Transmission Not Shifting Right(Or At All!)
Let's start off with the mods: '01 F-250 XLT, auto, 4x4. It has TW 6pos chip, Six-Gun tuner, Big Head wga, Whizz Wheel, 4" exhaust, Power Elbow, Banks Intercooler, & ITP overboost annihilator.
I parked it fri(12/21) with no problems & started it back up to go to work this morning(12/27) & when I got on the main drag, it wouldn't shift from either 3rd-4th or 4th-OD. The RPMs just increase & the truck has no power. If you're travelling uphill, it feels like it shifts between 3rd & 2nd or 4th & 3rd(not sure). It doesn't feel like the TC is locked up either when I go into R. It should have more balls even in R but it feels like it's low in fluid. I had also checked under the truck & the cooler for leaks, but everything's dry. Finally, I checked the trans fluid & it's right up where it should be & it's clean. On my way to work, the "OFF" light on the shift lever started blinking. It's not a constant blink, it's flashing like a code. I wasn't able to see what the flashes were. After we checked the trans out, I started the truck to get it out of the garage & the light isn't flashing anymore, but the trans is still shifting like poo. Any ideas? Thanks to all in advance.