i think it's the ignition start fuse, but there is power to the rest of the fuses. i was told to replace the computer or ECM or CPU or whatever you want tot call it. i bought a new one and had it reprogrammed. installed and still nothing. i ran a wire from the battery to the fuse and installed a toggle switch and now it will start and all the lights on the dash will work when i turn the key on. the transmission is in limp mode, no low gear and no high gear. i read that you can re-teach the transmission by turning the key to the second position and press the accelerator to the floor for 30 seconds and then turn the key off. when i start the truck and put it in drive the transmission will work fine for a few minutes and then goes back into limp mode. have to manually change the transmission between 2nd and drive. still no low gear or overdrive.
Sep 8, 2020 at 2:29 PM
