CAR PROBLEMS

Understand the symptom before you see the car.

Search a symptom, warning light, noise, or smell. See what it could mean, when to stop, and what to ask before you decide about a used car.

Check a used car25 symptom guides for buyers
01

Symptoms

Visible changes in how a car feels, handles, or runs.

Car shakes at idleCar shakes when brakingCar vibrates when acceleratingSteering wheel shakes at highway speedCar pulls to one side
02

Noises

Sounds are clues. They are not a confirmed diagnosis.

Car clicking when startingCar clicking when turningCar squealing when acceleratingCar grinding when brakingCar humming at highway speed
03

Warning lights

Dashboard warnings need the vehicle manual and the right safety response.

Check engine light flashingBattery light on while drivingOil pressure light onABS light onTemperature warning light
04

Starting and driving problems

Starting, acceleration, stalling, and power-loss symptoms.

Car cranks but won't startCar starts then diesCar hesitates when acceleratingCar loses power uphillRPM goes up but the car does not accelerate
05

Leaks, smoke, and smells

Fluid, exhaust, and odor clues that can change the safety decision.

Water leaking under a carWhite smoke from the exhaustBlue smoke from the exhaustCar smells like gasBurning smell from a car
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