scope Archives - Tomorrows Technician
Scoped Out

Chris Adams, Certified Transmission diagnostician, shares the story of a 6R140 and stresses the importance of control.

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.

Case Study: 2003 Trailblazer with Rough Idle P0017 Tech Tip

A 2003 Chevy Trailblazer with a rough idle condition comes in for repair with variable cam timing engine with P0106 and P0017 codes. Bill Fulton goes into detail talking about these codes, the conditions that can causes them, and how to complete your diagnostics by using your scope to accurately interpret the related data you get from the scan tool as well as your scope.

Ignition and EGR Testing Tip Clip

Using scope patterns, Jim Wilson discusses and demonstrates a procedure for diagnosing EGR related misfire issues by examining scope patterns of the different cylinders.