1994 T E4OD kicking out of overdrive on Interstate ?

[OLDBULL8]

This from the PSD forum. Who would have thought something like this. Amazing what a person runs into from a PO.

Hey Plato and everyone else I did get it working. I found the problem to be l.e.d tail light bulbs. As crazy as that sounds someone told me that the brake light circuit is linked to the pcm as far as through the cruise control. I cant explain the whole detail but bottom line, I didn't even know I had led bulbs until someone told me that one of my brake lights weren't working so when I checked them I found out that my truck had led bulbs. I bought the correct bulbs and replaced them and the tranny immediately started working right. I battled this for 2 months and who would have figured this. So check your tail light bulbs. Good luck

 

[Moretorque]

That is why the oldies are goodies, what makes the new stuff easier to tolerate is the info on the net. Thanks all for giving me this info. The truck gives no problem around town driving. Only on the HighWay!