compression test Archives - Tomorrows Technician
Engine Compression Testing

Read this article to find out how to reduce rotating friction and increase running compression.

Pressure Transducer Case Study: 2002 Explorer Misfire

Instructor John Thornton presents this in depth comprehensive case study of a 2002 Ford Explorer 4.0L vin E with a misfire at idle speed. John details the use of his scope and pressure transducer to perform a cranking compression test and goes on to point out the various indicators you should be watching your scope pattern for and how to identify problems.