Rays98GoVols
SDD Junior Member
I have a 2008 King Ranch with the 6.4. I bought it in 2014 with 128000. It now has 176000. It came EGR and DPF deleted. They were using a Spartan Tuner. I get 13-14mpg in town and 20 on the highway BECAUSE it was deleted.
You need to contact whoever you bought it from. The place where I bought my truck at uses only Spartan. MAYBE they can at least tell you what Company made the tuner. With that you can easily buy another tuner and retune it yourself....IF a retune is your issue....GOOD LUCK!
You need to contact whoever you bought it from. The place where I bought my truck at uses only Spartan. MAYBE they can at least tell you what Company made the tuner. With that you can easily buy another tuner and retune it yourself....IF a retune is your issue....GOOD LUCK!