The Basics of the 6.5 Diesel Fuel System. The 6.5 diesel fuel system is a crucial component of the engine, responsible for supplying the necessary fuel to power the vehicle. Understanding the basics of this system can help in troubleshooting and maintaining the engine's performance. At the heart of the 6.5 diesel fuel system is the fuel.. The 6.5L Detroit Diesel engine was introduced in 1992 as the new and improved version of the 6.2L Diesel engine. Detroit Diesel designed the engine for General Motors, and it was the second collaboration between the pair, following the earlier 6.2L Detroit Diesel engine.While most of the 6.5L engines were sold with a turbocharger for improved performance, some naturally aspirated versions were.
Our mission here is to help GM 6.5L diesel owners achieve the very best results. The 6.5L Turbo Diesel engine option first became available in GM's 1992 model year 2500/3500 series pickup trucks. Looking back, we now know that the 1992 & 93 model years were the best years for the 6.5L in terms of performance, customer satisfaction and sales volume.. EGR Valve Legend 1. Cylinder 2 2. Cylinder 4 3. Cylinder 6 4. Cylinder 8 5. Cylinder 7 6. Cylinder 5 7. Cylinder 3 8. Cylinder 1. Diesel Engines Troubleshooting. Engine Diagrams.. Management - PCM CONTROL. PCM control can be divided into eight subsystems: • Fuel Control • Timing Control •… GM/Detroit 6.5L - Engine Management.