Understanding Ford EGR Systems
The acronym “EGR” stands for Exhaust Gas Recirculation, and it is a crucial component of a vehicle’s emissions control system. In the context of Ford vehicles, the EGR system plays a significant role in reducing smog-causing nitrous oxides (NOx) by recirculating a portion of the exhaust gases from each cylinder of the engine back into the intake manifold.
Ford’s EGR Systems
Ford’s EGR systems are designed with specific components and monitoring methods to effectively manage exhaust gas recirculation. There are three main EGR systems used by Ford:
1. DPFE System: The Delta Pressure Feedback EGR (DPFE) system is the oldest of the three EGR systems used by Ford. It measures the EGR flow based on the difference in pressure on both sides of the metered orifice in the exhaust part of the EGR system. This system uses a DPFE sensor to monitor EGR flow and detect flow errors .
2. ESM System: The EGR System Module (ESM) is one of Ford’s latest EGR systems for gasoline engines. It combines the EGR valve, EVR, MAP, and DPFE sensor into one package. The ESM system is designed to monitor and control EGR flow, and it is equipped with sensors to diagnose problems within the system .
3. Other Electric EGR Systems: Ford also utilizes electric EGR systems with components such as a stepper motor valve and duty-cycle solenoid valve, each with its own set of sensors to monitor flow rate.
Diagnosis and Repair
When diagnosing and repairing Ford EGR systems, it is essential to understand the unique components and monitoring methods employed by Ford. The EGR system’s functionality is monitored by the Engine Control Module (ECM), and understanding the specifics of how each EGR system operates is crucial for effective troubleshooting and maintenance.
Importance of EGR Maintenance
While Ford’s EGR systems typically do not require regular maintenance, issues such as a clogged or sticking valve can lead to various problems, including the check engine light turning on, decreased gas mileage, rough idling, or failure to pass emissions tests.
In summary, the Ford EGR system is a vital component of the vehicle’s emissions control system, and understanding the specific EGR systems used by Ford, their components, and monitoring methods is essential for effective diagnosis and maintenance.
Contents
- What is the life expectancy of EGR?
- Is the EGR easy to fix?
- Why would you delete an EGR?
- What happens if your EGR is bad?
- Is EGR expensive to fix?
- Is it OK to drive with a bad EGR?
- Does an EGR delete make black smoke?
- How much does it cost to replace the EGR valve?
- How much horsepower does an EGR delete add?
- Can you drive without an EGR?
What is the life expectancy of EGR?
Generally, an EGR valve has a lifespan of about 10 years or 100,000 miles, whichever comes first. Regular cleaning every 50,000 miles or so will extend that lifespan.
Is the EGR easy to fix?
Fortunately, an experienced mechanic can easily fix a clogged EGR pipe. The solution involves detaching the EGR pipe and spraying the inside with carburetor cleaner. This substance loosens up any deposits, which the mechanic then scrubs free using a metal-bristled brush.
Why would you delete an EGR?
Deleting the EGR system reduces carbon buildup and improves airflow to the engine. This will result in better performance. With an EGR delete, you may experience improved throttle response, increased horsepower, and greater fuel efficiency.
What happens if your EGR is bad?
A malfunctioning EGR valve can lead to a noticeable decline in engine performance. You may experience a rough idle, hesitation, or stalling when starting your vehicle. Acceleration may feel sluggish, or you may notice a lack of power when driving uphill. Increased fuel consumption.
Is EGR expensive to fix?
How much does it cost to replace an EGR valve? The average cost of replacing an EGR valve is £265, with prices ranging from £150 and £650. If the faulty EGR valve has caused increased emissions and overheating there is a possibility that it could have caused damage to associated components.
Is it OK to drive with a bad EGR?
Technically, you can drive your vehicle with a bad EGR valve, but your vehicle will run rough, shake at idle, and a check engine light will be illuminated.
Does an EGR delete make black smoke?
Removing the EGR will not cause black smoke but it won’t improve the situation either.
How much does it cost to replace the EGR valve?
The average cost for an EGR Valve Replacement is between $364 and $443. Labor costs are estimated between $89 and $112 while parts are priced between $276 and $331. This range does not include taxes and fees, and does not factor in your unique location.
How much horsepower does an EGR delete add?
Usually, it is minimal. Deleting the EGR only boosts horsepower by a small percentage. For many people, it is not even noticeable. There are better ways to boost your horsepower.
Can you drive without an EGR?
Technically you can drive without a working EGR valve.
The role of your EGR valve is to reduce the number of toxic NOx gases in the air, so if it isn’t working quite right, more toxic gases will be released into the air. For this reason, we don’t recommend driving without a working EGR valve for too long.