Prosource Diesel

Duramax Firing Order Overview The Duramax diesel engine has earned a reputation for durability, torque, and towing confidence. While turbo systems, fuel delivery, and tuning often steal the spotlight, one foundational concept quietly supports all of them: firing order. This precise ignition sequence determines how smoothly the engine runs, how stress is distributed internally, and how reliably power reaches the wheels. For truck owners, technicians, and performance enthusiasts alike, understanding this concept is key to long-term engine health. Meaning of Firing Order A  firing order  is the specific sequence in which each cylinder ignites during the engine’s operating cycle. In a V8 diesel, eight cylinders fire one after another in a carefully engineered pattern. This pattern is designed to keep the engine balanced, prevent excessive vibration, and allow the crankshaft to rotate smoothly. Rather than firing cylinders randomly, manufacturers select a sequence that: Spreads com...

  Spoologic Stage 2 Turbo Overview For Ford 6.0L Powerstroke enthusiasts, upgrading the turbocharger can dramatically transform your truck’s performance. Among the options available, the  Spoologic Stage 2 turbo  has emerged as a top choice for drivers seeking more power, improved efficiency, and enhanced reliability. Designed for both street and towing applications, this turbocharger combines advanced engineering with precision performance to deliver an impressive driving experience. This article delves into the features, specifications, and benefits of the Spoologic Stage 2 turbo, highlighting why it’s considered the  best Stage 2 turbo 6.0 Powerstroke  owners can install. Introduction to Spoologic Stage 2 Turbo The Spoologic Stage 2 turbo is a performance-focused upgrade engineered for the Ford 6.0L Powerstroke engine. Unlike stock turbochargers, which are designed primarily for durability and moderate efficiency, the Stage 2 turbo emphasizes increased airflo...

  Introduction The modern diesel pickup market demands strength, efficiency, and long-term reliability, and General Motors designed the L5P to meet those expectations. Still, owners often discuss l5p duramax issuesm related to emissions, sensors, and fueling as mileage increases. Built as a refined evolution of the lp5 engine platform, this powerplant delivers impressive towing power, but understanding its weaknesses helps drivers plan maintenance, control costs, and realistically assess how long will a l5p duramax last under real-world conditions. L5P Duramax Engine Overview The  L5P Duramax  is a 6.6-liter V8 turbo-diesel introduced for heavy-duty Chevrolet and GMC trucks. It was engineered to comply with strict emissions regulations while significantly increasing output over earlier versions. With a factory rating exceeding 440 horsepower and massive torque, it quickly became popular among fleet operators and towing enthusiasts. This engine uses a high-pressure common-...

  Duramax diesel engines have become a cornerstone of heavy-duty performance and reliability in Chevrolet and GMC trucks over the past two decades. For anyone curious about how these powerplants have evolved, this guide breaks down the major milestones, changes, and characteristics of each generation — from the original early-2000s models to modern, high-output diesels. Along the way, you’ll get a clear timeline that helps you understand durmax engines by year and key developments that shaped the platform. Introduction to Duramax Power When General Motors teamed up with Isuzu in the late 1990s to develop a modern diesel engine for its heavy-duty pickups, the result was something that quickly reshaped the market. Prior diesels were underpowered and unreliable, but the new Duramax combined turbocharging, direct fuel injection, and robust internal engineering to offer impressive torque and longevity. From its debut in 2001 to today’s advanced variants, every generation has brought mea...

  Introduction to the CP4 Pump Modern diesel engines demand precise fuel delivery at extremely high pressures to meet performance and emissions standards. To achieve this, manufacturers adopted compact high-pressure fuel systems capable of supplying common rail injectors with consistent flow. Among these systems, the CP4 series became widely used across light- and medium-duty diesel platforms. While efficient and capable, it has also gained attention due to reliability concerns, making it a frequent topic among truck owners, technicians, and fleet managers. Understanding how this pump operates, why issues occur, and what solutions exist helps owners make informed maintenance and upgrade decisions. How the CP4 Pump Works The  CP4 pump  is a high-pressure injection pump driven mechanically by the engine. Its role is to draw low-pressure fuel from the tank, compress it to extremely high pressure, and deliver it to the common rail feeding the injectors. Internal cam lobes and...

  The 5.9L Cummins 24-valve engine has earned legendary status among diesel enthusiasts for its durability, tuning potential, and real-world performance. One of the biggest factors that determines how this engine delivers power—and how long it lasts—is the turbocharger. Choosing the right turbo is not just about peak horsepower; it’s about balanced airflow, controlled exhaust gas temperatures, and long-term reliability. A well-matched turbo upgrade can transform throttle response, towing capability, and daily drivability without compromising engine life. This article breaks down how a modern turbo upgrade impacts power output and reliability on a 5.9 Cummins 24-valve, focusing on design, boost control, and performance characteristics. 5.9 Cummins Turbo Overview The factory  turbo on the 5.9 Cummins 24-valve  was designed to meet emissions and durability standards rather than maximize airflow. While reliable, stock units often become restrictive once fueling is increased. ...