Frequently Asked Questions

Quick answers to common car troubleshooting questions

Troubleshooting Basics

Learn the systematic approach to identifying vehicle problems through observation and testing.

Step-by-step guide to diagnosing issues using symptoms, tools, and logical testing.

The systematic approach: identify, research, theorize, test, fix, verify, and document.

How to diagnose engine-specific problems by testing fuel, spark, and compression.

Yes! Learn about affordable OBD-II scanners and what you can diagnose at home.

How Bluetooth adapters and smartphone apps turn your phone into a scanner.

Professional tools like Snap-on, Autel, and manufacturer-specific scanners.

Typical costs range from $80-$200 depending on the shop and complexity.

Compare shop prices, free options at auto parts stores, and DIY alternatives.

Warning signs include unusual noises, smoke, power loss, and warning lights.

Inadequate lubrication and overheating are the leading causes of engine damage.

Battery, starter, fuel, and ignition issues often mimic engine failure.

Check the essentials: fuel delivery, spark, and air flow.

A maintenance schedule based on mileage intervals for filters, fluids, and major services.