bellis
SDD Junior Member
Hi everyone im new to the site. Just bought my first deisel a 2003 f250 with the 7.3. It is a rebuild in progress! I am having tranny problems the old tranny that was in the truck was in bad shape from the wreak so i bought a used one (4r100 out of an 2001) from a salvage yard for $800. After switching it out it will not shift into overdrive and the light on the shifter blinks. checked all fuses replace the bad ones and still same problem. Wondering if it could be the wireing harnest looks to be ok but maybe something im not able to see. Any ideals?