How to Install 2017-2019 6.6L Duramax L5P EGR Valve Cooler Delete Kit | Step-by-Step Guide

Learn how to install a Duramax L5P EGR delete kit with this comprehensive guide. Improve performance and efficiency.

1. Installation Preparation

Required Tools and Materials

To install the 2017-2019 6.6L Duramax L5P EGR valve cooler delete kit, you'll need specific tools and materials. Essential tools include wrenches, screwdrivers, and pliers. You will also need the diesel delete kit, which includes all necessary components for the EGR delete. Proper preparation with these tools ensures a smoother installation process.

Safety Measures

Before starting the installation, prioritize safety. Disconnect the vehicle’s battery to avoid electrical shocks. Wear safety gloves and goggles to protect yourself from any debris or sharp edges. Ensuring your safety during the installation is crucial for a successful process.

Vehicle Preparation

Prepare your vehicle by locating the 6.6 Duramax EGR valve location. Make sure the engine is cool to avoid burns. Lift the vehicle using a jack and secure it with jack stands for better access. Proper vehicle preparation will facilitate easier installation of the lly duramax egr delete kit.

Now that you have all tools and safety measures in place, let’s move on to removing the old EGR valve cooler. Continue reading for detailed steps.

2. Removing the Old EGR Valve Cooler

Step 1: Disconnect Relevant Connections

Begin by disconnecting all relevant connections. Locate the EGR valve cooler and identify the hoses and electrical connections attached to it. Carefully disconnect these connections using the appropriate tools. This step is crucial for safely removing the EGR valve cooler without damaging other components.

Step 2: Remove the EGR Valve Cooler

Once all connections are disconnected, proceed to remove the EGR valve cooler. Use a wrench to unbolt the cooler from its mounting points. Gently lift and remove the cooler from the engine bay. Ensure you handle the cooler carefully to avoid damaging other parts of the engine.

Step 3: Clean the Installation Area

After removing the old EGR valve cooler, clean the installation area thoroughly. Remove any debris, dirt, or residue that may be present. A clean installation area ensures the new L5P EGR delete kit will fit properly and function effectively.

With the old EGR valve cooler removed, you’re now ready to install the new delete kit. Continue reading to learn how to install the EGR valve cooler delete kit.

3. Installing the EGR Valve Cooler Delete Kit

Step 1: Install the New Components

Begin installing the new L5P EGR delete kit components. Follow the L5P EGR delete instructions provided with your delete kits. Place the new components in the position where the old EGR valve cooler was located. Use the provided bolts and gaskets to secure the components firmly.

Step 2: Reconnect Relevant Parts

Reconnect all relevant parts that were disconnected earlier. This includes attaching the new hoses and any electrical connections as per the L5P EGR delete kit instructions. Ensure each connection is tight and secure to prevent any leaks or malfunctions.

Step 3: Tighten and Inspect

Once all parts are reconnected, tighten all bolts and fittings to the recommended torque specifications. Inspect the installation to ensure all components are properly aligned and secured. Check for any potential issues or loose connections.

Now that you have installed the new EGR valve cooler delete kit, it’s time to test the system. Continue reading to learn how to test your installation and ensure everything is working correctly.

4. System Testing

Pre-Start Checks

Before starting the engine, perform a thorough pre-start check. Ensure all connections are secure and all bolts are tightened according to the instructions. Double-check the 6.6 Duramax EGR valve location to confirm that the new delete kit is properly installed. This step is crucial to avoid any issues during the engine start.

Starting the Engine

Start the engine and let it idle for a few minutes. Observe the engine for any unusual noises or leaks. Pay close attention to the area where the L5P EGR delete kit was installed. If you notice any issues, shut off the engine immediately and recheck the installation. This initial startup helps ensure the system is functioning correctly.

Road Test and Performance Check

After the engine has idled successfully, take the vehicle for a short road test. Monitor the vehicle’s performance and check for any warning lights on the dashboard. Ensure the vehicle runs smoothly and that the EGR delete is functioning as expected. This road test helps confirm the success of the installation and identifies any potential issues.

With the system tested and running smoothly, you’re almost done. The next section covers important maintenance and care tips for your newly installed EGR delete kit. Keep reading to learn how to maintain your system for optimal performance.

5. Maintenance and Care

Regular Inspections

Conduct regular inspections of your EGR delete kit and related components. Check for any signs of wear, leaks, or loose connections. Regular maintenance ensures the long-term reliability of your Duramax L5P delete kit and prevents potential issues.

Preventive Maintenance

Follow a preventive maintenance schedule to keep your engine running smoothly. This includes regular oil changes, filter replacements, and coolant checks. Proper maintenance of your vehicle's systems will enhance the performance and longevity of the EGR delete.

Addressing Potential Issues

Be proactive in addressing any potential issues that arise. If you notice any performance changes, warning lights, or unusual noises, inspect the EGR delete kit and surrounding components. Early detection and resolution of problems can prevent more significant issues down the line.

By following these maintenance tips, you can ensure your EGR delete kit performs optimally.

Conclusion

Installing a 2017-2019 6.6L Duramax L5P EGR valve cooler delete kit can significantly enhance your vehicle's performance and reliability. By carefully preparing for the installation, removing the old EGR valve cooler, correctly installing the new delete kit, thoroughly testing the system, and performing regular maintenance, you ensure optimal functionality and longevity of your vehicle’s engine.

This comprehensive guide provides the necessary steps and precautions to successfully install the L5P EGR delete kit. Following these instructions not only improves your vehicle's efficiency but also extends its lifespan. Remember, regular inspections and preventive maintenance are key to maintaining the performance of your EGR delete kit and your vehicle as a whole.

If you have any questions or need further assistance, don't hesitate to seek professional help or consult additional resources. Enjoy the enhanced performance of your Duramax L5P with your new EGR valve cooler delete kit!

See for more installation instructions:

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FAQs

Q1: What all is needed to delete a L5P?
A1: To delete an L5P, you will need an L5P EGR delete kit, basic hand tools (wrenches, screwdrivers, pliers), safety equipment (gloves, goggles), and an engine tuner for reprogramming the engine.

Q2: What are the benefits of deleting L5P?
A2: Deleting an L5P can improve engine performance, increase fuel efficiency, reduce exhaust temperatures, and enhance overall reliability by eliminating the EGR system and related components.

Q3: Can you clean an EGR valve on a Duramax diesel?
A3: Yes, you can clean an EGR valve on a Duramax diesel. Remove the valve, clean it with a suitable cleaner to remove carbon buildup, and ensure it moves freely before reinstalling.

Q4: Where is the catalytic converter on the L5P?
A4: The catalytic converter on the L5P is located in the exhaust system, typically between the exhaust manifold and the muffler, underneath the vehicle.

Q5: Where are the two catalytic converters located?
A5: On some vehicles, including certain Duramax models, there are two catalytic converters. They are usually located in the exhaust system, with one near the engine and the second further downstream, closer to the muffler.

Q6: What is the code for missing catalytic converter?
A6: The diagnostic trouble code (DTC) for a missing catalytic converter is typically P0420, which indicates a catalyst system efficiency below the threshold.

Q7: How long does it take to install an L5P EGR delete kit?
A7: Installing an L5P EGR delete kit can take approximately 4-6 hours, depending on your experience and familiarity with the vehicle.

Q8: Will deleting the EGR system void my warranty?
A8: Yes, deleting the EGR system can void your vehicle’s warranty, as it involves modifying the emissions control system, which is covered under most warranties.

Q9: Are there legal implications to deleting the EGR system?
A9: Yes, deleting the EGR system can have legal implications, as it may violate emissions regulations in certain regions. It's important to check local laws before performing this modification.

Q10: How does an EGR delete affect emissions?
A10: An EGR delete typically increases NOx emissions, as it disables the system designed to reduce these pollutants. This can lead to non-compliance with emissions standards.