ASE A4 Suspension and SteeringSteering System Diagnosis and RepairMedium
A technician is performing a pre-alignment inspection. The customer reports a feeling of 'looseness' in the steering and slight wander at highway speeds. The technician observes that the inner tie rod ends have noticeable axial (in-and-out) play when pulled and pushed. How would this condition primarily affect the vehicle's handling?
- ACause excessive steering sensitivity and twitchiness.
- BProduce a high-pitched whine from the power steering pump.
- CLead to a 'dead spot' in the steering and inconsistent toe settings.
- DResult in a consistent pull to one side during braking.
Show answer & explanationAnswer & explanation
Correct answer: C. Lead to a 'dead spot' in the steering and inconsistent toe settings.
Axial play in the inner tie rod ends means that the steering rack can move slightly without immediately translating that movement to the wheels. This creates a 'dead spot' or looseness in the steering wheel, where small inputs don't affect the wheels. This play also makes it impossible to maintain a consistent toe setting, leading to wander and unpredictable handling, especially at higher speeds.
Why the other options are wrong
- A. Excessive sensitivity/twitchiness is typically caused by too much toe-out or worn steering components that are too tight, not loose axial play.
- B. A high-pitched pump whine is related to hydraulic issues (e.g., air, low fluid, internal wear), not mechanical play in the steering linkage.
- D. A consistent pull during braking is usually related to brake system issues (e.g., seized caliper, collapsed hose) or extreme alignment issues, not inner tie rod play alone.
Inner Tie Rod Axial Play
Axial (in-and-out) play in an inner tie rod end leads to a 'dead spot' in the steering, making the vehicle feel loose and causing wander due to inconsistent toe settings, especially at speed.
- Allows rack movement without wheel response.
- Causes 'dead spot' and loose steering feel.
- Prevents accurate toe adjustment, causing wander.
Memory trick: In-and-out play makes steering feel like a dead zone.