I have an 01 with 89K... After repalcing lift pump with FASS encountered the hard start problem, but ONLY after the truck has been working hard; ( hauling camper & boat up over the mountains)..... When driving around town or driving a distance unloaded, it's no problem..... So I finally located a smarty to flash it with but I'm not sure what setting to use... The owner of the smarty thinks level two which increases the fuel delivered by the ECM... However it seemed to me that when I encountered the hard start problem it seemed the FASS was working very hard & throwing too much fuel into the hot engine???
So what is the desired setting???? Thanks...
So what is the desired setting???? Thanks...