Troubleshooting
Common car problems and the first facts to collect
Similar symptoms can have very different causes. Use these prompts to collect facts, not to replace an inspection.
The car will not start
Note whether the engine cranks, whether lights dim, whether you hear a click, and whether a jump changes the behavior. Avoid repeated long cranking.
Temperature rises
Turn off air conditioning, follow the owner’s manual, and find a safe place to stop if the warning persists. Never open a hot pressurized cooling system.
A new leak appears
Photograph the location and color without touching or tasting the fluid. Fuel odor, brake-fluid loss, or rapid coolant loss can require towing.