Ford BT4Z-5310-E Spring - Front

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On 2015 and later models, remove the cowl panel. In the engine compartment, mark the relationship of one of the mounting studs to the body, then remove the four upper mounting nuts. Loosen the wheel lug nuts, raise the vehicle and support it securely on jack stands. Remove the wheel. Unbolt the brake hose bracket from the shock absorber. Remove the wheel speed sensor and detach the wiring harness by removing the clamp bracket bolt. On 2015 and later models, remove the stabilizer bar link nut and disconnect the link from the strut. Support the control arm with a floor jack and unscrew the nuts securing the strut to the steering knuckle, then tap the bolts out with a hammer. Only turn the nuts; the bolts have serrated shoulders, and to turn them could damage the steering knuckle. Use the floor jack to lower the knuckle to allow room to remove the shock absorber/coil spring assembly, but be careful not to over extend the inner CV joint. Check the shock body for leaking fluid, dents, cracks and other obvious damage which would warrant replacement. Check the coil spring for chips or cracks in the spring coating. Inspect the spring seat for cuts, hardness and general deterioration. If any undesirable conditions exist, proceed to the shock absorber/coil spring disassembly procedure. Guide the assembly up into the fenderwell, align the previously made match marks and insert the upper mounting studs through the holes in the body. Once the studs protrude, install the new nuts so the shock won't fall back through but don't tighten them yet. This is most easily accomplished with the help of an assistant, as the strut is quite heavy and awkward. Use the jack to position the steering knuckle and install the two lower mounting bolts and nuts, then tighten the nuts to the torque. Install the wheel and lug nuts, then lower the vehicle and tighten the lug nuts to the torque. Tighten the upper mounting nuts to the torque. Have the front end alignment checked, and if necessary, adjusted.

For 2010 and earlier models, the removal steps include removing the brake caliper, brake disc, brake cable bracket, stabilizer bar link, and wheel speed sensor. On all-wheel drive models, the inner and outer drive axle/hub nuts need to be removed and the drive axle needs to be separated from the hub and bearing using a drive hub remover.

Finally, release the spring tension and reinstall the spring assembly in the vehicle.

In the engine compartment, mark the relationship of one of the mounting studs to the body, then remove the four upper mounting nuts.

After removing the spring on 2011 and later models, it is important to inspect and replace any defective components before reinstalling the spring and the rear knuckle.

With the spring compressed, install the rod nut, ensuring the ends of the spring fit into the recessed portion of the seats and maintaining the specified gap. Tighten the nut to the prescribed torque while keeping the position at both ends consistent.