Bostech Auto Blog

Table of Contents LMM Duramax Overview and Specifications DPF Clogging and Regeneration Problems EGR Valve, EGR Cooler, and Intake Soot Buildup LMM Fuel Injector Problems CP3 Injection Pump Wear and Low Rail Pressure VGT Turbocharger Vane Sticking and Up-Pipe Leaks Coolant Loss: Water Pump, Turbo …

Table of Contents How to Identify Which Duramax You Are Looking At Duramax Generations at a Glance LLY Duramax (2004.5-2005) LBZ Duramax (2006-2007) LMM Duramax (2007.5-2010) LML Duramax (2011-2016) Head-to-Head Comparison Which Duramax Should You Buy? Pre-Purchase Inspection Checklist for Any Du …

Table of Contents Introduction: The Duramax Everyone Wants The LBZ Duramax at a Glance Problem 1: Water Pump Failure Problem 2: Injector Harness Chafing and Misfires Problem 3: Fuel Injector Wear and Balance Rates Problem 4: VGT Turbo Vane Sticking Problem 5: Air in Fuel and Filter Head Problems …

Table of Contents Introduction: Ford Builds Its Own Diesel The 6.7L PowerStroke Across Three Generations Problem 1: CP4 High Pressure Fuel Pump Failure Problem 2: EGR Cooler and EGR Valve Failure Problem 3: Turbocharger Failures by Generation Problem 4: Radiator and Cooling System Leaks Problem 5 …

Table of Contents Introduction: The Short Lived Twin Turbo PowerStroke The 6.4L PowerStroke Platform at a Glance Problem 1: EGR Cooler Failure (Two Coolers, Twice the Trouble) Problem 2: Radiator Leaks and Cooling System Weakness Problem 3: Cracked Turbo Up Pipes Problem 4: High Pressure Fuel Pum …

Table of Contents Introduction: The Bridge Between LB7 and LBZ The LLY Duramax at a Glance Problem 1: Overheating Under Load Problem 2: Restrictive Turbo Inlet Manifold Problem 3: Head Gasket Failure Problem 4: Cooling Stack and Fan Clutch Weakness Problem 5: Water Pump Failure Problem 6: Injecto …