please help! First Diesel truck!!

[todd99]

I traded for a 2000 ford f250 superduty 7.3 with automatic transmission. I am having problem with the transmission shifting. I have read through most of the posts but don't seem to find one that fits what my truck is doing. I can manually shift the truck from 1st thru 4th with the shifter and it shifts fine. No slow shifting or hesitation or slipping. but when I drop it in drive and excelerate it stays in 1st at any rpm until I completely let off the gas than it shifts right to 4th. skips the gears in between. Can stop and start again and it will do the same thing. won't shift out of low until you let completely off the gas. Also the overdrive light on the end of the gear shifter hand is blinking as well-not sure if this is tied to the problem or not? Stopped at my local ford dealer today and they told me it could be any number of things that the only way to tell for sure would be to bring it in and have it hooked to the computer? A friend of mine also told me it was likely the shifter solenoid inside the pan? Any and all idea's, thoughts or suggestions would be greatly appreciated as I am already getting pretty discussed with the truck. Todd in West Virginia.

[99TonkaStroke]

mine did the same thing. wouldnt shift from first, it would redline until you let off the gas, then would skip 2nd and shift to 3rd. i had broken the intermediate sprag gear. its usually caused by regular full throttle shifts from 1st to 2nd.

if you're running any kind of tuner, make sure it has a transmission program, if not...this problem will continue to happen on the next trans.

(also where you located in WV? i've got family up there...and my old powerstroke now lives in Beckley.)