suspension
Coil Springs - Front Pair
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
Advanced
Time
2.5 h
Tools
12
Steps
15
✓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 the removal and replacement of both front coil springs on a 2018-2024 Honda Accord 1.5L Turbo, requiring complete strut assembly disassembly using a spring compressor.
Warnings
⚠️COMPRESSED SPRINGS STORE LETHAL ENERGY. Use only a quality spring compressor rated for this vehicle's weight. Improper compression can cause spring to violently release, causing severe injury or death.
⚠️Never work under a vehicle supported only by a jack. Always use jack stands rated for the vehicle weight on a level, solid surface.
⚠️Suspension components are under tension. Do not remove fasteners unless the procedure explicitly directs you to do so in the proper sequence.
⚠This is a safety-critical repair affecting vehicle handling and braking. If you are uncertain about any step, seek professional assistance.
⚠Damaged or corroded fasteners must be replaced. Do not reuse stretched or damaged suspension hardware.
ℹ️Have the front alignment checked immediately after completing this repair, as suspension geometry will be affected.
Tools required
Spring compressor (rated for vehicle weight)Essential
Floor jack and jack stands (rated for vehicle weight)Essential
Torque wrench (10-180 Nm range)Essential
19mm socket for lug nutsEssential
14mm, 17mm, 19mm sockets and wrenchesEssential
Ball joint separator or pickle forkEssential
6mm Allen key for sway bar linkEssential
Breaker barEssential
Impact driver (optional but recommended)
Wire brush
Penetrating oil
Strut vice or holding tool
Parts
- Front coil spring (left) × 1 — Use OEM specification or equivalent rated spring
- Front coil spring (right) × 1 — Use OEM specification or equivalent rated spring
- Strut mount bearing assembly × 2 — Recommend replacement during service
- Strut mount nuts × 6 — Replace if damaged
- Ball joint castle nut × 2 — Replace with new cotter pin
- Cotter pins for ball joint × 2 — Always replace
Preparation
- Park vehicle on level, solid ground and engage parking brake
- Loosen front wheel lug nuts 1/4 turn while vehicle is on ground
- Raise front of vehicle and support securely on jack stands at manufacturer-specified jacking points
- Remove both front wheels completely
- Spray penetrating oil on ball joint nut, sway bar link nuts, and strut bolts; allow 15 minutes to penetrate
- Photograph or mark the orientation of the strut mount and spring for reassembly reference
- Ensure spring compressor is in good working condition with no damaged threads or cracks
Procedure
- 1Disconnect sway bar link from strutLocate the sway bar link connecting to the strut assembly. Use a 6mm Allen key to hold the shaft of the link from rotating while removing the upper nut with a 14mm wrench. Disconnect the link from the strut. If the ball joint spins, use locking pliers on the shaft.Torque specSway Bar Link Nuts55 Nm (41 lb-ft)
- 2Separate ball joint from knuckleRemove the cotter pin from the ball joint castle nut. Using a 19mm socket, loosen and remove the ball joint nut completely. Use a ball joint separator or pickle fork to separate the lower control arm ball joint from the steering knuckle. Do not damage the ball joint boot. Support the knuckle to prevent it from dropping.⚠The knuckle assembly will become loose after ball joint separation. Support it to prevent damaging the CV axle or brake line.Torque specBall Joint Nut84 Nm (62 lb-ft)
- 3Remove strut-to-knuckle boltsLocate the two bolts connecting the strut to the steering knuckle at the bottom of the strut. These are 17mm bolts. Support the knuckle and brake assembly. Remove both bolts completely and carefully pull the knuckle away from the strut. You may need to tap the bolts out with a brass hammer.⚠Do not allow the knuckle to hang by the brake hose or CV axle. Support it with wire or a bungee cord to nearby suspension component.Torque specStrut Bolts109 Nm (81 lb-ft)
- 4Remove strut tower mounting nutsOpen the hood and locate the strut tower under the plastic cover (remove cover if necessary). You will find three 14mm nuts securing the strut mount to the tower. Have an assistant support the strut from below, or use a jack to gently support it. Remove all three nuts. Carefully lower and remove the entire strut assembly from the vehicle.⚠️The strut assembly is heavy and awkward. Ensure it is properly supported before removing the final mounting nut to prevent it from falling.Torque specStrut Tower Nuts50 Nm (37 lb-ft)
- 5Mount strut in vice and install spring compressorSecure the strut in a vice or strut holding fixture, clamping on the bracket (not the piston shaft). Install the spring compressor according to manufacturer instructions, ensuring the compressor hooks are properly seated in the spring coils with equal compression on opposite sides. Position compressor away from the spring ends to avoid slippage.⚠️CRITICAL STEP: Verify spring compressor is rated for this vehicle and properly installed. Hooks must be fully engaged in coils. Unequal compression or improper installation can cause violent spring release.
- 6Compress spring and remove center nutSlowly and evenly compress the spring by alternating between compressor adjustment points until there is visible gap between spring and upper mount (approximately 1 inch of compression). Use a 17mm wrench to hold the strut shaft while removing the center strut mount nut with a 19mm socket. Remove the upper mount, bearing assembly, and spring seat. Keep all components in order.⚠️Do not remove center nut until spring is adequately compressed and loose from the mounts. The nut holds the assembly under spring tension.⚠Mark the orientation of the upper mount and spring seat for correct reassembly. Incorrect orientation will affect alignment.
- 7Remove old spring and inspect componentsCarefully remove the compressed spring from the strut. Keep the spring compressed. Inspect the strut mount bearing for wear, roughness, or binding. Check the spring seats for cracks or wear. Inspect the bump stop and dust boot for damage. Replace any worn components. Clean the strut shaft threads with a wire brush.⚠Keep the spring compressor installed and spring compressed until ready to install on strut. Do not release a compressed spring outside of the assembly.
- 8Install new spring with compressorInstall the spring compressor on the new spring using the same technique as removal. Compress the new spring to approximately the same compression as the old spring (about 1 inch gap from seated position). Verify the compressor is properly seated and compression is even on both sides.⚠️New springs may have different free length than worn springs. Ensure adequate compression before attempting installation on strut assembly.
- 9Reassemble strut with new springInstall the bump stop and dust boot on the strut shaft. Place the compressed new spring onto the strut, aligning the bottom coil end with the spring seat on the strut body. Install the upper spring seat, bearing assembly, and upper mount in the correct orientation (reference your photos). Thread on the center nut and hand-tighten while holding the strut shaft with a 17mm wrench.⚠Ensure spring end tags are properly seated in the spring seat grooves both top and bottom. Misalignment will cause noise and premature wear.
- 10Torque center nut and release springHold the strut shaft with a 17mm wrench and torque the center nut to 50 Nm (37 lb-ft) using a torque wrench and 19mm socket. Verify all components are properly seated. Slowly and evenly release the spring compressor, alternating sides to maintain even pressure. Once fully released, remove the compressor and inspect that the spring is properly seated top and bottom.⚠️Release spring tension slowly and evenly. Watch for any shifting of components. If anything appears misaligned, stop and recompress the spring to correct the issue.Torque specStrut Tower Nuts50 Nm (37 lb-ft)
- 11Install strut assembly into vehicleLift the complete strut assembly into the strut tower, aligning the three studs with the mounting holes. Install the three mounting nuts and hand-tighten. Torque all three nuts to 50 Nm (37 lb-ft) in a star pattern.Torque specStrut Tower Nuts50 Nm (37 lb-ft)
- 12Connect strut to knuckleGuide the steering knuckle onto the strut, aligning the bolt holes. Install both strut-to-knuckle bolts from the front. Torque both bolts to 109 Nm (81 lb-ft). Ensure the knuckle is fully seated against the strut before tightening.Torque specStrut Bolts109 Nm (81 lb-ft)
- 13Reconnect ball jointPosition the lower control arm ball joint into the steering knuckle. Install the castle nut and torque to 84 Nm (62 lb-ft). Install a new cotter pin through the castle nut slots and ball joint stud. Bend the cotter pin ends to secure. If slots don't align, tighten further (do not loosen) until next slot aligns.⚠Never loosen the ball joint nut to align cotter pin holes. Only tighten to the next slot alignment.Torque specBall Joint Nut84 Nm (62 lb-ft)
- 14Reconnect sway bar linkConnect the sway bar link to the strut. Hold the link shaft with a 6mm Allen key and install the nut. Torque to 55 Nm (41 lb-ft) while holding the shaft to prevent rotation.Torque specSway Bar Link Nuts55 Nm (41 lb-ft)
- 15Repeat for opposite sidePerform steps 1 through 14 for the opposite side front strut assembly. Ensure both sides are completed before proceeding to wheel installation.ℹ️Complete both sides before lowering vehicle to ensure consistent ride height and handling.
Reassembly
- Install both front wheels and hand-tighten lug nuts in a star pattern
- Lower vehicle until wheels just contact the ground but vehicle weight is still on jack stands
- Torque wheel lug nuts to 129 Nm (95 lb-ft) in a star pattern
- Fully lower vehicle and remove jack stands
- Torque wheel lug nuts again to 129 Nm (95 lb-ft) in a star pattern to verify proper torque
- Reinstall any strut tower covers or trim pieces removed during the procedure
- Bounce each corner of the vehicle several times to settle the suspension
Verification
- Start the engine and turn the steering wheel full lock in both directions while stationary, listening for any binding or unusual noises
- Test drive the vehicle at low speed in a safe area, checking for unusual noises, vibrations, or handling issues
- Verify the vehicle sits level and ride height appears normal on both sides
- Check that steering returns to center normally and there is no pulling to either side
- Re-torque all fasteners after 50-100 miles of driving
- Schedule a professional four-wheel alignment immediately, as camber, caster, and toe will be affected by this repair
- After alignment, verify no warning lights are illuminated on the dashboard