31 90... Front Axle Troubleshooting
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Follow troubleshooting for steering/shock absorbers. See 32 90... TROUBLESHOOTING ON STEERING and 31 90... TROUBLESHOOTING SHOCK ABSORBER
TROUBLESHOOTING TABLE
| Fault | Cause | Remedy |
|---|---|---|
| Grinding noise (louder when negotiating bends) | Wheel bearings faulty | Replace wheel bearings . See 31 21 180 REPLACING BEARINGS (WHEEL HUB) FOR FRONT WHEEL |
| Vibration | Wheel imbalance | Balance wheels . See 36 10 508 STATIONARY WHEEL BALANCING |
| Radial/lateral rim runout | Check rims , replace if necessary. See 36 10 715 CHECKING RIM FOR FACE AND RADIAL RUNOUT | |
| Radial tire runout | Match or replace tires . See 36 10 209 CHECKING FRONT AND REAR WHEEL FOR FACE AND RADIAL RUNOUT , 36 12 001 CHANGING A TIRE (ON FRONT, REAR OR SPARE WHEEL) and 36 12 005 REPLACING A RUNFLAT TIRE | |
| Steering-wheel shake | Wheel imbalance | Balance wheels . See 36 10 508 STATIONARY WHEEL BALANCING |
| Radial/lateral rim runout | Check rims , replace if necessary. See 36 10 715 CHECKING RIM FOR FACE AND RADIAL RUNOUT | |
| Rubber mount of control arm faulty | Replace control arms . See 31 12 000 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CONTROL ARM | |
| Ball joint in control arm worn | Replace control arms . See 31 12 000 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CONTROL ARM | |
| Rubber mount of tension strut faulty | Replace rubber mounts on both tension struts . See 31 12 138 REPLACING RUBBER MOUNTS ON BOTH TENSION STRUTS | |
| Ball joint on tension strut worn | Replace both tension struts . See 31 12 080 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS | |
| Refer to TROUBLESHOOTING FOR STEERING | ||
| Excessive steering wheel play/steering wheel inclination | Rubber mount of control arm faulty | Replace control arms . See 31 12 000 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CONTROL ARM |
| Ball joint in control arm worn | Replace control arms . See 31 12 000 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CONTROL ARM | |
| Rubber mount of tension strut faulty | Replace rubber mounts on both tension struts . See 31 12 138 REPLACING RUBBER MOUNTS ON BOTH TENSION STRUTS | |
| Ball joint on tension strut worn | Replace both tension struts . See 31 12 080 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS | |
| Refer to TROUBLESHOOTING FOR STEERING | ||
| Rattling noise | Bolts for reinforcement plate loose | Tighten down bolts (refer to REMOVING AND INSTALLING/REPLACING REINFORCEMENT PLATE ) |
| Bolts for front axle carrier to engine carrier loose | Replace bolts (refer to LOWERING FRONT AXLE CARRIER ) | |
| Bolt for spring strut to swivel bearing loose | Replace bolt & nut (refer to REMOVING AND INSTALLING FRONT SPRING STRUT ) | |
| Ball joint in control arm worn | Replace control arms . See 31 12 000 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT CONTROL ARM | |
| Ball joint on tension strut worn | Replace both tension struts . See 31 12 080 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS | |
| Rubber mounts for stabilizer bar bracket faulty | Replace both rubber mounts of stabilizer bar bracket . See 31 35 000 REMOVING AND INSTALLING/REPLACING FRONT STABILIZER | |
| Ball joints on stabilizer link(s) worn | Replace both stabilizer links . See 31 35 005 REMOVING AND INSTALLING/REPLACING PUSH ROD (STABILIZER LINK) FOR LEFT/RIGHT STABILIZER | |
| Excessive tire wear | Front or rear axle alignment incorrectly adjusted | Check suspension components for damage; if necessary, carry out chassis/wheel alignment check . See 32 00 155 CHASSIS/WHEEL ALIGNMENT WITHOUT LOAD and 32 00 150 KDS CHASSIS/WHEEL ALIGNMENT CHECK WITH LOAD UP TO DESIGN POSITION |