Has Ford fixed the 7.3 gas engine problems?

Yes, Ford has addressed the major issues with its 7.3-liter gas engine. The company has made several improvements to the engine design and manufacturing process to improve reliability and performance.

Overview of the 7.3 Gas Engine Issues

The 7.3-liter V8 gas engine was introduced by Ford in 2019 as an option for its Super Duty truck lineup. However, the engine faced several problems early on, including issues with oil consumption, spark plug failures, and other reliability concerns. These problems led to customer complaints and negative reviews of the engine.

Ford's Fixes for the 7.3 Gas Engine

• Improved Oil Control: Ford has made changes to the oil control system, including using a more robust oil pump and revising the piston ring design to reduce oil consumption.


• Spark Plug Upgrades: The company has updated the spark plug design and materials to address the frequent failures reported by some owners.


• Manufacturing Process Enhancements: Ford has implemented tighter quality control measures and made adjustments to the engine assembly process to improve overall build quality.

These improvements have helped to address the major issues that plagued the 7.3-liter gas engine early on. While no engine is perfect, customer satisfaction and reliability ratings for the 7.3 have improved significantly since the initial launch.

Conclusion

In summary, Ford has taken steps to fix the problems with its 7.3-liter gas engine, including upgrades to the oil control system, spark plugs, and manufacturing processes. These changes have helped to improve the engine's reliability and performance, addressing the concerns that were raised by some early owners.

What is the recall on the 7.3 Ford?

Different Ford models with the 7.3-liter gas engine show unique issues based on their build year and configuration. The 2021 Ford E-Series faced a recall due to mispositioned insulation, which caused overheating and increased the risk of fire. Harsh driving habits can also affect Ford 7.3 gas longevity and reliability.

How many miles will a Ford 7.3 gas engine last?

The Ford 7.3 gas engine is considered a durable and reliable engine, with a design built for longevity. While its potential lifespan can be high (300,000-500,000 miles), key factors for long-term success include diligent maintenance, particularly regular oil changes. Potential issues exist, such as past wiring harness failures or, less commonly, lifter and cam wear in some early models, but its overall reputation is positive due to its robust build and relative mechanical simplicity compared to some other modern engines. 
Strengths

• Robust construction: Features include a cast-iron block, six-bolt aluminum heads, and a forged steel crankshaft, all contributing to its durability. 
• No cylinder deactivation: The absence of cylinder deactivation technology eliminates a potential source of failure points found in some other modern engines. 
• Proven design: A version of the 7.3L was previously used in school buses, which speaks to its potential for long service life. 
• Repairability: It is considered less complicated than some modern engines, and the block is thick enough for future rebuilds. 

Considerations and potential issues

• Lifter and cam wear: Some reports indicate a potential issue with lifter and cam failure, especially in heavier-duty applications, though this may be less common in newer iterations. 
• Wiring harness issues: Like many engines, the wiring harness can deteriorate due to heat and vibration, leading to performance problems. Regular inspection is recommended. 
• Maintenance is crucial: The engine's longevity is highly dependent on consistent and proper maintenance, especially regarding oil changes. A lack of care can lead to sludge buildup, even in a well-built engine. 

Summary for longevity
To ensure the longest life from your 7.3 gas engine, focus on these key areas:

• Change the oil regularly: Use high-quality oil and follow the recommended change intervals. A mechanic can even inspect for sludge by removing a cam sensor. 
• Inspect the wiring: Be on the lookout for signs of aging wiring harnesses, which can cause misfires and other performance issues. 
• Don't ignore warning signs: Address any unusual engine noises, hesitation, or rough idle, as these could indicate a developing problem, especially with the lifters. 

What is the problem with the 7.3 Godzilla engine?

Common problems reported for the 7.3L Godzilla engine include internal issues like camshaft and lifter failures, which can be more pronounced in commercial trucks that idle frequently. Other problems include electrical malfunctions, particularly parasitic battery drain, leading to issues like random alarm activations and features failing to work. Some owners have also experienced rough idling, oil leaks, poor fuel economy, and transmission problems.
 
This video explains some of the most common issues with the 7.3L Godzilla engine, including camshaft and lifter failures: 58sGetty's GarageYouTube · Nov 25, 2023
Engine and mechanical problems 

• Camshaft and lifter failure: This is a significant issue, particularly in trucks that idle for extended periods. Lifter failure can damage the camshaft, and metal particles from this failure can contaminate the entire engine. 
• Engine knock: Owners report knocking or ticking sounds, which can be a symptom of low oil pressure, worn bearings, or piston problems. 
• Oil leaks: Oil leaks, particularly from the valve cover gaskets and oil pan gasket, are common. 
• Rough idling: Some users experience a rough or inconsistent idle, sputtering, or hesitation during startup. 
• Fuel system issues: Clogged fuel filters, dirty injectors, and other fuel system problems can cause poor performance and fuel economy. 
• Transmission problems: Some owners have reported transmission leaks. 

Electrical problems 

• Parasitic battery drain: This is a frequent complaint, causing symptoms like the battery constantly needing to be charged, the passive entry system failing, and other random electrical malfunctions.
• Random alarm activations: The alarm system may go off unexpectedly.
• Faulty lights and systems: Dome lights, perimeter lights, and radio presets can fail intermittently.
• Unexpectedly locking/unlocking: The vehicle may lock or unlock itself randomly. 

How to address these problems

• For internal issues: Regularly check the oil filter for metallic particles as an early warning sign of cam/lifter failure. Proper and timely maintenance is crucial. 
• For electrical issues: Take the vehicle to the dealer to diagnose and fix the specific electrical faults, especially parasitic drains, which can be complex to pinpoint. 
• For general performance: Address issues like rough idling or engine knock promptly, as they can lead to more serious problems if ignored. 

How reliable is the new Ford 7.3 gas engine?

The Ford 7.3 gas engine, known as the "Godzilla," is considered very reliable, durable, and a strong performer, especially compared to previous Ford gas engines. Its reliability stems from a robust cast iron block and its ability to handle heavy loads. However, potential issues like lifter failures have been reported, especially in commercial applications with high idle times, which some attribute to lubrication issues or material defects in certain early models. 
Strengths 
This video discusses the reliability of the Ford 7.3 Godzilla engine: 58sGetty's GarageYouTube · Oct 2, 2025

• Durability: The cast iron block with iron liners is more resistant to warping under load, contributing to longevity. 
• Torque: It is a high-torque powerhouse, providing good performance for towing and heavy work. 
• Maintenance costs: Gas engines generally have lower maintenance costs than their diesel counterparts. 
• Cost savings: The engine is less expensive upfront than a diesel option, with cheaper oil changes and potential repairs. 

Potential weaknesses and things to watch for 
This video explains the potential issues with the Ford 7.3 Godzilla engine, including lifter failures: 58sFlying WrenchesYouTube · Oct 14, 2024

• Lifter and camshaft failures: While not widespread across all engines, lifter failures have been reported, sometimes leading to metal contamination requiring block replacement. This seems to be more common in commercial vehicles with extended idle times. 
• Fuel economy: Fuel economy is poor, generally ranging from 6-15 mpg depending on driving conditions, load, and other factors. 
• Transmission concerns: Some users have reported issues with the 10-speed transmission in conjunction with the 7.3L engine, citing jerking and slipping. 
• Other issues: Less common problems can include a faulty Injection Pressure Regulator (IPR) valve. 

What to do if you own or are considering buying one

• Proper maintenance is crucial: Adhere to the recommended service intervals, including changing the fuel filter every other oil change and servicing the transmission regularly. 
• Address symptoms quickly: If you notice symptoms like dimming lights, engine hesitation, or unusual noises, get them checked out promptly to prevent potential damage. 
• Be aware of high idle time: If the engine is used in commercial applications with long periods of idling, be extra vigilant about lubrication and maintenance to mitigate the risk of lifter failure. 
• Consider a transmission tune: For trucks equipped with the 10-speed transmission, a transmission tune may help prevent some of the reported shifting issues.