Hey guys my name is Caleb and just got my phoenix chip installed in my early 99 250 Super Duty 4x4 Crew Cab Auto. It has 60tow, 80dd, 100 perf, and hi idle. I like the power of the chip but the transmission shifting is terrible. the 80 setting either shifts hard when I am light on the throttle or seems to linger between shifts if I am WOT. dont know if this is something to do with the programming or not but I can go back to stock and the truck shifts perfectly every time. It also does the lingering on the 100 perf setting. Also the RPM's are up to 800-900 when idling with the chip on which i read somewhere might be normal for a chipped truck. Any ideas as to what the tranny problem is coming from. It is almost to aggravating to drive
Fri, January 8th, 2010, 02:31 PM
new chip having issues
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