A: Vehicle lifting and wheel support must occur during coil spring replacement before tire removal. Start by unprompting the brake pipe bracket nuts and afterward taking out the brake pipe bracket from its mounting studs during the right coil spring replacement process. A suitable jack should support the lower Control Arm so technicians can remove the lower shock mounting bolt. Start by lowering the lower Control Arm before removing its support. Then apply the suitable jack to support the cradle. The professional procedure involves removing both side cradle to body mounting bolts and accompanying washers while extracting bolts from the side which requires new coil spring installation. Lower the cradle side enough to unmount the coil spring from the vehicle. To begin installation locate your replacement coil spring under the vehicle while you lift the cradle upwards. Install the frame to body mounting bolts and washers then tighten the bolts beginning with 265 nm (195 ft. Lbs.) for the fronts followed by 191 nm (141 ft. Lbs.) for the rears. Use a suitable jack under the lower Control Arm to lift it until the shock absorber meets the knuckle before installing the lower retaining bolt at 150 nm torque (111 ft. Lbs). Reinstall the brake pipe bracket to its mounting studs while tightening retaining nuts to a torque of 10 nm (89 inch lbs.). After raising the vehicle, install the tire and wheel and allow the vehicle to lower.
Q: How to replace Coil Springs with RPO FE1 and FE3 on Cadillac DeVille?
A: To change the coil spring on vehicles with rpo fei and fe3, start by lifting and supporting the vehicle, remove the tire/and or wheel. Support the lower control armour with an appropriate jack and remove the automatic level control link from the lower Control Arm. Then, take out the shock absorber lower retaining bolts and the adjustment link retaining nut. Use the steering linkage puller (J 24319-B) to gradually lower the lower Control Arm down to the support assembly for the coil spring may be removed. On installation, make sure that the coil spring is seated at the right place in the lower Control Arm with an insulator at its place. Raise the lower Control Arm and fit the shock absorber lower retaining bolts to 25 nm (18 ft. Lbs.). Join the adjustment link to Control Arm and tighten with the retaining nut, tightening to 30 nm (22 ft. Lbs.) and + 180°. Reattach the automatic level control link to the lower Control Arm, reinstall the tire and wheel, and lastly lower the vehicle.
Q: How to service and repair a coil springs and shock absorber on Cadillac SRX?
A: Start by lifting the vehicle then supporting it before removing wheels and tires to gain access to the shock absorber. Use the spring compressor to detach the shock module from the vehicle and place it into the device for insertion. Place upper Control Arm assembly marks along with the insulator before reinstallation and maintain the shock absorber with free movement while compression of the spring remains steady. The compressor forcing screw needs to be turned until the coil spring reaches proper compression for removing both the magnaride sensor nut and shock absorber upper retaining nut before extracting the shock absorber from the shock module. The compressor forcing screw allows removal of the upper mount plate and compression of the coil spring. Next comes the upper Control Arm bracket and insulator until they are fully detached. To install correctly position the upper Control Arm bracket alignment pins at a 90-degree angle with respect to shock absorber lower mounting holes. Put the shock absorber assembly together with the coil spring and insulator and upper Control Arm bracket inside the spring compressor, normalize all marks before using the screw to re-compress the coil spring. Set the shock absorber retaining nut to 25 n.m (18 lb ft) torque until tight then torque the magnaride sensor nut. Following removal of the shock module from the spring compressor resume its installation on the vehicle after which you can reinstall the tire and wheel and then lower the vehicle.