93 F250 7.3L non Turbo Transmission Question

[Smithdad]

I have a 93 F250 7.3L Non Turbo with Auto Tranny. Ran fine yesterday. Took out the radio to change it but did not put new one in. Drove it this am and it is shifting very hard and seems to be slipping some. Fluid level is good. The little "off" light on the handle that tells you if over drive is on or off is flashing.
HELP!!!!!!!

 

[Bricks]

Welcome to FTF

If the o/d light is flashing the transmission has probably set a trouble code. If you can get a scanner and read the code(s) that will help the techs here in diagnosing your truck's problem.

 

[5.0Flareside]

Welcome to FTF

If the o/d light is flashing the transmission has probably set a trouble code. If you can get a scanner and read the code(s) that will help the techs here in diagnosing your truck's problem.

yep you can either buy a code reader from amazon.com for bout 20-30 bucks or you can do the paperclip trick to count flashes that'll give you the codes too.


here is a link to how to do the paperclip-code reading... http://fordfuelinjection.com/?p=13

 

[Smithdad]

Thanks for all your help guys. Turns out it was the speed control sensor and another TPN? or something like that sensor. Replaced them and it is good to go