AI Car Diagnosis
Tell us what's happening with your car. Our AI analyzes symptoms and provides possible causes, OBD-II codes, and repair estimates.
Step 1/4·What
What do you notice?
Pick the symptom that best describes what's happening
Popular Diagnoses
1780 results
Check Engine Light On Without Other Symptomslow
Est. Free (gas cap check) to $150 (sensor replacement) or more if catalytic converter is involved1 view
Flashing Check Engine Light During Accelerationcritical
Est. $150–$1,200+ depending on cause (e.g., spark plugs $150–$300, ignition coils $200–$600, catalytic converter $800–$1,200+)1 view
Battery Warning Light On While Drivinghigh
Est. Alternator replacement: $300–$800; Battery cable repair: $50–$200; Serpentine belt: $100–$2501 view
Airbag Warning Light Always Onhigh
Est. $100–$150 for diagnostic scan; $200–$600 for clock spring replacement; $500–$1,200+ for module replacement.1 view
Transmission Slipping or Clutch Failurehigh
Est. $100–$200 for fluid service; $800–$2,500+ for clutch or transmission repair/replacement1 view
Check Engine Light with Shaking or Power Losshigh
Est. $100–$400 for diagnosis and basic ignition repairs; up to $1,000+ for fuel system or major engine work1 view
Oil Pressure Warning Light On While Drivingcritical
Est. $50–$150 for oil change and sensor check; $500–$1500+ for oil pump replacement or engine repairs1 view
ABS Warning Light Always Onmedium
Est. $100 - $500 depending on cause (sensor replacement $100-$250, module repair $300-$800)1 view
Tire Pressure Monitoring System (TPMS) Warning Light Always Onmedium
Est. $0 (checking and inflating tires) to $50-$150 per sensor for replacement (including labor and reprogramming).1 view
Engine Cranks But Won't Start - Clicking Soundhigh
Est. $0 (clean terminals) to $200+ (battery replacement) or $300-$600 (starter replacement)1 view
Engine Cranks but Won't Start with Clicking Soundhigh
Est. $100–$400 (battery replacement) or $200–$600 (starter replacement)1 view
Engine No Crank / No Startcritical
Est. $100–$400 for battery or terminals; $300–$600 for starter replacement; $100–$200 for switch/relay1 view
Engine Cranks But No Start (No Sound)high
Est. $100–$400 for battery replacement; $200–$600 for starter replacement; $50–$150 for cable/connection repair1 view
Hard to Start or Won't Start When Engine is Warmhigh
Est. $100–$600 depending on the cause (sensor replacement $100–$300, fuel pump $400–$600, vapor lock diagnosis minimal).1 view
Cold Start Cranks But Won't Starthigh
Est. $100 - $600 depending on cause (sensor $50-150, fuel pump $200-600, ignition parts $100-300)1 view
Hard Starting Diagnosishigh
Est. $100–$1,200 depending on cause (fuel pump $400–$800, sensor $150–$400, tune-up $200–$600)1 view
Engine Starts Then Dies Immediatelyhigh
Est. $100 - $800 depending on cause (e.g., cleaning throttle body ~$100, fuel pump replacement ~$400-$800)1 view
Engine Oil or Transmission Fluid Leakhigh
Est. $150 - $1,500 depending on source (gasket replacement vs. component replacement)1 view
Heavy Steering Diagnosismedium
Est. $100 - $800+ depending on cause (fluid top-off cheap, pump or rack replacement costly)1 view
Engine Starts Then Dies When Coldhigh
Est. $50–$400 depending on cause (sensor $50–$150, IACV $100–$300, fuel pump $200–$400)1 view
Brown/Black Fluid Leak Diagnosismedium
Est. $100 - $500 depending on the source and repair needed1 view
Coolant Leak Diagnosishigh
Est. $150 - $800 depending on the part (hose, water pump, radiator) and labor1 view
AC Condensation Drain Leaklow
Est. $0 (normal operation) to $50 if drain cleaning is needed1 view
AC Not Cold and Bad Smell Diagnosismedium
Est. $100–$500+ depending on cause (recharge: $100–$200; compressor replacement: $400–$1,000; evaporator cleaning: $100–$300).1 view