over drive in a automatic?
 

what is the over drive controlled by? Is it a electrical thing? I have every gear except that one. It's only on certain occasions i don't have it but now i'm not sure if i'll get it back?

im pretty sure if i remember correctly the overdrive is controlled by the computer which bases its shift pattern from the throttle position sensor, the engine speed sensor, and possibly the vehicle speed sensor (i think thats the 3rd one). there is also normally an overdrive off button used as well located inside the truck

ya i can turn the light off and on but it wont shift into that last year. all it'll let my truck go is about 75mph

might need to adjust your TPS. There is a thread on how to do it in teh sticky.

is tps throttle position sensor?

yes

thanks thats a awesome right up!

switch on top of pump

Got the goat fixed! Had to put a brand new tps in it. Thank god i dont have to drive the 5.4 v-8 F-250 triton anymore:tu: