California DMV Permit Test (Class C)Vehicle Operation and MaintenanceHard
You are driving on a freeway and observe that your vehicle is consistently drifting to one side, requiring constant steering correction. What is the most likely cause of this issue?
- AUneven tire pressure or an alignment problem.
- BAn overinflated tire on the opposite side of the drift.
- CA loose steering wheel, indicating a major control failure.
- DA dirty windshield affecting your perception of the road.
Show answer & explanationAnswer & explanation
Correct answer: A. Uneven tire pressure or an alignment problem.
Consistent drifting or 'pulling' to one side is a classic symptom of either uneven tire pressure (one tire having significantly less air than others) or an issue with the vehicle's wheel alignment. Both affect how the tires contact the road and can lead to steering difficulty and uneven tire wear.
Why the other options are wrong
- B. An overinflated tire would typically cause less contact with the road, but uneven pressure is the broader and more accurate cause of drift.
- C. A loose steering wheel would manifest as excessive play in the steering, not necessarily a consistent drift to one side, and would be a much more severe and immediate failure.
- D. A dirty windshield affects visibility, not the vehicle's physical direction of travel or steering mechanics.
Vehicle Drifting/Pulling
When a vehicle consistently veers to one side without driver input, often indicating a problem with tire pressure or wheel alignment.
- Common causes: uneven tire pressure, poor wheel alignment.
- Affects steering control and tire wear.
- Requires prompt inspection and correction.
Memory trick: Drift? Don't Delay, Diagnose and Drive Away Safely.