What Does an EGR Delete Do for a Diesel Truck?

An EGR delete involves removing or bypassing the Exhaust Gas Recirculation (EGR) system from a diesel engine. The EGR system is designed to reduce emissions by recirculating a portion of the engine’s exhaust gases back into the engine’s intake.

This is what would happen if you delete your EGR:

1. Improved Engine Performance
   Without the EGR system, your truck’s engine no longer has to re-burn exhaust gases, allowing it to take in more clean, oxygen-rich air. This will improve combustion efficiency, resulting in better throttle response, increased horsepower, and torque. Drivers often notice a more powerful engine after an EGR delete.

2. Better Fuel Economy
   The removal of the EGR system reduces the strain on the engine and will lead to an improvement in fuel efficiency. By burning more clean air and less recirculated exhaust, the engine uses fuel more effectively.

3. Reduced Maintenance Issues
   The EGR system can cause carbon buildup inside the engine over time, leading to problems such as clogged intake manifolds or reduced engine performance. By removing the EGR, truck owners avoid these maintenance headaches and prevent costly repairs.

4. Lower Exhaust Gas Temperatures (EGT)
   EGR systems tend to increase the temperature of exhaust gases entering the engine, which will sometimes overheat the engine and damage internal components. An EGR delete will help lower these exhaust gas temperatures, making the engine run cooler.

In summary, deleting the EGR system on diesel trucks will improve performance, fuel efficiency, and reduce maintenance issues.