Hope someone can help me out here. I have a 2001 with the 4.0. Well the check engine light came on a while back and i took it to a parts store to put it on the diagnostic. It said Low voltage to the EGR. Has anyone encountered this? Is it the egr going bad or wiring or someting going to it? Any input would be great. I dont believe it is effecting how the truck runs. Maybe affecting fuel consumption? This truck doesnt get very good mileage. What kinda of mileage should i expect from this supercab 4x4? Thanks in advanded any info would be great.