If the struts or coil springs show signs of wear such as leaking fluid, loss of damping capability, or physical damage like chipped, sagging, or cracked coil springs, explore all options before starting any work, as strut shock absorber assemblies are not serviceable and must be replaced if issues arise. Strut assemblies with springs may be available on an exchange basis, which can save time and effort, so check the cost and availability of parts before disassembling the vehicle. To disassemble, remove the strut and spring assembly, mount it in a vise lined with wood or rags to prevent damage, and avoid excessive tightening. Install a spring compressor according to the manufacturer's instructions to relieve pressure from the upper spring seat, which can be verified by wiggling the spring. Remove the damper shaft nut, then lift off the upper suspension support, checking the rubber portion for cracks or deterioration and replacing it if necessary. Remove the bearing from the spring seat and inspect it for smooth operation, replacing it if it does not turn smoothly. Lift the spring seat and upper insulator from the damper shaft, checking the rubber spring seat for cracks and hardness, replacing it if needed. Carefully lift the compressed spring from the assembly, keeping the ends pointed away from your body, and set it aside safely. Slide the dust boot off the damper shaft and check the lower insulator for wear, cracking, and hardness, replacing it if necessary. For reassembly, if replacing the lower insulator, set it into position with the dropped portion seated in the lowest part of the seat, extend the damper rod fully, and install the dust boot. Place the compressed coil spring onto the lower insulator, ensuring the end rests in the lowest part of the insulator. Install the upper insulator and spring seat, ensuring the cutout on the spring seat faces out, in line with the strut-to-knuckle flange opening. Install the bearing onto the spring seat, followed by the dust seal and suspension support to the damper shaft. Install and tighten the nut to the specified torque, carefully release the tension on the spring, and remove the spring compressor before installing the strut coil spring assembly.
Posted by NissanPartsDeal Specialist 
