personally reviewed and approved by OLP's master technicians (Chris Hackleman & Jeff Moore — 20+ years each). Always follow the vehicle's factory service information and torque specs.

This procedure covers removal and replacement of the upper ball joint on the front suspension of a 2018-2024 Honda Accord with 1.5L turbo engine.

Warnings

⚠️Never work under a vehicle supported only by a jack. Always use jack stands rated for the vehicle weight.

⚠Ball joint separator tools can apply significant force. Wear safety glasses and ensure tool is properly seated to prevent slipping.

⚠Do not torque control arm bolts until vehicle weight is on the wheels or suspension damage may occur.

ℹ️This vehicle uses a strut-type front suspension. The upper ball joint connects the upper control arm to the steering knuckle.

Tools required

Floor jack and jack standsEssential

Torque wrench (30-180 Nm range)Essential

19mm socket (lug nuts)Essential

17mm socket and wrenchEssential

14mm socketEssential

Ball joint separator or pickle forkEssential

Breaker barEssential

Cotter pin removal tool or needle nose pliersEssential

Wire brush

Anti-seize compound

Pry bar

Parts

Upper ball joint × 1 — Use OEM specification
Cotter pin × 1 — Use OEM specification
Pinch bolt × 1 — Use OEM specification

Preparation

Park vehicle on level surface and engage parking brake
Loosen wheel lug nuts while vehicle is on ground
Raise front of vehicle and support securely on jack stands placed on chassis frame rails
Remove wheel and tire assembly
Inspect suspension components for additional wear or damage while accessible

Procedure

1
Remove cotter pin and loosen ball joint nut
Locate the upper ball joint castle nut on top of the steering knuckle. Straighten and remove the cotter pin using pliers or a cotter pin removal tool. Discard the old cotter pin. Loosen the ball joint castle nut but do not remove it completely yet - leave it threaded on a few turns to prevent the knuckle from falling when separated.
2
Separate ball joint from knuckle
Position a ball joint separator tool between the upper control arm and steering knuckle at the ball joint taper. Tighten the separator tool to apply pressure. Strike the knuckle boss area sharply with a hammer while maintaining separator pressure to break the taper free. Alternatively, use a pickle fork if space allows. Once the taper is broken, remove the castle nut completely and separate the ball joint stud from the knuckle.
⚠Do not strike the ball joint stud directly as this can damage the threads and prevent proper reassembly.
3
Access upper control arm mounting
If the ball joint is pressed into the control arm, proceed to remove the control arm from the vehicle. Remove the strut tower nuts from under the hood to access the upper mount. Note the position and orientation of any washers or spacers.
Torque spec
Strut Tower Nuts50 Nm (37 lb-ft)
4
Remove control arm bolts
Locate the control arm mounting bolts at the chassis. Support the control arm with one hand or a jack. Remove the control arm mounting bolts completely. Note: These bolts must be torqued with vehicle weight on suspension during reassembly. Carefully lower and remove the control arm from the vehicle.
Torque spec
Control Arm Bolts165 Nm (122 lb-ft)
5
Remove old ball joint from control arm
If the ball joint is bolted to the control arm, remove the mounting bolts and separate the ball joint. If the ball joint is pressed in, use a hydraulic press or ball joint press tool to press the old ball joint out of the control arm bore. Support the control arm properly in the press and apply steady pressure to avoid damaging the control arm. Clean the ball joint bore with a wire brush to remove any corrosion or debris.
⚠Ensure press adapters are properly sized to avoid damaging the control arm bore during ball joint removal.
6
Install new ball joint into control arm
Position the new ball joint in the control arm bore, ensuring proper orientation (grease fitting accessible if equipped). If pressed type, use a hydraulic press with appropriate adapters to press the new ball joint into the control arm until fully seated. Apply steady, even pressure. If bolted type, install new bolts with medium-strength threadlocker and torque to specification. Verify the ball joint is fully seated and secure.
7
Reinstall control arm to chassis
Position the control arm back into its mounting location on the chassis. Install the control arm mounting bolts finger-tight only at this stage. Do not torque these bolts yet - they must be torqued with vehicle weight on the suspension.
8
Reinstall strut tower nuts
Position the upper strut mount back into the strut tower from under the hood. Ensure any washers or spacers are in their original positions. Install the strut tower nuts and torque to specification.
Torque spec
Strut Tower Nuts50 Nm (37 lb-ft)
9
Connect ball joint to steering knuckle
Clean the ball joint stud taper and knuckle bore with a wire brush. Apply a light coating of anti-seize to the threads only, not the taper. Insert the ball joint stud into the steering knuckle bore, ensuring it seats fully. Install the new castle nut and torque to 84 Nm (62 lb-ft). If the castle nut slots do not align with the stud hole, tighten further up to 97 Nm (71 lb-ft) maximum to achieve alignment - never loosen to align.
⚠Never loosen the castle nut to align the cotter pin hole. Only tighten within the specified range until alignment is achieved.
Torque spec
Ball Joint Nut84 Nm (62 lb-ft)
10
Install new cotter pin
Insert a new cotter pin through the castle nut slots and ball joint stud hole. Bend the cotter pin legs in opposite directions to secure. Ensure the cotter pin is properly seated and cannot back out.
11
Reinstall wheel and lower vehicle
Reinstall the wheel and tire assembly. Thread the lug nuts on by hand to ensure proper seating. Tighten lug nuts in a star pattern to snug, but do not torque yet. Carefully lower the vehicle until the tires just contact the ground but jack stands remain supporting most of the weight.
12
Final torque with vehicle weight on suspension
With the vehicle weight now on the suspension, torque the control arm mounting bolts to 165 Nm (122 lb-ft). This is critical to prevent bushing bind and premature wear. Remove jack stands and lower vehicle completely. Torque wheel lug nuts to specification in a star pattern.
⚠Control arm bolts MUST be torqued with vehicle weight on the suspension. Failure to do so will cause premature bushing failure.
Torque spec
Control Arm Bolts165 Nm (122 lb-ft)
Wheel Lug Nuts129 Nm (95 lb-ft)

Reassembly

Ensure all fasteners are torqued to specification in the correct sequence
Verify cotter pin is properly installed and secured
Confirm control arm bolts were torqued with vehicle weight on suspension

Verification

Test drive vehicle at low speed and verify no abnormal noises from front suspension
Check for proper steering response and no pulling to either side
Visually inspect all fasteners for proper installation
Schedule a professional wheel alignment as suspension geometry has been altered
After 50-100 miles, re-check torque on all suspension fasteners

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