Frequently Asked Questions

You record up to 15 seconds of your car sound using your phone's microphone. Our AI analyzes the audio along with any context you provide (like when the sound occurs) to generate a diagnosis with severity level, estimated repair cost, and recommended next steps. Results are delivered in about 60 seconds.

Yes — completely free. Record your car sound and get an AI-powered diagnosis at no cost. No account, no subscription, no credit card required.

Fix My Car Sound covers 19 diagnostic categories including rod knock, engine misfire, brake wear indicator, wheel bearing noise, power steering pump whine, timing chain rattle, exhaust leak, suspension clunk, differential gear whine, valve train and lifter noise, torque converter shudder, heat shield rattle, metal-on-metal grinding, bad starter, turbo whine, transmission pump whine, vacuum leak, accessory belt noise, and normal engine operation.

Our AI achieves approximately 76% top-1 accuracy and 88% top-3 accuracy across all 19 categories. For conditions like rod knock, brake wear indicator, and wheel bearing noise, accuracy is near 100%. Some conditions — particularly vacuum leaks or accessory belt noise — are harder to diagnose from audio alone and may benefit from an OBD-II scan. Every diagnosis includes a confidence score.

Your audio recording is uploaded securely, processed for AI analysis, and stored in encrypted cloud storage. Audio files are automatically deleted after 90 days. We never sell or share your audio with advertisers. You can request deletion at any time by contacting support@fixmycarsound.com.

Fix My Car Sound is optimized for internal combustion engine (ICE) vehicles and hybrids. While some categories like brake wear indicator and wheel bearing noise apply to electric vehicles, many diagnostic categories are specific to ICE components (engine misfire, exhaust leak, timing chain, etc.). EV-specific diagnostics may be added in the future.

Yes — we prioritize new categories based on user feedback. If you have a sound we don't cover (CV joint noise, for example) or think a category needs improvement, let us know via the contact form. We read every message.

Email us at support@fixmycarsound.com or use the contact form. We aim to respond within 24 hours on business days.