How to Diagnose a P0684 Code on a Ford 6.4L Diesel Engine

AvatarByCarl Frisch

The P0684 code is a diagnostic trouble code (DTC) for a Ford 6.4 Diesel engine. This code indicates that the Powertrain Control Module (PCM) has detected an incorrect signal from the camshaft position sensor circuit. The PCM uses the camshaft position sensor to determine the exact position of the engine’s pistons and cylinders in order to adequately control fuel delivery and ignition timing. If an incorrect signal is received, the PCM will set this code and illuminate the Check Engine Light. Common causes of this code include faulty wiring or connectors, faulty camshaft position sensor, or even a loose timing chain or belt. Diagnosing this issue can be difficult as it requires specialized tools and knowledge of diesel engines.

Automobile: Ford 6.4 Diesel

The Ford 6.4 diesel engine is a powerful and reliable workhorse. It is the perfect choice for drivers looking for a dependable and efficient engine that can handle long drives and tough tasks. This engine is built with durability in mind and has been designed to last longer than most other engines on the market.

Benefits

The Ford 6.4 diesel engine has many benefits that make it an attractive option for drivers. One of the main benefits of this engine is its ability to deliver high torque and power output, allowing it to perform well in a variety of applications including hauling, towing, and racing. The engine also offers excellent fuel economy, making it an economical choice for those who want to save money on fuel costs. Additionally, this engine is easy to maintain and requires minimal servicing, which makes it an ideal choice for drivers who want a reliable motor without having to worry about frequent maintenance or repairs.

Features

The Ford 6.4 diesel engine comes with many features that make it stand out from other engines on the market. The engine has a high-pressure common rail direct injection system that helps increase fuel efficiency and power output while reducing emissions. It also has an advanced turbocharger system that provides extra power when needed and helps boost torque output when necessary. Additionally, this engine has a new cast iron block design that improves durability by helping reduce wear and tear over time, as well as providing increased protection against corrosion and other damage from the elements.

Specifications

The Ford 6.4 diesel engine has several specifications that make it an attractive option for drivers looking for a powerful yet efficient motor for their vehicle. This engine is available in two versions; one with 6 cylinders and one with 8 cylinders, both offering different power outputs depending on your needs. The 6 cylinder version produces up to 300 horsepower while the 8 cylinder version can produce up to 350 horsepower at peak performance levels. Additionally, this motor offers up to 800 lb-ft of torque at peak performance levels which is more than enough power for most applications such as hauling heavy loads or off-roading capabilities in rugged terrain conditions.

Performance

The Ford 6.4 diesel engine offers excellent performance in all types of driving conditions due to its advanced fuel injection system which allows it to deliver optimum performance under all types of road conditions without sacrificing fuel economy or emissions levels. This motor also boasts impressive acceleration capabilities due to its higher torque output which helps provide quick acceleration even under heavy loads or tough driving conditions such as climbing hills or navigating difficult terrain features like mud or sand dunes with ease. Additionally, this motor’s superior reliability makes it an ideal choice for those who need an efficient yet dependable motor that won’t let them down when they need it most – out on the open road!

Overview Of Ford 6.4 Diesel Engine

The Ford 6.4L Power Stroke is a diesel engine used in heavy-duty pickup trucks and commercial vehicles manufactured by the Ford Motor Company. The 6.4L Power Stroke has been used in the Super Duty F-Series from 2008 to 2010, as well as in Econoline vans and commercial chassis from 2009 to 2019. It was designed to replace the 6.0L Power Stroke and is an improved version of the earlier 5.4L and 6.0L V8 diesel engines offered by Ford.

The 6.4L Power Stroke features advanced technology such as common rail fuel injection, exhaust gas recirculation (EGR), and a variable geometry turbocharger (VGT). This engine produces 350 horsepower at 3,000 rpm and 650 lb-ft of torque at 2,000 rpm, making it one of the most powerful diesel engines available in production vehicles today.

The Ford 6.4L Power Stroke has been well-received by drivers due to its impressive power and fuel efficiency. However, as with any vehicle, there are some common problems associated with this engine that owners should be aware of before purchasing a vehicle equipped with it.

Advantages Of Ford 6.4 Diesel Engine

The Ford 6.4L Power Stroke is an impressive engine that offers drivers plenty of power and performance capabilities that are perfect for heavy-duty applications like towing or hauling large loads. It’s also an efficient engine that can help reduce fuel costs over time while still providing plenty of power when needed most.

In addition to its impressive performance capabilities, the Ford 6.4L Power Stroke also offers drivers several advantages over other diesel engines on the market today:

• Durability: The Ford 6.4L Power Stroke is built with durable components such as forged connecting rods and high-strength cylinder heads, making it capable of handling heavy loads without sacrificing longevity or reliability over time;
• Fuel Efficiency: Thanks to its common rail fuel injection system and variable geometry turbocharger (VGT), the Ford 6.4L Power Stroke offers enhanced fuel economy compared to other diesel engines;
• Low Emissions: The EGR system on this engine helps reduce emissions significantly compared to non-EGR equipped diesel engines;
• Low Maintenance Requirements: With proper maintenance and care, this engine can offer many miles of reliable service without requiring major repairs or overhauls;

Disadvantages Of Ford 6.4 Diesel Engine

While the advantages of owning a vehicle with a Ford 6.4L Power Stroke engine are undeniable, there are also some disadvantages associated with it that should be considered before purchasing one:

• Costly Parts: Replacement parts for this engine tend to be expensive due to their specialized nature;
• High Maintenance Costs: The cost for regular maintenance on this engine can add up quickly due to its advanced technology components;
• Poor Fuel Economy: While efficient compared to other diesel engines on the market today, this engine still suffers from poor fuel economy when driven in city conditions or under heavy loads;

Common Problems With Ford 6 . 4 Diesel Engine

As with any vehicle component or system, there are some common problems associated with the Ford 6 . 4L Power Stroke engine that owners should be aware of before purchasing a vehicle equipped with it :

• Injector Failure : Injector failure is one of the most common issues encountered by owners of these engines , which can lead to decreased performance , accelerated wear , excessive exhaust smoke , and costly repairs ;
• Turbocharger Issues : Due to their complex design , turbochargers on these engines are prone to failure if not properly maintained , leading to decreased performance and costly repairs ; • Exhaust Gas Recirculation (EGR) System Issues : This system helps reduce emissions but can be prone to failure if not properly maintained , leading to increased emissions levels ; • Coolant Leaks : Coolant leaks can occur due to worn gaskets or hoses in need of replacement , leading to decreased cooling efficiency .

Reviews On Ford 6 . 4 Diesel Engine

Overall , reviews from drivers who have owned vehicles equipped with a Ford 6 . 4 L Powerstroke have been mostly positive due its powerful output , efficient operation , low emissions levels , durability , low maintenance requirements , and reasonable price point . Drivers have praised its ability tow large loads without sacrificing performance or reliability over time . While there have been some reports from owners about injector failure issues or turbocharger issues , these appear isolated incidents rather than widespread problems affecting all owners .

FAQ & Answers

Q: What are the benefits of Ford 6.4 Diesel engine?
A: The Ford 6.4 Diesel Engine is highly durable, efficient and reliable. It has a long service life and is known for its performance in extreme conditions.

Q: What are the common problems with Ford 6.4 Diesel Engine?
A: Common problems with the Ford 6.4 Diesel Engine include injector failure, turbocharger issues, Exhaust Gas Recirculation (EGR) system issues, and coolant leaks.

Q: What are the advantages of Ford 6.4 Diesel engine?
A: The advantages of the Ford 6.4 Diesel engine include durability, efficiency, and reliability. It also has a long service life and is known for its performance in extreme conditions.

Q: What are the disadvantages of Ford 6.4 Diesel engine?
A: Some of the disadvantages of the Ford 6.4 Diesel engine include costly parts, high maintenance costs and poor fuel economy.

Q: What is the general opinion on Ford 6.4 Diesel engine?
A: Generally speaking, reviews on the Ford 6.4 Diesel engine are generally positive with most customers finding it to be reliable and efficient with few issues encountered during use or maintenance.

In conclusion, the Ford 6.4 diesel is a powerful and reliable engine that has become a popular choice for many truck owners. Its turbocharged power and fuel efficiency make it an attractive choice for those who want to get the most out of their vehicle. Its ability to handle heavy loads and its durability also make it an excellent choice for those who are looking for a dependable truck engine. The Ford 6.4 diesel is a great option for those who want a dependable, powerful, and efficient engine for their truck.

Author Profile

Carl Frisch
Carl Frisch
With more than 30 years in the bicycle industry, I have a strong background in bicycle retailing, sales, marketing and customer service. I have a passion for cycling and a dedication to excellence. As a manager, I worked diligently to increase my capabilities and responsibilities, managing up to eleven mechanics (at Palo Alto Bicycles) and later as a working partner in my own store.

As the shop owner of Spoke n’ Word Cycles in Socorro, NM, the success of the mission was my responsibility, which I pursued passionately since we opened in 2003 through the spring of 2011. I am adept at managing owned and loan inventory, preparing weekly & annual inventory statements, and managing staff. The role as managing partner also allowed me tremendous freedom. I used this personal freedom to become more deeply involved in my own advancement as a mechanic, to spearhead local trail building, and advocating for cycling both locally and regionally.

As a mechanic, I have several years doing neutral support, experience as a team mechanic, and experience supporting local rides, races, club events. I consistently strive to ensure that bicycles function flawlessly by foreseeing issues and working with the riders, soigners, coaches and other mechanics. Even with decades of experience as a shop mechanic and team mechanic, and continue to pursue greater involvement in this sport as a US Pro Mechanic, and UCI Pro Mechanic.

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