Symptom
Humming or Roaring Noise at Speed
A humming or roaring that rises with speed is commonly a wheel bearing or tire-wear issue and should be inspected.
SeverityModerate
Symptoms
Symptom
Car Pulling to One Side While Driving
Pulling to one side is often a tire, alignment, or brake issue, and is worth checking before it wears tires unevenly.
SeverityModerate
Symptom
Brake Pedal Feels Spongy
A spongy or sinking brake pedal can indicate air or moisture in the brake fluid, a leak, or a master-cylinder issue, and…
SeverityHigh
Symptom
Squealing Noise When Turning
Squealing in turns commonly points to a slipping belt under power-steering load, low tire pressure scrubbing, or worn steering/suspension parts. Clicking instead…
SeverityModerate
Symptom
Grinding Noise When Braking
Grinding when braking almost always means brake pads are worn to metal — the backing plate is machining your rotor with every…
SeverityCritical
Symptom
Blue Smoke From the Exhaust
Blue-gray smoke means the engine is burning oil. On startup it points to valve seals; under acceleration, to piston rings or (on…
SeverityHigh
Symptom
White Smoke From the Exhaust
Brief white vapor that disappears as the car warms is condensation — normal. Thick, continuous, sweet-smelling white smoke means coolant is entering…
SeverityHigh
Symptom
Steering Wheel Vibration at Speed
Steering vibration in a speed band (commonly 55–70 mph) is most often wheel balance. Vibration that appears when braking is rotors; vibration…
SeverityModerate
Symptom
Engine Overheating
An overheating engine is a stop-now event: continued driving turns a cooling repair into an engine replacement. Pull over, shut off, and…
SeverityCritical
Symptom
Burning Smell From the Car
Burning smells sort by type: burnt toast/acrid = electrical (stop now), hot metal/sweet = brakes or clutch, oily = a leak hitting…
SeverityHigh