Legendary Reliability: Why the 7.3 Powerstroke Still Reigns Supreme
Apr 23 2025

Legendary Reliability: Why the 7.3 Powerstroke Still Reigns Supreme

Title: Legendary Reliability: Why the 7.3 Powerstroke Still Reigns Supreme When it comes to legendary diesel engines, few have earned a reputation like the 7.3L Powerstroke. Originally produced by Navistar International and used in Ford Super Duty trucks from 1994 to 2003, this powerhouse has become a symbol of unmatched reliability, long-term durability, and no-nonsense […]

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Is Your LLY Duramax FICM Failing? Know the Signs.
Mar 4 2025

Is Your LLY Duramax FICM Failing? Know the Signs.

Is Your LLY Duramax FICM Failing? Know the Signs. The 2004.5-2005 LLY Duramax engine, while a powerhouse, is known for its Fuel Injection Control Module (FICM) vulnerabilities. This crucial component regulates the voltage to your injectors, ensuring proper fuel delivery and engine performance. But when it starts to fail, it can lead to a host […]

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Unleash the Beast: Choosing the Best Chip for Your 7.3 Powerstroke
Feb 24 2025

Unleash the Beast: Choosing the Best Chip for Your 7.3 Powerstroke

The 7.3 Powerstroke. It’s a legend. A workhorse. A symbol of American diesel ingenuity. But even legends can be improved. If you’re looking to squeeze every ounce of potential from your 7.3, a performance chip is a must-have. But with so many options on the market, how do you choose the best one? Fear not, […]

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What is a 6.7 Powerstroke Disaster Prevention Kit?
Feb 18 2025

What is a 6.7 Powerstroke Disaster Prevention Kit?

6.7 Powerstroke Disaster Prevention Kits: A Shield Against Catastrophic Failure The 6.7L Powerstroke is a robust engine, but like any diesel, it has its vulnerabilities. One of the most concerning is the potential for catastrophic high-pressure fuel pump (HPFP) failure, often triggered by contaminated fuel. This failure can send debris throughout the entire fuel system, […]

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When to Replace 7.3 Powerstroke Injector Cups
Feb 12 2025

When to Replace 7.3 Powerstroke Injector Cups

7.3 Powerstroke Fuel Injector Cups: When and Why They Need Replacing The 7.3L Powerstroke is a legend, known for its ruggedness and reliability. However, even legends have their weak points. One area that can cause headaches for 7.3 owners is the fuel injector cups. These seemingly small components play a crucial role, and when they […]

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What is a 6.7 Powerstroke Contaminated Fuel System?
Feb 12 2025

What is a 6.7 Powerstroke Contaminated Fuel System?

The 6.7L Powerstroke diesel engine is a workhorse, known for its power and reliability. But like any diesel engine, it’s susceptible to fuel system contamination. A contaminated fuel system can lead to a host of problems, from decreased performance to costly repairs. At Full Force Diesel, we see the effects of fuel contamination all too […]

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7.3 Powerstroke Valve Cover Gasket Issues & Problems
Feb 13 2023

7.3 Powerstroke Valve Cover Gasket Issues & Problems

 We continuously receive phone calls asking for help with an engine running issue that typically leads back to the one piece under valve cover gaskets and harnesses. This style of valve cover gasket has the harnesses built into them that cannot be removed from gasket. They are typically half the price of Ford Motorcraft or OE brands. These are cheap for a reason! Think twice before installing. 

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7.3 Powerstroke Injector Common Failures
Jan 26 2023

7.3 Powerstroke Injector Common Failures

We want to share with you some of the common issues and failures we see with the 7.3 Powerstroke injectors after many years of rebuilding, and working on them. First, we need to know how a Hydraulic Electronic Unit Injector (HEUI) works. To keep it simple and without overcomplicating things, let’s break it down as […]

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How do you know if your 7.3 Powerstroke Injectors are bad?
Dec 21 2021

How do you know if your 7.3 Powerstroke Injectors are bad?

The most common symptoms of a bad injector on a 7.3L Powerstroke is misfires when the engine is cold or hard starts during cold weather.  These two symptoms are the easiest to identify for the truck owner in an everyday driving situation.  Cold hard starts are typically caused by poor truck maintained without frequent oil […]

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