Car symptoms, explained
Pick what your car is doing. Each guide has a card you can show your mechanic.
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Grinding noise when brakingMetal-on-metal sound when you press the brake pedal.
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Check engine light: flashing vs. steadyFlashing is urgent. Steady means book an appointment.
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P0420 code (catalyst efficiency below threshold)Before paying for a $2,000+ converter, rule out the cheaper causes.
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What brake pads and rotors should costFair price ranges, per axle, and how to read a brake quote.
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Car shakes at highway speedSteering wheel or seat shakes around 50–70 mph.
New guides are added regularly.