In this class we will cover the next generation of GM V engines the EcoTec, new engine family includes a 4.3L V6, a 5.3L V-8 and a 6.2L V-8. These engines feature three technologies – direct injection, cylinder deactivation (Active Fuel Management) and continuously variable valve timing.

Covered in this class is operational aspects of the mechanical and control systems. Service of these systems can be tricky so we will cover some tips and tricks to help you in the shop. With the three systems these engine use for fuel and drivability controls some drivability issues can be a challenge so we will have some drivability diagnostics and testing procedures.

Course Outline

OPERATION - 4.3L V6, a 5.3L V-8 and a 6.2L V-8

• Engine Changes from previous generations
• Direct Injection operation (simplified)
• AFM operation
• VVT operation

SERVICE

• Direct injection System component replacement
• AFM system diagnostics and replacement
• VVT/lubrication system diagnostics
• Drivability issue case studies

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