Car Symptoms, Diagnosed

No code to look up? Start here. Each symptom page ranks the likely causes from cheapest to most expensive and tells you exactly what to check first, before anyone sells you parts.

• ABS Light On Moderate
• Burning Smell From the Engine Moderate
• Car Clicks But Won't Start Moderate
• Car Shakes When Braking Moderate
• Check Engine Light Flashing Stop driving
• Engine Overheating Stop driving
• Humming Noise While Driving Moderate
• Limp Mode (Reduced Engine Power) Severe
• Rough Idle (Engine Shakes at a Stop) Moderate
• Squealing Noise When Starting the Car Low
• White Smoke From the Exhaust Severe