Written by Lars, SPETUNER Professional Modification Expert
Introduction
As a professional in diesel modifications, I’m here to guide you through the installation of the SPETUNER EGR Delete Kit for the 2007-2009 Dodge Ram 6.7L Cummins Diesel. This guide is designed to help you completely remove the EGR (Exhaust Gas Recirculation) system, which will improve engine performance, reduce carbon buildup, and eliminate potential failure points.
Please ensure that you are familiar with the tools required and follow the instructions carefully. Additionally, it’s important to understand the local laws surrounding emissions modifications before proceeding with this upgrade.
Required Tools and Equipment
- Ratchet Wrench and Extensions
- 10mm, 13mm, and 7mm Socket Wrenches
- Flathead Screwdriver
- Rubber Mallet (for gentle tapping)
- Torque Wrench
- Pliers (for hose clamps)
- Teflon Tape (for sealing)
- Flat or Stubby Wrench
- Engine Coolant Catcher (if necessary)
Kit Components
The SPETUNER EGR Delete Kit comes with the following components:
- 1x EGR Block-off Plate for Intake
- 1x EGR Block-off Plate for Exhaust
- 1x Throttle Plate Delete
- 1x Coolant Bypass Hose
- 1x Support Bracket
- Various Bolts and Nuts for Installation
- Gaskets and Seals
Legal Considerations
Before proceeding with the installation, please note the following:
- Local Emissions Laws: EGR system modifications can affect the emissions compliance of your vehicle. In some areas, deleting or modifying the EGR system may be illegal for street use due to emissions regulations. Make sure to check with local authorities about the legality of EGR deletes in your region, particularly if your vehicle will undergo emissions testing.
- Warranty: Removing or modifying the EGR system may void the vehicle’s warranty if still under coverage. Always verify warranty terms before proceeding.
- Off-Road Use: In many cases, such modifications are allowed for off-road vehicles or vehicles that are not used in emission-regulated areas.
Installation Steps
Step 1: Vehicle Preparation
- Park and Secure the Vehicle: Make sure the vehicle is parked on a flat surface with the parking brake engaged. If necessary, lift the vehicle using a jack and secure it with jack stands.
- Disconnect the Battery: Disconnect the vehicle's negative battery terminal to prevent electrical issues during installation.
- Allow Engine to Cool: If the engine has been running recently, allow it to cool before starting any work on the cooling or exhaust systems.
Step 2: Removing the EGR Components
Remove the Engine Cover:
Remove the decorative engine cover by pulling it off. You may need to remove the dipstick to get the cover off and then replace it afterward.
Disconnect the Intake Crossover Tube:
Use a ratchet to remove the 10mm bolt securing the crossover tube to the engine. Once the bolts are undone, remove the tube from the engine.
For stubborn V-band clamps, you may need to tap them gently with a rubber mallet or use a screwdriver to pry them open.
Remove the EGR Actuator and Valve:
The EGR actuator is located on the intake side. Remove the four bolts securing it in place.
Gently tap the actuator with a rubber mallet to loosen it, then disconnect the electrical connections. Set the actuator aside for later use or discard if no longer needed.
Remove the Throttle Valve:
The throttle valve has four bolts securing it. Disconnect the electrical connections and remove the air intake boot to access the bolts.
Once the bolts are removed, take the throttle valve out.
Step 3: Installing the SPETUNER EGR Delete Kit
Install the EGR Block-off Plates:
Start with the intake side block-off plate. Using the four bolts provided in the kit, install the plate into the intake manifold where the EGR valve was.
Next, move to the exhaust side and install the second block-off plate onto the exhaust manifold.
Throttle Valve Delete:
Replace the throttle valve with the provided throttle plate delete. Install the new part using the four bolts provided. Reinstall the intake boot and secure all connections.
Install the Coolant Bypass Hose:
Remove the existing coolant hose that runs into the EGR cooler. Install the coolant bypass hose using the provided hose clamps, ensuring that it is securely attached and no coolant will leak.
Support Bracket and Miscellaneous Components:
Install the support bracket onto the intake manifold using the provided bolts.
Use any additional brackets or hardware to secure the hoses and ensure that nothing is left dangling.
Step 4: Final Checks
Reconnect Electrical Connections:
Make sure to disconnect and secure any leftover electrical connections from the EGR system, including those from the actuator and throttle valve. Zip tie these wires away from moving parts.
Check for Leaks:
Start the engine and check for any signs of coolant or exhaust leaks around the installed block-off plates and hoses.
Listen for any unusual engine sounds, such as exhaust leaks, and ensure all components are functioning smoothly.
Test the Vehicle:
After confirming that there are no leaks and the vehicle is running smoothly, drive the vehicle briefly to verify that it performs well without the EGR system.
Conclusion
By following these steps, you will have successfully installed the SPETUNER EGR Delete Kit on your 2007-2009 Dodge Ram 6.7L Cummins Diesel. This modification will improve engine reliability and performance by eliminating the EGR system, reducing carbon buildup, and removing a potential point of failure in the engine’s cooling system.
Always remember to consult local emissions laws before proceeding with any EGR modification to ensure you remain compliant. Enjoy your enhanced vehicle performance and cleaner engine bay!
Feel free to contact SPETUNER's technical support for any further questions or if you encounter any issues during the installation process.
FAQs
Q1: What are the benefits of deleting the EGR on a 6.7 Cummins?
A1: Deleting the EGR on a 6.7 Cummins can improve engine performance, reduce carbon buildup, prevent coolant leaks into the intake, and enhance engine longevity by eliminating the EGR cooler's potential failure points.
Q2: Is it good to delete a 6.7 Cummins?
A2: Deleting the EGR on a 6.7 Cummins can offer better fuel efficiency, reduced maintenance costs, and enhanced reliability. However, it’s important to consider local emissions laws and potential legal implications before making the modification.
Q3: What does an EGR delete kit do on a diesel?
A3: An EGR delete kit removes the EGR system from a diesel engine, including the EGR valve and cooler. This prevents exhaust gases from being recirculated back into the intake, improving airflow and overall engine performance.
Q4: Is an EGR delete kit legal?
A4: The legality of an EGR delete kit depends on your location. In some areas, deleting the EGR system is illegal for street use due to emissions regulations. Always check local laws before proceeding with the modification.
Q5: Will deleting the EGR increase horsepower?
A5: Yes, deleting the EGR can increase horsepower by improving airflow and reducing exhaust gas temperatures. This allows the engine to operate more efficiently, especially in performance applications.
Q6: Does EGR delete improve fuel economy?
A6: Deleting the EGR system can improve fuel economy by increasing engine efficiency. The engine will no longer be consuming fuel to burn recirculated exhaust gases, leading to more power per unit of fuel.
Q7: What problems can an EGR delete solve?
A7: EGR deletes can solve issues such as clogged intake manifolds, excessive carbon buildup, potential coolant leaks from a failing EGR cooler, and reduced engine performance caused by the recirculation of exhaust gases.
Q8: Are there any downsides to deleting the EGR?
A8: Potential downsides include the legal implications if the modification is not allowed in your region and the possibility of triggering check engine lights if not properly installed or tuned. Additionally, removing the EGR system can affect emissions performance.
Q9: How hard is it to install an EGR delete kit?
A9: Installing an EGR delete kit is relatively straightforward for those with basic mechanical skills. The process involves removing the EGR valve, cooler, and related components, and replacing them with block-off plates and bypass hoses.
Q10: Can I pass emissions testing after an EGR delete?
A10: It depends on your location. In areas where emissions testing is required, an EGR delete may cause your vehicle to fail the test due to the modification of the emissions control system. Be sure to check local regulations before proceeding with the delete.
