Discussion Starter · #1 ·
i just bought a 99 f250 auto 7.3 about 2 months ago and should be getting my php pheonix chip today but noticed my torque converter will go in and out of lock up around 40mph. If i speed up it will go away but only when im cruising around that speed. The overdrive light worked fine but when I got the truck I had to change the shifter stem on the colum because it was broken. Now the O/d light will only go on in "P, R, & N" Not when im in "D,2,or1". The truck will shift in and out of O/D but no light. I was told it could be the selector switch out of adjustment which is kindve making sense since the Cruise control isnt working either. Im was planning on installing the chip asap but im worried about the consequences if i dont address this problem first. Any advice guys?