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Your Mechanic
Lives in Your Pocket.

Ask any car question. Record your engine. Get instant, accurate answers from an AI that runs entirely on your iPhone. No signal. No subscriptions. No data collected.

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ThousandsVehicle Specs

456+Models

1979—2026Year Coverage

0 BytesData Collected

Android coming soon.

~/garage/2020-camry

> What oil does a 2020 Toyota Camry take?

2.5L I4: 0W-16, 4.8 qt 3.5L V6: 0W-20, 5.8 qt Hybrid: 0W-16, 4.5 qt

> My brakes are grinding. How bad is it?

Grinding means pads are worn to the backing plate. Metal on rotor. Stop driving and replace. Est: $250–$400 per axle.

Free Forever

Ask Anything About Your Car

From spec lookups to full diagnostic reasoning — trained on thousands of real mechanic examples.

Spec Lookup

Oil type, torque values, tire pressure, transmission fluid, spark plug gaps, coolant capacity. Exact numbers from a verified database.

DIY Guides

Step-by-step procedures with difficulty ratings, time estimates, tool lists, parts lists, and safety warnings.

Diagnostics

Describe a symptom. The AI reasons through possible causes, ranks them by likelihood and severity, and recommends next steps.

Mod Guidance

Turbo upgrades, suspension, wheel fitment, engine swaps, ECU tuning. Supporting mods, compatibility, and known issues.

Diagnostic Reasoning

Symptoms in.
Answers out.

Tell the AI what's wrong in your own words. It identifies likely causes, ranks them by probability, flags urgency, and tells you whether to fix it yourself or book a shop.

Understands vague descriptions (“clicking when I turn”)
Ranks causes by probability, severity, and diagnostic cost
Estimates DIY difficulty and parts cost where known

~/diagnosis/silverado

> My 2018 Silverado 5.3L is burning oil fast.

Likely causes: 1. Worn piston rings (common on EcoTec3) 2. Valve stem seal leaks 3. PCV valve malfunction 4. Valve cover gasket leak Check first: oil level + visual leaks Next: compression test

Full Torque Specs

Every bolt.
Every spec.

Drain plugs, lug nuts, spark plugs, calipers, oil filters. If it has a torque value, it's in the database — for your exact year, make, model, and engine.

Numeric values you can wrench to without second-guessing
Covers 456+ models from 1979 to 2026
Works in airplane mode, in the garage, on the road

~/torque/2019-civic

> Full torque specs, 2019 Honda Civic.

Oil drain plug: 29 lb-ft Lug nuts: 80 lb-ft Spark plugs: 13 lb-ft Brake calipers: 19 lb-ft Oil filter: hand tight + 3/4 turn

Pro Feature

Listen. Identify. Diagnose.

Record your engine. A neural audio encoder hears the acoustic pattern and generates a real diagnosis — all on your phone, in seconds.

Recording engine audio • 15.8s captured • analyzing…

Record

Tap the mic and hold your phone near the engine for 5–15 seconds.

Analyze

A neural audio encoder processes the sound and identifies the acoustic pattern.

Diagnose

The AI generates structured findings — causes, urgency, and whether it's DIY.

Real Diagnoses.
Not Pattern Tables.

The model understands what it's hearing and writes a structured report. Rod knock sounds different from belt squeal. Transmission whine sounds different from power steering failure. The AI knows the difference.

Rod Knock Turbo Failure Belt Squeal Timing Chain Transmission VTEC Rattle Power Steering Spark Knock

100%

Match

Engine Knock

SoundRhythmic metallic hammering

LocationBottom end (crankshaft area)

CauseWorn connecting rod bearings

UrgencyStop driving immediately

DIY?No — bottom end rebuild required

Available in Check Engine Chat Pro · $9.99 $4.99 one time. Own it forever.

Your MechanicLives in Your Pocket.