Learn how to check engine compression with our practical guide. Discover step-by-step methods, essential tools, and how to interpret results for diagnosing engine issues like misfires or oil consumption. Includes pro tips and common mistakes to avoid.

Diagnose car exhaust smoke colors (white, blue, black) with our comprehensive guide. Learn causes, repair costs, emergency actions, and DIY fixes to prevent engine damage. Includes mechanic-approved troubleshooting tables.