What should I look for when test driving a used car?
Before you drive
Start the engine and let it idle. Listen for rough idling, knocking, or ticking sounds. Check for smoke from the exhaust; blue smoke can mean oil burning, white smoke a coolant leak, and black smoke a fuel issue. Make sure all warning lights go off after starting.
Adjust the seat and mirrors, and familiarize yourself with the controls. This is also a good time to check that the AC blows cold and the heater blows hot.
On the road
Accelerate smoothly and firmly; the transmission should shift without hesitation or jerking. Brake at different pressures and listen for grinding or squealing. Steer on a straight, flat road and see if the car pulls to one side. Go over bumps to check the suspension for clunks or excessive bounce.
Drive at highway speeds if possible to check for vibrations, wind noise, and how the car tracks. Also test parking maneuvers and tight turns to check the steering and turning radius.
- Test the brakes in a safe area, including hard stops.
- Try all gears, including reverse.
- Check the cruise control and any driver-assist features.
- Listen for rattles from the dashboard or doors.
- After the drive, look for new leaks or smells.
Common mistakes
- Only driving around the block and not reaching highway speeds.
- Ignoring subtle vibrations or noises that could indicate expensive repairs.
- Not testing all the electronics because you're focused on the drive.
