Why does my car make a whining noise when accelerating?

A whining noise during acceleration usually points to one of a few common issues: power steering, transmission, alternator, belt pulleys, or drivetrain/differential wear.

Quick ways to narrow it down:

• Whine changes when turning the wheel: likely power steering pump or low power steering fluid.
• Whine changes when shifting gears or only happens in gear: likely transmission fluid, filter, or internal transmission wear.
• Whine follows engine RPM even while parked: often alternator or a worn belt tensioner/idler pulley.
• Whine matches vehicle speed, not engine RPM: possible wheel bearing or differential issue.

Start with the easy checks:

1. Check power steering fluid.
2. Check transmission fluid level and condition.
3. Listen in Park/Neutral while revving the engine.

If the noise is getting louder or you notice steering, shifting, or warning light problems, have it inspected soon.