OEM 2004 Scion xB Coil Springs

2004 Scion xB Parts Questions & Experts Answers

• Q: How to overhaul the front shock absorber with coil spring on 2004 Scion xB?

  A: The procedure for replacing the front shock absorber with coil spring starts by removing the windshield wiper arm cover and left and right front wiper arms and hood to cowl top seal and both cowl top ventilator louvers. First disconnect the hose and wire harness before removing the windshield wiper link assembly and cowl top panel outer by taking out 8 bolts and a hose. Begin the shock absorber with coil spring front wheel replacement by removing the nut holding the speed sensor wire harness clamp on the shock absorber bracket and the bolt securing the flexible hose to it. Start by taking out the front shock absorber containing the coil spring after detached steering knuckle connection bolts followed by shock absorber coil spring attaching nuts then remove suspension support No.2. Position the front shock absorber with coil spring inside a vise then install the two bracket nuts and bolt until fully tightened before compressing the coil spring using Special Service Tool: 09727-30021 (09727-00010, 09727-00021, 09727-00031). Use this tool instead of an impact wrench to prevent damages. After you remove the front suspension support dust cover and the front support to front shock absorber left nut secured with 2 nuts and a screwdriver to hold the front shock absorber you can uninstall the front suspension support of each side as well as the front suspension support left dust seal, the front coil spring seat upper left, the front coil spring insulator upper left, the front coil spring left, and the front spring bumper left. The front left shock absorber assembly needs inspection through shock absorber rod operation for abnormal resistance or sound which calls for a replacement if found. The front left shock absorber assembly receives installation first after which technicians should mount the front spring bumper left and front coil spring left while using Special Service Tool: 09727-30021 (09727-00010, 09727-00021, 09727-00031) to compress the spring before placing it into the shock absorber assembly. Begin by mounting the front coil spring insulator upper left with the "a" mark visible from outside before placing the front coil spring seat upper left that displays the "OUT" indicator. Keep installing the front suspension support left dust seal followed by the front suspension support sub-assembly left. Apply a new center nut to connect the front support with the front shock absorber left nut before torquing it to 33 Nm (340 kgf-cm, 25 ft. lbs.). Do this while carefully avoiding damage to the suspension support stud bolts. Apply MP grease to the suspension support while using Special Service Tool: 09727-30021 (09727-00010, 09727-00021, 09727-00031). The service starts with installing the front shock absorber coil spring by using suspension support number two while tightening three nuts to 39 Nm (400 kgf-cm and 29 ft lbs). The next step involves connecting this assembly to the steering knuckle through two bolts and a nut before torqueing the nut to 132 Nm (1,350 kgf-cm and 97 ft lbs). The installation process starts with the flexible hose receiving a torque of 29 Nm (300 kgf-cm, 22 ft. lbs.) followed by front wheel torquing to 103 Nm (1,050 kgf-cm, 76 ft. lbs.) and cowl top panel outer with 8 bolts experiencing 5.0 Nm (51 kgf-cm, 44 inch lbs.). Then hose and wire harness reconnection will take place. After installation of the windshield wiper link assembly, cowl top ventilator louvers and hood to cowl top seal, complete the work by adding the left and right front wiper arms and inspect front wheel alignment. The disposal process for front left shock absorbers requires users to extend the rod completely and drill a hole between points A and B on the cylinder to release the gas contents with appropriate safety gear because metal fragments can occur as the gas is colorless, odorless and non-toxic.