How to Read Spark Plugs: Color Meanings and Wear Signs
How to Read Spark Plugs: Color Meanings and Wear Signs Reading spark plugs is a diagnostic technique that reveals engine health by analyzing combustion dep…
engine troubleshooting
Compression Test: How to Check Engine Health
Quick Answer:An engine compression test measures the pressure in each cylinder to diagnose issues like worn piston rings, leaking valves, or a blown head gasket. A healthy engine should have compression between 125-175 PSI per cylinder, with no more than 10% variation between cylinders. The Day I Diagnosed a “Dead” Engine with a $40 Tool … Read more