I have an ole 94 chevy 1500 diesel with 6.5 turbo diesel. He's ole green in my signature, he's rolling up on 250k on the clock. I pulled the EGR intake off 7 years ago and replaced that intake manifold with one that has no EGR mount / holes to recycle exhaust back through the intake.
Think about this, diesel exhaust as the motor wears makes more soot and than that muk gets returned back with fresh air fuel charge into the motor / intake....NOT on mine not anymore.
There is no way I'd want that DIESEL exhaust returned into my motor.
Intake air temp actually drops when you stop pushing the exhaust back into the motor, on mine the EGR return is on the intake runners, motor side of the turbo. The 6.5 was an easy choice as the same 6.5T motor setup was installed by GM in the heavy duty 2500 & larger trucks. I took about a millisecond thinking about if I should pull that exhaust recycle out of my motor before I did it. My motor had about 140k on it when I converted it and the intake ports were down near the size of a pencil full of soot when I pulled the OEM intake off to delete my EGR. I also had to update my ECU to avoid codes from being set.
The non intake EGR and adding larger exhaust on mine made a significant increase in performance and that improvement helped my MPG as long as I controlled my desire push the go peddle.
I'm not a coal roller so please don't attack me for sharing my experience with deletion of the devise.
19 Equinox 2.0T Pepperdust Premier AWD delivery 12/26/18
07 DTS Caddy
94 C1500 6.5T diesel Silverado 234K ole green
Last edited by Crankme69; 01-27-2020 at 09:34 PM.